菜单或“警报对话框”弹出时如何禁用主页键？

Question

How to disable the home key when the menu or Alarm Dialog pop up? I know how to disable the home key in the activity. But when the menu or Alarm Dialog pop up, the way is invalid. How to implement this function. Or is there no way to deal with this case?

Answer 1

You can not disable Home Key . for this is the last chance the Android System ESCAPE the application.

Answer 2

I had the same requirement in my project. Here is my solution:

1) You should have a rooted device.

2) Make sure that your activity is main activity, it should have params like these:

<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.DEFAULT" />

If you have it, when you tap home button android suggest you other apps except Launcher...

3) Next, since we have rooted device, just find and rename Launcher.apk to LauncerBBB.apk(it can be done programmatically even).

4) That's all. Now only your app is main and it will be shown by Home key tap.

PS If you need to have an access to Launcher you can start LauncerBBB activity from secret menu of your application.