同時點擊兩個按鈕的問題

Question

我有3個活動。 在activity_Second當用戶單擊button_right時，activity_Second將銷燬並啓動activity_Third; again在activity_Second中，當用戶單擊button_left時，activity_Second將銷燬並啓動activity_First。

每件事情都正常工作，直到用戶同時點擊兩個按鈕，然後爆炸，應用程序崩潰。 爲什麼會發生這種情況，我該如何解決這個問題。

注意：我需要銷燬activity_Second，因爲它獲得了一些媒體播放器，並因此產生了很多空間，我需要釋放內存。

這裏是activity_Second Java代碼：

public class Second extends Activity implements OnClickListener{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.second); 

     right = new Intent(getApplicationContext(), Third.class); 
     left = new Intent(getApplicationContext(), First.class); 
     ImageView button_left = (ImageView) findViewById(R.id.button_left); 
     ImageView button_right = (ImageView) findViewById(R.id.button_right); 

     button_left.setOnClickListener(this); 
     button_right.setOnClickListener(this); 

    } 
    @Override 
    public void onClick(View item) { 
     if(item.getId() == R.id.button_left) 
     { 
      left.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
      startActivity(left); 
      this.onDestroy(); 
     } 
     else if(item.getId() == R.id.button_right) 
     { 
      right.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
      startActivity(right); 
      this.onDestroy(); 
     } 
    } 
} 

Answer 1

嘗試這樣可以幫助你，

public class Second extends Activity implements OnClickListener{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.second); 

     ImageView button_left = (ImageView) findViewById(R.id.button_left); 
     ImageView button_right = (ImageView) findViewById(R.id.button_right); 

     button_left.setOnClickListener(this); 
     button_right.setOnClickListener(this); 

    } 
    @Override 
    public void onClick(View item) { 
     if(item.getId() == R.id.button_left) 
     { 
      Intent left = new Intent(Second.this, First.class); 
      left.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
      startActivity(left); 

      finish(); 
     } 
     else if(item.getId() == R.id.button_right) 
     { 
      Intent right = new Intent(Second.this, Third.class); 
      right.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
      startActivity(right); 

      finish(); 
     } 
    } 
}