android Q content above navigation bar

问题

we are targeting our application at api 28 and draw content under status bar , for this we are using following flag and styles :

window.addFlags(FLAG_LAYOUT_NO_LIMITS)

---

<item name="windowNoTitle">true</item>
<item name="android:windowTranslucentStatus">true</item>
<item name="android:windowTranslucentNavigation">false</item>
<item name="android:windowDrawsSystemBarBackgrounds">false</item>

everything is okay under Q ( content lay out under status bar and above navigation bar). In android Q , navigation bar is translucent and show over the application content

回答1:

the "problem" underlies the behavior of the FLAG_LAYOUT_NO_LIMITS, mixed with the new gesture functionality in api 29

https://medium.com/androiddevelopers/gesture-navigation-going-edge-to-edge-812f62e4e83e https://medium.com/androiddevelopers/gesture-navigation-handling-visual-overlaps-4aed565c134c

a little solution is:

window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
window.statusBarColor = Color.TRANSPARENT

and don't set

android:fitsSystemWindows
android:windowTranslucentStatus
android:windowIsTranslucent

回答2:

You should this to you main activity

    view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
    view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);

and then create a new styles.xml file for v29

<?xml version="1.0" encoding="utf-8"?>
<resources>
  <!-- values-v29/themes.xml -->
  <style name="AppTheme"
      parent="Theme.AppCompat.Light">
      <item name="android:navigationBarColor">
          @android:color/black
      </item>

      <!-- Optional, if drawing behind the status bar too -->
      <item name="android:statusBarColor">
          @android:color/black
      </item>
  </style>
</resources>

source: https://medium.com/androiddevelopers/gesture-navigation-going-edge-to-edge-812f62e4e83e

来源：https://stackoverflow.com/questions/57784715/android-q-content-above-navigation-bar