full screen.

app/src/main/java/com/github/tvbox/osc/base/BaseActivity.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.res.AssetManager;
 import android.content.res.Resources;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Looper;
 import android.view.View;
@@ -43,6 +44,25 @@ public abstract class BaseActivity extends AppCompatActivity {
         init();
     }
 
+    @Override
+    protected void onResume() {
+        super.onResume();
+        hideSysBar();
+    }
+
+    private void hideSysBar() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            int uiOptions = getWindow().getDecorView().getSystemUiVisibility();
+            uiOptions |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
+            uiOptions |= View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
+            uiOptions |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
+            uiOptions |= View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
+            uiOptions |= View.SYSTEM_UI_FLAG_FULLSCREEN;
+            uiOptions |= View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
+            getWindow().getDecorView().setSystemUiVisibility(uiOptions);
+        }
+    }
+
     @Override
     public Resources getResources() {
         if (Looper.myLooper() == Looper.getMainLooper()) {