在相应的Activity中加入：
public void onAttachedToWindow()
{ this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD); super.onAttachedToWindow();
}
下面是FRAMWORK层的代码，里面的type == WindowManager.LayoutParams.TYPE_KEYGUARD条件是返回FALSE
if (code == KeyEvent.KEYCODE_HOME) {// If a system window has focus, then it doesn't make sense// right now to interact with applications.WindowManager.LayoutParams attrs = win != null ? win.getAttrs() : null;if (attrs != null) {final int type = attrs.type;if (type == WindowManager.LayoutParams.TYPE_KEYGUARD|| type == WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG) {// the "app" is keyguard, so give it the keyreturn false;}final int typeCount = WINDOW_TYPES_WHERE_HOME_DOESNT_WORK.length;for (int i=0; i<typeCount; i++) {if (type == WINDOW_TYPES_WHERE_HOME_DOESNT_WORK[i]) {// don't do anything, but also don't pass it to the appreturn true;}}} 本文链接：https://my.lmcjl.com/post/12996.html
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