如何在MPMoviePlayerController中更改「正在加載Movie ...」消息？

Question

當我爲遠程URL啓動MPMoviePlayerController的一個實例時，頂部欄顯示「Loading Movie ...」 - 是否有方法將此消息更改爲自定義消息？

Answer 1

您可以簡單地創建一個帶有想要顯示的圖像的UIImageView（或標籤或任何其他），並將其添加到您的MoviePlayerControllerView。

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然後你就可以實例化的電影播放和註冊時收到通知LoadState的變化：

moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:movie.trailerURL]; 

if ([moviePlayer respondsToSelector:@selector(loadState)]) { 

     [moviePlayer prepareToPlay]; 

     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerLoadStateChanged:) name:MPMoviePlayerLoadStateDidChangeNotification object:moviePlayer];} 

然後在您的通知方法，執行邏輯給玩家添加到視圖：

- (void) moviePlayerLoadStateChanged:(NSNotification*)notification 
{ 
    // Unless state is unknown, start playback 
    switch ([moviePlayer loadState]) { 
     case MPMovieLoadStateUnknown: 
      break; 
     case MPMovieLoadStatePlayable: 
      // Remove observer 
      [[NSNotificationCenter defaultCenter] 
      removeObserver:self 
      name:MPMoviePlayerLoadStateDidChangeNotification 
      object:nil]; 

      // Set frame of movie player 
      [moviePlayer.view setFrame:CGRectMake(0, 0, 480, 320)]; 
      [moviePlayer setControlStyle:MPMovieControlStyleFullscreen]; 
      [moviePlayer setFullscreen:YES animated:YES]; 
      [self.view addSubview:[moviePlayer view]]; 

      // Play the movie 
      [moviePlayer play]; 
         ... 
}