549 lines
25 KiB
Objective-C
549 lines
25 KiB
Objective-C
//
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// AVSettingsView.m
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// AVDemo
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//
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#import "AVSettingsView.h"
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#import "AVConstants.h"
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@interface AVSettingsView () <UITextFieldDelegate>
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@property (nonatomic, copy) AVSettingsViewCallback callback;
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@property (nonatomic, strong) AVVideoConfiguration *tempConfig;
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@property (nonatomic, assign) AVSettingsFieldMask fieldsMask;
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@property (nonatomic, strong) UIView *containerView;
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@property (nonatomic, strong) UIScrollView *scrollView;
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@property (nonatomic, strong) UIView *contentView;
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@property (nonatomic, strong) UITextField *streamIdField;
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@property (nonatomic, strong) UITextField *nicknameField;
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@property (nonatomic, strong) UISegmentedControl *codecSegment;
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@property (nonatomic, strong) UISegmentedControl *resolutionSegment;
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@property (nonatomic, strong) UITextField *fpsField;
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@property (nonatomic, strong) UITextField *maxBitrateField;
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@property (nonatomic, strong) UITextField *minBitrateField;
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@property (nonatomic, strong) NSLayoutConstraint *containerCenterYConstraint;
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@property (nonatomic, weak) UITextField *activeTextField; // 当前激活的输入框
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@end
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@implementation AVSettingsView
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- (instancetype)initWithFrame:(CGRect)frame {
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if (self = [super initWithFrame:frame]) {
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// UI will be setup when showing
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// 监听键盘通知
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(keyboardWillShow:)
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name:UIKeyboardWillShowNotification
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(keyboardWillHide:)
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name:UIKeyboardWillHideNotification
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object:nil];
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}
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return self;
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}
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- (void)dealloc {
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)setupUI {
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self.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.5];
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// 在方法开始时统一计算屏幕尺寸和方向，避免重复定义
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CGFloat screenHeight = CGRectGetHeight([UIScreen mainScreen].bounds);
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CGFloat screenWidth = CGRectGetWidth([UIScreen mainScreen].bounds);
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BOOL isLandscape = screenWidth > screenHeight;
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_containerView = [[UIView alloc] init];
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_containerView.backgroundColor = [UIColor systemBackgroundColor];
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_containerView.layer.cornerRadius = 12;
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_containerView.layer.masksToBounds = YES;
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[self addSubview:_containerView];
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_containerView.translatesAutoresizingMaskIntoConstraints = NO;
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_containerCenterYConstraint = [_containerView.centerYAnchor constraintEqualToAnchor:self.centerYAnchor];
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// 根据屏幕方向动态调整容器高度
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CGFloat maxHeight = isLandscape ? (screenHeight * 0.85) : 600; // 横屏时使用屏幕高度的85%
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[NSLayoutConstraint activateConstraints:@[
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[_containerView.leadingAnchor constraintEqualToAnchor:self.leadingAnchor constant:20],
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[_containerView.trailingAnchor constraintEqualToAnchor:self.trailingAnchor constant:-20],
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_containerCenterYConstraint,
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[_containerView.heightAnchor constraintLessThanOrEqualToConstant:maxHeight]
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]];
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// Add dismiss button
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UIButton *dismissButton = [UIButton buttonWithType:UIButtonTypeSystem];
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[dismissButton setTitle:@"×" forState:UIControlStateNormal];
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dismissButton.titleLabel.font = [UIFont systemFontOfSize:30];
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[dismissButton addTarget:self action:@selector(dismiss) forControlEvents:UIControlEventTouchUpInside];
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[_containerView addSubview:dismissButton];
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dismissButton.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[dismissButton.topAnchor constraintEqualToAnchor:_containerView.topAnchor constant:10],
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[dismissButton.trailingAnchor constraintEqualToAnchor:_containerView.trailingAnchor constant:-10],
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[dismissButton.widthAnchor constraintEqualToConstant:44],
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[dismissButton.heightAnchor constraintEqualToConstant:44]
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]];
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// Title
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UILabel *titleLabel = [[UILabel alloc] init];
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titleLabel.text = @"设置";
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titleLabel.font = [UIFont systemFontOfSize:20 weight:UIFontWeightBold];
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[_containerView addSubview:titleLabel];
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titleLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[titleLabel.topAnchor constraintEqualToAnchor:_containerView.topAnchor constant:20],
