Your oncreate should be like this
@Override protected void onCreate(Bundle savedInstanceState) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { Window w = getWindow(); w.addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS); w.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION); } super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); }
The layout file should be like this.
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#fff" tools:context="sslwireless.com.testfullscreen.MainActivity"> <LinearLayout android:orientation="horizontal" android:background="@drawable/gradient" android:layout_width="match_parent" android:layout_height="100dp"> <ImageView android:layout_gravity="center_vertical" android:src="@drawable/ic_arrow_back_white_24dp" android:layout_marginLeft="10dp" android:layout_width="35dp" android:layout_height="35dp" /> <TextView android:layout_gravity="center_vertical" android:textSize="25sp" android:gravity="center_horizontal" android:textColor="#fff" android:text="Test Title" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout> </RelativeLayout>
And the gradient file looks like this.
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <gradient android:angle="135" android:startColor="#f56f2c" android:endColor="#fa9f46"/> </shape>
ui will look like this.

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