iOS中 MediaPlayer framework实现视频播放 韩俊强的博客

iOS开发中播放音乐可以使用MPMusicPlayerController类来实现，播放视频可以使用MPMoviePlayerController和MPMoviePlayerViewController类来实现，同时MPMediaPickerController
类可以用于从系统媒体库中选择媒体播放。这几个类都包含与MediaPlayer.framework框架中。

这里主要介绍MediaPlayer.framework

指定根视图:

    RootTableViewController *rootTVC = [[RootTableViewController alloc] initWithStyle:UITableViewStylePlain];
    UINavigationController *rootNC = [[UINavigationController alloc] initWithRootViewController:rootTVC];
    self.window.rootViewController = rootNC;

RootTableViewController.m

设置相关属性:

#import "RootTableViewController.h"
#import "TestCell.h"
#import "TestModel.h"
#import "UIImageView+WebCache.h"
#import <MediaPlayer/MediaPlayer.h>

@interface RootTableViewController ()

@property (nonatomic, strong) MPMoviePlayerViewController *mpPVC;

@property (nonatomic, strong) NSMutableArray *dataSourceArray;

@property (nonatomic, strong) NSIndexPath *selectedIndexPath;

@property (nonatomic, assign) CGRect selectedRect;

@end

@implementation RootTableViewController

调用:

- (void)viewDidLoad
{
    [super viewDidLoad];

    [self.tableView registerNib:[UINib nibWithNibName:@"TestCell" bundle:nil] forCellReuseIdentifier:@"testCell"];
    self.dataSourceArray = [NSMutableArray array];

    [self loadDataAndShow];

}

加载网络数据:

- (void)loadDataAndShow
{
    NSURL *url = [NSURL URLWithString:@"http://c.m.163.com/nc/video/list/V9LG4B3A0/y/1-20.html"];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

        if (data != nil) {
            NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
            NSArray *array = dict[@"V9LG4B3A0"];
            for (NSDictionary *aDict in array) {
                TestModel *model = [[TestModel alloc] init];
                [model setValuesForKeysWithDictionary:aDict];
                [self.dataSourceArray addObject:model];
            }

            [self.tableView reloadData];
        } else {
            NSLog(@"%@", [connectionError localizedDescription]);
        }

    }];
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.dataSourceArray.count;
}

返回cell

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    TestCell *cell = [tableView dequeueReusableCellWithIdentifier:@"testCell" forIndexPath:indexPath];
    TestModel *model = self.dataSourceArray[indexPath.row];
    [cell.movieImageView sd_setImageWithURL:[NSURL URLWithString:model.cover]];

    UITapGestureRecognizer *tapGR = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)];
    [cell.movieImageView addGestureRecognizer:tapGR];

    return cell;
}

添加手势:

- (void)tapAction:(UITapGestureRecognizer *)sender
{
    if (self.mpPVC.view) {
        [self.mpPVC.view removeFromSuperview];
    }
    UIView *view = sender.view;
    UITableViewCell *cell = (UITableViewCell *)view.superview.superview;
    NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
    self.selectedIndexPath = indexPath;
    TestModel *model = self.dataSourceArray[indexPath.row];
    self.mpPVC = [[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL URLWithString:model.mp4_url]];

    self.mpPVC.view.frame = CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 370);
    [self.mpPVC.moviePlayer setScalingMode:MPMovieScalingModeAspectFill];
    [self.mpPVC.moviePlayer setControlStyle:MPMovieControlStyleEmbedded];
    [cell addSubview:self.mpPVC.view];

}

返回高:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 370;
}

添加划出屏幕小窗口效果:

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    TestCell *cell = (TestCell *)[self.tableView cellForRowAtIndexPath:self.selectedIndexPath];
    // 当前cell在tableView的坐标
    CGRect rectInTableView = [self.tableView rectForRowAtIndexPath:self.selectedIndexPath];
    CGRect rectInWindow = [self.tableView convertRect:rectInTableView toView:[self.tableView superview]];
    self.selectedRect = CGRectMake(rectInTableView.origin.x, rectInTableView.origin.y, cell.movieImageView.bounds.size.width + 20, cell.movieImageView.bounds.size.height + 20);

    if ([self.mpPVC.moviePlayer isPreparedToPlay]) {
        if (rectInWindow.origin.y <= -370 || rectInWindow.origin.y >= [UIScreen mainScreen].bounds.size.height) {
            [UIView animateWithDuration:.5 animations:^{

                self.mpPVC.view.frame = CGRectMake(self.view.bounds.size.width - 170, self.view.bounds.size.height - 170, 170, 170);
                [self.view.window addSubview:self.mpPVC.view];
                self.mpPVC.moviePlayer.controlStyle = MPMovieControlStyleEmbedded;

            }];
        } else {
            self.mpPVC.view.frame = self.selectedRect;
            [self.tableView addSubview:self.mpPVC.view];
            self.mpPVC.moviePlayer.controlStyle = MPMovieControlStyleDefault;
        }
    }

}

自定义cell

//.h
#import <UIKit/UIKit.h>

@interface TestCell : UITableViewCell

@property (weak, nonatomic) IBOutlet UIImageView *movieImageView;

@end

//.m
- (void)awakeFromNib
{
    self.movieImageView.userInteractionEnabled = YES;
}

cell布局如下

添加model类:

//.h
#import <Foundation/Foundation.h>

@interface TestModel : NSObject

@property (nonatomic, copy) NSString *cover;
@property (nonatomic, copy) NSString *mp4_url;

@end

//.m
- (void)setValue:(id)value forUndefinedKey:(NSString *)key
{

}

最终效果:

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