Yanzhikai

增加sample里面申请动态权限

``` Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window android.app.Activity.getWindow()' on a null object reference at com.wizchen.topmessage.TopMessage.createView(TopMessage.java:108) at com.wizchen.topmessage.TopMessageManager.showWarning(TopMessageManager.java:362) at com.wizchen.topmessage.TopMessageManager.showWarning(TopMessageManager.java:278) at com.wizchen.topmessage.TopMessageManager.showWarning(TopMessageManager.java:267) ```

It seems that the lib of demo is different from the newest version.

2

Is there something different between them? For example,this is a method in AlexaManager.java of the Demo: ``` public void sendPlaybackStartedEvent(AvsItem item, long milliseconds, final AsyncCallback callback); ``` And the in...

个人感觉，如果把EmptyLayout作为根View是不是对原来的布局代码影响太大？只是把它做成一个遮罩层不是更加方便吗？