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[titleLabel.centerXAnchor constraintEqualToAnchor:_containerView.centerXAnchor]
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]];
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UIScrollView *scrollView = [[UIScrollView alloc] init];
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scrollView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive; // 允许滑动关闭键盘
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[_containerView addSubview:scrollView];
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_scrollView = scrollView;
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// 动态调整 scrollView 和按钮之间的间距
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CGFloat buttonAreaHeight = isLandscape ? 64 : 80; // 横屏时减小按钮区域高度
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scrollView.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[scrollView.topAnchor constraintEqualToAnchor:titleLabel.bottomAnchor constant:20],
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[scrollView.leadingAnchor constraintEqualToAnchor:_containerView.leadingAnchor],
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[scrollView.trailingAnchor constraintEqualToAnchor:_containerView.trailingAnchor],
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[scrollView.bottomAnchor constraintEqualToAnchor:_containerView.bottomAnchor constant:-buttonAreaHeight]
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]];
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UIView *contentView = [[UIView alloc] init];
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[scrollView addSubview:contentView];
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_contentView = contentView; // 保存引用
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contentView.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[contentView.topAnchor constraintEqualToAnchor:scrollView.topAnchor],
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[contentView.leadingAnchor constraintEqualToAnchor:scrollView.leadingAnchor],
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[contentView.trailingAnchor constraintEqualToAnchor:scrollView.trailingAnchor],
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[contentView.bottomAnchor constraintEqualToAnchor:scrollView.bottomAnchor],
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[contentView.widthAnchor constraintEqualToAnchor:scrollView.widthAnchor]
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]];
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// Add form elements (similar to settings VC)
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CGFloat topOffset = 10;
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CGFloat spacing = 20;
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// Stream ID (conditional)
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if (self.fieldsMask & AVSettingsFieldStreamId) {
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UILabel *streamIdLabel = [[UILabel alloc] init];
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streamIdLabel.text = @"Stream ID";
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streamIdLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
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[contentView addSubview:streamIdLabel];
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streamIdLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[streamIdLabel.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[streamIdLabel.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset]
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]];
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topOffset += 20;
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_streamIdField = [[UITextField alloc] init];
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_streamIdField.placeholder = @"请输入Stream ID";
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_streamIdField.borderStyle = UITextBorderStyleRoundedRect;
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_streamIdField.delegate = self;
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_streamIdField.returnKeyType = UIReturnKeyDone;
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[contentView addSubview:_streamIdField];
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_streamIdField.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[_streamIdField.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[_streamIdField.trailingAnchor constraintEqualToAnchor:contentView.trailingAnchor constant:-20],
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[_streamIdField.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset],
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[_streamIdField.heightAnchor constraintEqualToConstant:40]
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]];
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topOffset += 40 + spacing;
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}
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// Nickname (conditional)
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if (self.fieldsMask & AVSettingsFieldNickname) {
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UILabel *nicknameLabel = [[UILabel alloc] init];
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nicknameLabel.text = @"用户昵称";
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nicknameLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
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[contentView addSubview:nicknameLabel];
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nicknameLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[nicknameLabel.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[nicknameLabel.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset]
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]];
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topOffset += 20;
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_nicknameField = [[UITextField alloc] init];
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_nicknameField.placeholder = @"请输入昵称";
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_nicknameField.borderStyle = UITextBorderStyleRoundedRect;
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_nicknameField.delegate = self;
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_nicknameField.returnKeyType = UIReturnKeyDone;
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[contentView addSubview:_nicknameField];
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_nicknameField.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[_nicknameField.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[_nicknameField.trailingAnchor constraintEqualToAnchor:contentView.trailingAnchor constant:-20],
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[_nicknameField.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset],
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[_nicknameField.heightAnchor constraintEqualToConstant:40]
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]];
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topOffset += 40 + spacing;
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}
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// Video parameters (conditional)
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if (self.fieldsMask & AVSettingsFieldVideoParams) {
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// Resolution
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UILabel *resolutionLabel = [[UILabel alloc] init];
