如何在Android App中屏蔽（拦截）Home按键及其他按键

编写一个Acitivity，如下所示：

关键点1：屏蔽HOME按键，在onAttachedToWindow中设置FLAG_HOMEKEY_DISPATCHED

关键点2：屏蔽除Power , Home外的按键，覆盖dispatchKeyEvent方法，并返回为true

public class LockByKeyGuard extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

@Override

public void onAttachedToWindow() {

//关键：在onAttachedToWindow中设置FLAG_HOMEKEY_DISPATCHED

this.getWindow().addFlags(WindowManager.LayoutParams. FLAG_HOMEKEY_DISPATCHED);

super.onAttachedToWindow();

}



@Override

public boolean dispatchKeyEvent(KeyEvent event) {

// 返回true，不响应其他key

return true;

}