When using ActionMode, the status bar turns black

问题:

I have a status bar with the following in the theme set on it:

<!-- Base Theme for all "Material"-esque styles. We use NoActionBar
     so we can use the Toolbar at runtime.
-->
<style name="Material" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
    <item name="android:windowTranslucentStatus">true</item>
    ...
</style>

I also have a DrawerLayout for most of my activities, which sets the color of the status bar to my liking using:

    mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.myapp_green));

I am using a Toolbar, rather than the default ActionBar, so it exists in my layout (i.e. the navigation drawer draws on top of it).

Everything works fine, except that in one of my activities, I have a multi-select mode with an ActionMode. When this ActionMode is activated (using a long press), it overlays the Toolbar using:

<item name="android:windowActionModeOverlay">true</item>
<item name="windowActionModeOverlay">true</item>
<item name="actionModeStyle">@style/Material.Widget.ActionMode</item>

The Material.Widget.ActionMode style is:

<style name="Material.Widget.ActionMode" parent="@style/Widget.AppCompat.ActionMode">
    <item name="android:background">@color/myapp_green</item>
    <item name="background">@color/myapp_green</item>
</style>

Now, the problem is that, whenever this happens, the status bar turns from the myapp_green color to black. It's almost as if the status bar translucency is turned off (I'm using Android 5.0). I'm wondering how I might be able to get this behavior to not happen, and to keep the status bar color/translucency as-is.

I've tried to add <item name="android:windowTranslucentStatus">true</item> to the action mode's styles, as well as adding <item name="android:statusBarColor">@color/myapp_green</item> in the style for the ActionMode, both without success.

Update:

I wonder if this has something to do with the wonky way that I'm setting the status bar background. All of my Activity classes derive from NavigationDrawerActivity.java:

/**
 * An {@link Activity} that supports a Navigation Drawer, which is a pull-out panel for navigation
 * menus. This drawer is pulled out from the left side of the screen (right side on RTL devices).
 */
public class NavigationDrawerActivity extends ActionBarActivity
  implements AdapterView.OnItemClickListener {

  private static final String LOGTAG = NavigationDrawerActivity.class.getSimpleName();

  private DrawerLayout mDrawerLayout;
  private ListView mDrawerList;
  private LayoutInflater mInflater;
  private NavigationDrawerItemAdapter mAdapter;
  private ActionBarDrawerToggle mDrawerToggle;

  private NavigationDrawerItem[] mNavigationDrawerItems;

  private Toolbar mAppBar;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
// We have to call super.setContentView() here because BaseActivity redefines setContentView(),
// and we don't want to use that.
super.setContentView(R.layout.navigation_drawer);

mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    setupNavigationDrawer();
  }

  @Override
  protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);

    // Sync the toggle state after onRestoreInstanceState has occurred.
    mDrawerToggle.syncState();
  }

  @Override
  public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    switch(id) {
      case android.R.id.home:
        return mDrawerToggle.onOptionsItemSelected(item);
    }

    return super.onOptionsItemSelected(item);
  }

  /**
   * Toggles the state of the navigation drawer (i.e. closes it if it's open, and opens it if
   * it's closed).
   */
  public void toggleNavigationDrawer() {
    if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
      closeNavigationDrawer();
    } else {
      openNavigationDrawer();
    }
  }

  /**
   * Opens the navigation drawer.
   */
  public void openNavigationDrawer() {
    mDrawerLayout.openDrawer(GravityCompat.START);
  }

  /**
   * Closes the navigation drawer.
   */
  public void closeNavigationDrawer() {
    mDrawerLayout.closeDrawer(GravityCompat.START);
  }

  /**
   * Initializes items specific to the navigation drawer.
   */
  private void setupNavigationDrawer() {
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.wiw_green));

        mAppBar = (Toolbar) findViewById(R.id.app_bar);
        setSupportActionBar(mAppBar);

        ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setHomeButtonEnabled(true);
        actionBar.setDisplayShowHomeEnabled(false);

        mDrawerToggle = new ActionBarDrawerToggle(
          this,                  /* Our context (Activity that hosts this drawer) */
          mDrawerLayout,         /* The DrawerLayout where the nav drawer will be drawn */
          R.string.drawer_open,  /* Description of "open drawer", for accessibility */
          R.string.drawer_close  /* Description of "close drawer", for accessibility */
        ) {

