Notes

Ujnotes — CC0 1.0

The system wide bar with clock and network icons.

Status bar

The system wide bar with clock and network icons.

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

Title bar

The one with app title.

• Primitive.

Action bar

To indicate where in app.

Navigation button (Up).

Contextual menu (three vertical dots).

Hide title bar.

RequestWindowFeature(Window.FEATURE_NO_TITLE);.

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

WindowManager.LayoutParams.FLAG_FULLSCREEN);.

Hide status.

Prevent rotation.

Android:screenOrientation="portrait".

For Activity - ApplicationManifest.