如何像锁定屏幕应用程序一样在Android中禁用主页按钮? [英] How to disable home button in Android like lock screen apps do?
问题描述
我知道这个问题已经问过很多次了,但是我发现所有解决方案都没有用. 我尝试了下面给出的代码...
I know this question is asked many times but I found that none of the solution is working. I tried the code given below...
protected void onPause() {
super.onPause();
Intent intent = new Intent(this,LockActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT |Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
它的作用是,当启动Android主屏幕时,它将当前活动重新显示在最前面,但是当启动主屏幕时,将活动重新显示在前面需要将近3-4秒.
What it does is that it bring the current activity again to front when android home screen is launched but it takes almost 3-4 seconds to bring activity againt to front when home screen is launched.
我使用了一些锁定屏幕应用程序,这些应用程序甚至在单击主页"按钮时都无法启动主屏幕.我想实现这样的目标.
I have used some lock screen apps which don't even start the home screen when home button is clicked. I want to achieve something like that.
我也使用过onUserLeavesHint方法,onKeyDown方法和onKeyDispatch方法,但是它们都不适合我.
I have also used onUserLeavesHint method, onKeyDown method and onKeyDispatch method but none of them worked for me.
并且请勿回答或发表评论,因为无法在Android中禁用主页"按钮.对于此类答案或评论,我建议您通过PlayStore上的一些锁屏应用程序.我也在github上找到了一个可以正常工作的应用程序以及源代码.它可以在我的手机上运行,并且该应用程序使用了disableKeyguard,但是当我在应用程序中执行相同操作时,它不起作用(disableKeyguard已弃用,但我使用@supress warnings("deprecation")).
And please don't answer or comment like it is not possible to disable home button in Android. For such answers or comments I would suggest you to go through some Lock Screen apps on PlayStore. Also I found a working app on github along source code. It was working on my phone and the app used disableKeyguard but when I do the same in my app it doesn't work (disableKeyguard is deprecated but I use @supress warnings("deprecation")).
推荐答案
源- https://github.com/shaobin0604/Android-HomeKey-Locker
//Copy this class
public class HomeKeyLocker {
private OverlayDialog mOverlayDialog;
public void lock(Activity activity) {
if (mOverlayDialog == null) {
mOverlayDialog = new OverlayDialog(activity);
mOverlayDialog.show();
}
}
public void unlock() {
if (mOverlayDialog != null) {
mOverlayDialog.dismiss();
mOverlayDialog = null;
}
}
private static class OverlayDialog extends AlertDialog {
public OverlayDialog(Activity activity) {
super(activity, R.style.OverlayDialog);
WindowManager.LayoutParams params = getWindow().getAttributes();
params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
params.dimAmount = 0.0F; // transparent
params.width = 0;
params.height = 0;
params.gravity = Gravity.BOTTOM;
getWindow().setAttributes(params);
getWindow().setFlags( WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, 0xffffff);
setOwnerActivity(activity);
setCancelable(false);
}
public final boolean dispatchTouchEvent(MotionEvent motionevent) {
return true;
}
protected final void onCreate(Bundle bundle) {
super.onCreate(bundle);
FrameLayout framelayout = new FrameLayout(getContext());
framelayout.setBackgroundColor(0);
setContentView(framelayout);
}
}
}
//Paste this in your activity
mHomeKeyLocker = new HomeKeyLocker();
mHomeKeyLocker.lock(this);
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