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resolutionLabel.text = @"分辨率";
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resolutionLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
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[contentView addSubview:resolutionLabel];
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resolutionLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[resolutionLabel.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[resolutionLabel.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset]
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]];
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topOffset += 20;
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_resolutionSegment = [[UISegmentedControl alloc] initWithItems:@[@"360p", @"480p", @"540p", @"720p"]];
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[contentView addSubview:_resolutionSegment];
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_resolutionSegment.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[_resolutionSegment.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[_resolutionSegment.trailingAnchor constraintEqualToAnchor:contentView.trailingAnchor constant:-20],
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[_resolutionSegment.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset],
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[_resolutionSegment.heightAnchor constraintEqualToConstant:32]
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]];
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topOffset += 32 + spacing;
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// FPS
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UILabel *fpsLabel = [[UILabel alloc] init];
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fpsLabel.text = @"帧率 (FPS)";
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fpsLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
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[contentView addSubview:fpsLabel];
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fpsLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[fpsLabel.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[fpsLabel.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset]
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]];
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topOffset += 20;
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_fpsField = [[UITextField alloc] init];
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_fpsField.placeholder = @"例如: 30";
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_fpsField.borderStyle = UITextBorderStyleRoundedRect;
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_fpsField.keyboardType = UIKeyboardTypeNumberPad;
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_fpsField.delegate = self;
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[self addDoneToolbarToTextField:_fpsField];
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[contentView addSubview:_fpsField];
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_fpsField.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[_fpsField.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[_fpsField.trailingAnchor constraintEqualToAnchor:contentView.trailingAnchor constant:-20],
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[_fpsField.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset],
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[_fpsField.heightAnchor constraintEqualToConstant:40]
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]];
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topOffset += 40 + spacing;
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// Max Bitrate
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UILabel *maxBitrateLabel = [[UILabel alloc] init];
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maxBitrateLabel.text = @"最大码率 (kbps)";
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maxBitrateLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
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[contentView addSubview:maxBitrateLabel];
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maxBitrateLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[maxBitrateLabel.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[maxBitrateLabel.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset]
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]];
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topOffset += 20;
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_maxBitrateField = [[UITextField alloc] init];
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_maxBitrateField.placeholder = @"例如: 2000";
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_maxBitrateField.borderStyle = UITextBorderStyleRoundedRect;
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_maxBitrateField.keyboardType = UIKeyboardTypeNumberPad;
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_maxBitrateField.delegate = self;
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[self addDoneToolbarToTextField:_maxBitrateField];
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[contentView addSubview:_maxBitrateField];
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_maxBitrateField.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[_maxBitrateField.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[_maxBitrateField.trailingAnchor constraintEqualToAnchor:contentView.trailingAnchor constant:-20],
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[_maxBitrateField.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset],
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[_maxBitrateField.heightAnchor constraintEqualToConstant:40]
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]];
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topOffset += 40 + spacing;
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// Min Bitrate
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UILabel *minBitrateLabel = [[UILabel alloc] init];
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minBitrateLabel.text = @"最小码率 (kbps)";
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minBitrateLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
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[contentView addSubview:minBitrateLabel];
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minBitrateLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[minBitrateLabel.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[minBitrateLabel.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset]
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]];
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topOffset += 20;
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_minBitrateField = [[UITextField alloc] init];
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_minBitrateField.placeholder = @"例如: 500";
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_minBitrateField.borderStyle = UITextBorderStyleRoundedRect;
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_minBitrateField.keyboardType = UIKeyboardTypeNumberPad;
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_minBitrateField.delegate = self;
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[self addDoneToolbarToTextField:_minBitrateField];
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[contentView addSubview:_minBitrateField];
