2015-10-24 100 views
0

我對Google的Android編碼非常新穎。Android - 在按鈕上播放隨機聲音點擊

目前我正在用一個按鈕編程一個小應用程序。如果你點擊它,它會播放隨機聲音。但是:D ......它在每一次開始時發出聲音。但是如果你經常按下按鈕,不會有隨機的聲音。

我不知道我的錯誤在哪裏。

下面是代碼(不要笑!):

public class MainActivity extends Activity { 

    //MediaPlayer 
    MediaPlayer mp; 
    ImageButton soundbutton; 

    //Sounds 
    int[] sounds={R.raw.s1, R.raw.s2, R.raw.s3, R.raw.s4, R.raw.s5, R.raw.s6, R.raw.s7, R.raw.s8, R.raw.s9, R.raw.s10}; 
    Random r = new Random(); 
    int Low = 0; 
    int High = 10; 
    int rndm = r.nextInt(High-Low) + Low; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
     requestWindowFeature(Window.FEATURE_NO_TITLE); 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 
     setContentView(R.layout.activity_main); 

     //MediaPlayer 
     soundbutton = (ImageButton)this.findViewById(R.id.randomsoundbutton89); 
     mp = MediaPlayer.create(getApplicationContext(),sounds[rndm]); 
     soundbutton.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       try { 
        if (mp.isPlaying()) { 
         mp.stop(); 
         mp.release(); 
         mp = MediaPlayer.create(getApplicationContext(),sounds[rndm]); 
        } 
        mp.start(); 
       } catch (Exception e) { 
        e.printStackTrace(); 
       } 
      } 
     }); 
    } 
} 

幫助! (來自德國)!

+1

移動'RNDM = r.nextInt(從高到低)+ Low'分配到'的onClick()'方法中。否則,它只是重複使用相同的號碼。 –

+0

它的工作,該死的罰款,謝謝你! – Jonathan

回答

0

使用此代碼來獲得不同的聲音

@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
requestWindowFeature(Window.FEATURE_NO_TITLE); 
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 
setContentView(R.layout.activity_main); 

//MediaPlayer 
soundbutton = (ImageButton)this.findViewById(R.id.randomsoundbutton89); 
mp = MediaPlayer.create(getApplicationContext(),sounds[rndm]); 
soundbutton.setOnClickListener(new View.OnClickListener() { 
    @Override 
    public void onClick(View v) { 
     try { 
      if (mp.isPlaying()) { 
       mp.stop(); 
       mp.release(); 
       rndm = r.nextInt(High-Low) + Low; 
       mp = MediaPlayer.create(getApplicationContext(),sounds[rndm]); 
      } 
      mp.start(); 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 
}); 

}