How to hide status bar in Android

I referred this link. In that if the user clicks on EditText(for ex To: ) at that time keyboard will be popped out and at the same time the user can be able to scroll to see all remaining views(ex: compose,subject, send button) in that screen. Similarly in my app I have one activity in that I am having some widgets or views. Suppose if the user clicks on Edittext which is in my Activity then keyboard is popping out and i can be able to scroll to see remaining views. But if i give this attribute android:theme="@android:style/Theme.NoTitleBar.Fullscreen" in manifest i was unable to scroll to see remaining views but if give attribute android:theme="@android:style/Theme.NoTitleBar" like this in manifest I can be able to scroll to see remaining view but there is status bar in that screen, here I want full screen and even if the keyboard is popped out I can scroll to see remaining views..? what changes I have to made for this..?

Solution 1:

Write this in your Activity

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
}

Check Doc here : https://developer.android.com/training/system-ui/status.html

and your app will go fullscreen. no status bar, no title bar. :)

Solution 2:

Use theme "Theme.NoTitleBar.Fullscreen" and try setting "android:windowSoftInputMode=adjustResize" for the activity in AndroidManifest.xml. You can find details here.