Android studio 1按鈕2事件

Question

我有一個ImageView作爲按鈕。我想要它，如果我點擊它，播放聲音並切換到另一個活動。單憑它完美的作品，但我不能混合它們，它只能播放聲音或切換活動。 活動開關代碼：

public void imagebutton (View v) { 
    Intent startNewActivity = new Intent(this, NewActivity.class); 
    startActivity(startNewActivity); 
} 

和聲音代碼：

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    final MediaPlayer sound = MediaPlayer.create(this, R.raw.clicksound); 

    ImageView click = (ImageView) findViewById(R.id.imagebutton); 

    click.setOnClickListener(new View.OnClickListener() 

          { 
           @Override 
           public void onClick (View v){ 
            sound.start(); 
           } 
          } 
    ); 

感謝。

Answer 1

嘗試這樣，

click.setOnClickListener(new View.OnClickListener() 
    { 
     @Override 
     public void onClick (View v){ 
      sound.start(); 
      Intent startNewActivity = new Intent(MainActivity.this, NewActivity.class); 
      startActivity(startNewActivity); 
     } 
    } 
); 

還要檢查.NewActivity在你的manifest.xml

Answer 2

把你的代碼開始練習下sound.start();

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    final MediaPlayer sound = MediaPlayer.create(this, R.raw.clicksound); 

    ImageView click = (ImageView) findViewById(R.id.imagebutton); 

    click.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick (View v){ 
      sound.start(); 
      Intent startNewActivity = new Intent(this, NewActivity.class); 
      startActivity(startNewActivity); 
     } 
    } 
); 

Answer 3

您可以實現的AsyncTask重現你的聲音之前，開始你的新活動。

public class BackgroundSound extends AsyncTask<Void, Void, Void> { 
    @Override 
    protected Void doInBackground(Void... params) { 
     MediaPlayer player = MediaPlayer.create(this, R.raw.clicksound); 
     player.setLooping(true); // Set looping if you want 
     player.setVolume(100,100); // Set Volume if you want 
     player.start(); 
     return null; 
    } 
} 

並使用像這樣：BackgroundSound.execute（）;在開始新活動之前。

Answer 4

可以使用setOnCompletionListener以確保聲音已經結束，然後開始新的活動：

final MediaPlayer sound = MediaPlayer.create(this, R.raw.clicksound); 
     sound.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { 
      @Override 
      public void onCompletion(MediaPlayer mp) { 
       Intent startNewActivity = new Intent(this, NewActivity.class); 
       startActivity(startNewActivity); 
      } 
     }); 
     ImageView click = (ImageView) findViewById(R.id.imagebutton); 
     click.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick (View v){ 
       sound.start(); 
      } 
     }