Android 軟體退出系統方法重寫

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Android 軟體退出系統按鍵方法重寫

 

 1     //針對Andriod軟體退出系統按鍵方法重寫 2  3     private long exitTime = 0;//key down time 4     @Override 5     public boolean onKeyDown(int keyCode, KeyEvent event) { 6         switch (keyCode) { 7             case KeyEvent.KEYCODE_BACK: 8                 if (System.currentTimeMillis() - exitTime >= 2000) { 9                     exitTime = System.currentTimeMillis();10                     showToast(getString(R.string.quit_on_double_click_));11                     return true;12                 } else {13                     showToast(getString(R.string.exiting));14                     try {15                         Thread.sleep(1000);16                     } catch (InterruptedException e) {17                         e.printStackTrace();18                     }19                     finish();20                 }21                 break;22         }23         return super.onKeyDown(keyCode, event);24     }

 

Android 軟體退出系統方法重寫