2013-12-10 45 views

回答

3

要覆盖Menu按钮,你可以用下面的代码去..

public void makeContextMenu(ContextMenu contextMenu) { 
    // Write your code here. 
} 

要覆盖Back按钮有两个选项覆盖close()方法以及覆盖keyDown(int keycode, int time)方法

1 。的keyDown(INT键码,INT时间)

protected boolean keyDown(int keycode, int time) { 
    int key = Keypad.key(keycode); 
    if (key == Characters.ESCAPE) { 
     // do something here 
     return true; 
    } 
    return super.keyDown(keycode, time); 
} 

2.关闭()

public boolean onClose() { 
    if (someCondition) { 
     // do something 
     return false; 
    } else 
     return super.onClose(); 
}