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_minBitrateField.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[_minBitrateField.leadingAnchor constraintEqualToAnchor:contentView.leadingAnchor constant:20],
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[_minBitrateField.trailingAnchor constraintEqualToAnchor:contentView.trailingAnchor constant:-20],
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[_minBitrateField.topAnchor constraintEqualToAnchor:contentView.topAnchor constant:topOffset],
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[_minBitrateField.heightAnchor constraintEqualToConstant:40]
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]];
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topOffset += 40 + spacing;
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} // End of video parameters conditional block
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[NSLayoutConstraint activateConstraints:@[
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[contentView.heightAnchor constraintEqualToConstant:topOffset]
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]];
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// Buttons
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UIButton *applyButton = [UIButton buttonWithType:UIButtonTypeSystem];
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[applyButton setTitle:@"应用" forState:UIControlStateNormal];
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applyButton.backgroundColor = [UIColor systemBlueColor];
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[applyButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
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applyButton.layer.cornerRadius = 8;
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[applyButton addTarget:self action:@selector(applyTapped) forControlEvents:UIControlEventTouchUpInside];
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[_containerView addSubview:applyButton];
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// 根据屏幕方向动态调整按钮高度和底部间距
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CGFloat buttonHeight = isLandscape ? 36 : 44; // 横屏时按钮更矮
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CGFloat buttonBottomMargin = isLandscape ? 12 : 20; // 横屏时减小底部边距
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applyButton.translatesAutoresizingMaskIntoConstraints = NO;
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[NSLayoutConstraint activateConstraints:@[
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[applyButton.leadingAnchor constraintEqualToAnchor:_containerView.leadingAnchor constant:20],
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[applyButton.trailingAnchor constraintEqualToAnchor:_containerView.trailingAnchor constant:-20],
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[applyButton.bottomAnchor constraintEqualToAnchor:_containerView.bottomAnchor constant:-buttonBottomMargin],
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[applyButton.heightAnchor constraintEqualToConstant:buttonHeight]
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]];
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// Tap to dismiss
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UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(backgroundTapped:)];
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[self addGestureRecognizer:tap];
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}
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- (void)showInViewController:(UIViewController *)viewController
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withConfig:(AVVideoConfiguration *)config
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fieldsMask:(AVSettingsFieldMask)fieldsMask
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callback:(AVSettingsViewCallback)callback {
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self.callback = callback;
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self.tempConfig = [config copy];
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self.fieldsMask = fieldsMask;
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// Setup UI now that we have fieldsMask
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[self setupUI];
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// Load config values
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if (_streamIdField) {
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// Generate random streamId if empty or default
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if (config.streamId.length == 0 || [config.streamId isEqualToString:@"stream"]) {
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// Generate random 3-digit number (100-999)
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NSInteger randomNumber = 100 + arc4random_uniform(900);
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_streamIdField.text = [NSString stringWithFormat:@"stream%ld", (long)randomNumber];
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// Update the temp config with the generated streamId
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self.tempConfig.streamId = _streamIdField.text;
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} else {
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_streamIdField.text = config.streamId;
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}
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}
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if (_nicknameField) {
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_nicknameField.text = config.nickname;
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}
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if (_resolutionSegment) {
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_resolutionSegment.selectedSegmentIndex = [config currentResolution];
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}
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if (_fpsField) {
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_fpsField.text = [NSString stringWithFormat:@"%ld", (long)config.videoFrameRate];
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}
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if (_maxBitrateField) {
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_maxBitrateField.text = [NSString stringWithFormat:@"%ld", (long)(config.videoBitRate / 1000)];
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}
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if (_minBitrateField) {
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_minBitrateField.text = [NSString stringWithFormat:@"%ld", (long)(config.videoMinBitRate / 1000)];
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}
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self.frame = viewController.view.bounds;
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self.alpha = 0;
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[viewController.view addSubview:self];
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[UIView animateWithDuration:0.3 animations:^{
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self.alpha = 1.0;
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}];
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}
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- (void)dismiss {
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[UIView animateWithDuration:0.3 animations:^{
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self.alpha = 0;
