Android Studio New project inherits appcompatactivity settings hide title bar also flash back

Originally to do cocos2d-x development, but in the company after some Android SDK also slowly began to contact Android. It is said that Google started not supporting Eclipse ADT, do not know if it is true. Running this news I tried the next, this software. Cocos Studio is very CPU-intensive i5 means a bit too much, and memory is still there. The editing function is also very powerful.

A new project has been created, and it is found that the new normal Android project is not a succession of activity but a layer more. It inherits Appcompatactivity and Appcompatactivity inherits the activity according to the principle of inheritance. They should be no different. But when I go to set hidden under the title bar, I find that there is a flashback phenomenon. Asked a lot of people, the answer is basically not inherit appcompatactivity directly inherit activity to do so. In fact, it is possible to do so. I was wondering if there was a way not to change it. I've been trying to figure out

The original code was used

This.requestwindowfeature (Window.feature_no_title);

This is going to be a flashback in this case. This is caused by the use of the actionbaractivity under the APPCOMPAT_V7 package .

At the beginning we can also see this line of code

import android.support.v7.app.AppCompatActivity;

So we're going to use

Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
Getsupportactionbar (). Hide ();

To set the title bar.

Android Studio New project inherits appcompatactivity settings hide title bar also flash back