Android Studio No title bar

Android Studio top bar

官方 status bar

• Hide the Status Bar on Android 4.0 and Lower
• Hide the status bar

AndroidManifest

<application
    ...
    android:theme="@android:style/Theme.Holo.NoActionBar.Fullscreen" >
    ...
</application>

MainActivity

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // If the Android version is lower than Jellybean, use this call to hide
        // the status bar.
        if (Build.VERSION.SDK_INT < 16) {
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
        }
        setContentView(R.layout.activity_main);
    }
    ...
}

Custom style

<style name="AppTheme.NoActionBar" parent="AppTheme">
    <!-- title  -->
    <item name="windowNoTitle">true</item>
    <!-- action bar  -->
    <item name="windowActionBar">false</item>
        <item name="windowActionBarOverlay">true</item>
    <!-- top status bar  -->
        <item name="android:windowTranslucentStatus">true</item>
    <item name="android:windowFullscreen">true</item>
</style>

statusBarColor

API < 21

<item name="android:statusBarColor">#60FFEB3B</item>

Window window = this.getWindow();
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
window.setStatusBarColor(ContextCompat.getColor(this,R.color.windowStatusColor));