用QLPreviewController预览图片视频

来源：互联网发布：新浪微博数据抓取编辑：程序博客网时间：2024/06/11 09:55

在IM项目中，要对接收到的文件进行预览，用QLPreviewController可以预览图片视频等文件。

- (void)openFileWithFilePath:(NSString *)filePath{    NSURL *URL = [NSURL fileURLWithPath:filePath];    if (URL) {        [_preItemArr removeAllObjects];        [_preItemArr addObject:filePath];        QLPreviewController *myQlPreViewController = [[QLPreviewController alloc]init];        myQlPreViewController.delegate =self;        myQlPreViewController.dataSource =self;        [myQlPreViewController setCurrentPreviewItemIndex:0];        [self presentViewController:myQlPreViewController animated:YES completion:nil];    }}#pragma mark -#pragma mark - QLPreviewController- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller{    return 1;}- (id<QLPreviewItem>)previewController:(QLPreviewController *)controller previewItemAtIndex:(NSInteger)index{    return [NSURL fileURLWithPath:[self.preItemArr objectAtIndex:index]];}

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