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} completion:^(BOOL finished) {
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[self removeFromSuperview];
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}];
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}
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- (void)applyTapped {
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// Update config with all field values
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if (_streamIdField) {
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self.tempConfig.streamId = _streamIdField.text.length > 0 ? _streamIdField.text : @"";
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}
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if (_nicknameField) {
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self.tempConfig.nickname = _nicknameField.text.length > 0 ? _nicknameField.text : @"test";
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}
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if (_resolutionSegment) {
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[self.tempConfig setResolution:_resolutionSegment.selectedSegmentIndex];
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}
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if (_fpsField) {
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NSInteger fps = [_fpsField.text integerValue];
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// Validate FPS
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if (fps <= 0) {
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fps = 30;
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}
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self.tempConfig.videoFrameRate = fps;
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self.tempConfig.videoMaxKeyframeInterval = fps * 2;
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}
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if (_maxBitrateField) {
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NSInteger maxBitrate = [_maxBitrateField.text integerValue];
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// Validate max bitrate
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if (maxBitrate <= 0) {
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maxBitrate = 2000;
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}
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self.tempConfig.videoBitRate = maxBitrate * 1000; // Convert kbps to bps
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}
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if (_minBitrateField) {
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NSInteger minBitrate = [_minBitrateField.text integerValue];
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// Validate min bitrate
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if (minBitrate <= 0) {
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minBitrate = 500;
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}
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self.tempConfig.videoMinBitRate = minBitrate * 1000; // Convert kbps to bps
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}
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if (self.callback) {
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self.callback(self.tempConfig);
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}
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[self dismiss];
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}
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- (void)backgroundTapped:(UITapGestureRecognizer *)recognizer {
|
||
CGPoint location = [recognizer locationInView:self];
|
||
if (!CGRectContainsPoint(_containerView.frame, location)) {
|
||
// 点击背景关闭弹窗
|
||
[self dismiss];
|
||
} else {
|
||
// 点击容器内部，收起键盘
|
||
[self endEditing:YES];
|
||
}
|
||
}
|
||
|
||
#pragma mark - Keyboard Handling
|
||
|
||
- (void)keyboardWillShow:(NSNotification *)notification {
|
||
NSDictionary *userInfo = notification.userInfo;
|
||
CGRect keyboardFrame = [userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
|
||
CGFloat keyboardHeight = keyboardFrame.size.height;
|
||
NSTimeInterval duration = [userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
|
||
UIViewAnimationCurve curve = [userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
|
||
|
||
// 方案：调整 ScrollView 的 contentInset，而不是移动整个容器
|
||
// 计算键盘遮挡的高度
|
||
CGRect containerFrameInWindow = [_containerView convertRect:_containerView.bounds toView:self];
|
||
CGFloat containerBottom = CGRectGetMaxY(containerFrameInWindow);
|
||
CGFloat keyboardTop = CGRectGetHeight(self.bounds) - keyboardHeight;
|
||
CGFloat overlap = containerBottom - keyboardTop;
|
||
|
||
if (overlap > 0) {
|
||
// 键盘会遮挡容器，调整 scrollView 的 contentInset
|
||
UIEdgeInsets contentInset = _scrollView.contentInset;
|
||
contentInset.bottom = overlap + 20; // 额外留20px边距
|
||
|
||
[UIView animateWithDuration:duration delay:0 options:(curve << 16) animations:^{
|
||
self.scrollView.contentInset = contentInset;
|
||
self.scrollView.scrollIndicatorInsets = contentInset;
|
||
|
||
// 如果有激活的输入框，滚动到可见位置
|
||
if (self.activeTextField) {
|
||
[self scrollToTextField:self.activeTextField];
|
||
}
|
||
} completion:nil];
|
||
}
|
||
}
|
||
|
||
- (void)keyboardWillHide:(NSNotification *)notification {
|
||
NSDictionary *userInfo = notification.userInfo;
|
||
NSTimeInterval duration = [userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
|
||
UIViewAnimationCurve curve = [userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
|
||
|
||
// 恢复 scrollView 的 contentInset
|
||
[UIView animateWithDuration:duration delay:0 options:(curve << 16) animations:^{
|
||
self.scrollView.contentInset = UIEdgeInsetsZero;
|
||
self.scrollView.scrollIndicatorInsets = UIEdgeInsetsZero;
|
||
} completion:nil];
|
||
}
|
||
|
||
- (void)scrollToTextField:(UITextField *)textField {
|
||
// 计算 textField 在 scrollView 中的位置
|
||
CGRect textFieldFrame = [textField convertRect:textField.bounds toView:_contentView];
|
||
|
||
// 添加一些边距，确保输入框上下都有空间
|
||
CGFloat padding = 20;
|
||
CGRect targetRect = CGRectMake(textFieldFrame.origin.x,
|
||
textFieldFrame.origin.y - padding,
|
||
textFieldFrame.size.width,
|
||
textFieldFrame.size.height + padding * 2);
|
||
|
||
// 滚动到目标位置
|
||
[_scrollView scrollRectToVisible:targetRect animated:YES];
|
||
}
|
||
|
||
#pragma mark - Helper Methods
|
||
|
||
- (void)addDoneToolbarToTextField:(UITextField *)textField {
|
||
UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.bounds), 44)];
|
||
toolbar.barStyle = UIBarStyleDefault;
|
||
|
||
UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
|
||
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(doneButtonTapped)];
|
||
|
||
toolbar.items = @[flexSpace, doneButton];
|
||
textField.inputAccessoryView = toolbar;
|
||
}
|
||
|
||
- (void)doneButtonTapped {
|
||
[self endEditing:YES];
|
||
}
|
||
|
||
#pragma mark - UITextFieldDelegate
|
||
|
||
- (void)textFieldDidBeginEditing:(UITextField *)textField {
|
||
self.activeTextField = textField;
|
||
|
||
// 延迟一点点，等键盘动画开始
|
||
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
|
||
[self scrollToTextField:textField];
|
||
});
|
||
}
|
||
|
||
- (void)textFieldDidEndEditing:(UITextField *)textField {
|
||
if (self.activeTextField == textField) {
|
||
self.activeTextField = nil;
|
||
}
|
||
}
|
||
|
||
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
|
||
[textField resignFirstResponder];
|
||
return YES;
|
||
}
|
||
|
||
@end
|