          /**
           * Called when a drawer has settled in a completely closed state.
           */
          public void onDrawerClosed(View view) {
            super.onDrawerClosed(view);
            supportInvalidateOptionsMenu();
          }

          /**
           * Called when a drawer has settled in a completely open state.
           */
          public void onDrawerOpened(View drawerView) {
            super.onDrawerOpened(drawerView);
            supportInvalidateOptionsMenu();
          }
        };

        mDrawerList = (ListView) mDrawerLayout.findViewById(R.id.drawer_list);

        mNavigationDrawerItems = buildNavDrawerItemsList();

        setupAdapter(mNavigationDrawerItems);

        setupNavigationDrawerHeader();

        mDrawerLayout.setDrawerListener(mDrawerToggle);
        mDrawerList.setOnItemClickListener(this);
      }

      @Override
      public void onItemClick(AdapterView<?> parent, View aView, int aPosition, long aId) {
        // Code not relevant
      }

      /**
       * Set the inner content view of this {@link NavigationDrawerActivity} to have a given layout.
       *
       * @param aLayoutId The id of the layout to load into the inner content view of this activity.
       */
      public void setDrawerContent(int aLayoutId) {
        LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        ViewGroup root = (ViewGroup)findViewById(R.id.drawer_content);
        inflater.inflate(aLayoutId, root);
      }  
    }

I actually have to run DrawerLayout.setStatusBarBackgroundColor() for it to have an effect. Just changing colorPrimaryDark in values-v21/styles.xml has no effect on the status bar. I feel like this could be the root of the problem... These classes are being converted from a non-Material theme to a new, Material-like theme, so I'm wondering if I missed something when I did the conversion to the colorPrimaryDark to be recognized correctly.

回答1:

I'm posting an answer here because, while the other solutions were helpful, none of them answered the question exactly. I was able to find out that the call to DrawerLayout.setStatusBarBackgroundColor() was causing the trouble. My solution is the following:

1. Enable windowTranslucentStatus and windowDrawsSystemBarBackgrounds in the main theme.
2. Remove the call to DrawerLayout.setStatusBarBackgroundColor() inside of my NavigationDrawerActivity, from which all Activity classes derive.
3. Set the following styles in my values-v21/styles.xml base theme:

        @color/app_green
        @color/app_green
        @color/app_green_dark
        @color/app_green_dark
        ?attr/colorPrimaryDark
        ?attr/colorPrimaryDark

4. Inside of the NavigationDrawerActivity class, in its onCreate() method, I execute the following (thanks @Tinadm for this part of the answer): getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);

5. Inside of my class that presents the ActionMode, I added the following methods:

    @Override
    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        getActivity().getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        // This is to highlight the status bar and distinguish it from the action bar,
        // as the action bar while in the action mode is colored app_green_dark
        getActivity().getWindow().setStatusBarColor(getResources().getColor(R.color.app_green_darker));
      }

      // Other stuff...
      return true;
    }

    @Override
    public void onDestroyActionMode(ActionMode mode) {
      mActionMode = null;
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        getActivity().getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        getActivity().getWindow().setStatusBarColor(getResources().getColor(R.color.app_green_dark));
      }
    }

Re-enabling the translucent status bar when the ActionMode is destroyed enables my navigation drawer to be drawn underneath the status bar. It's also worth noting that the ActionMode overlays the action bar, so it will overlay the navigation drawer if it's pulled out when the ActionMode is enabled (via swiping left-to-right). I am going to disable this functionality when the ActionMode is enabled, so it doesn't confuse users.

回答2:

well your temporary solution is call this code when you most need it or when the problem starts

if(Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP){
    getWindow().setStatusBarColor(Color.BLUE); 
    // or Color.TRANSPARENT or your preferred color
}

EDIT

have you tried this

// actionMode.getCustomView().setBackgroundColor.(Color.TRANSPARENT);

@Override
public boolean onPrepareActionMode(ActionMode actionMode, Menu menu) {    
    //but this time you let the actionmode's view change the statusbar's
    // visibility
    actionMode.getCustomView().setSystemUiVisibility(
        View.SYSTEM_UI_FLAG_LOW_PROFILE); //or preferred one
    return true;
}

when your actionMode is destroyed, the status bar will be restored, so override that too and re-set your statusBar color.

hope it helps

回答3:

I ran into the same problem a while ago and my resolution was to in onCreateActionMode & onDestroyActionMode set and restore the statusbar color.

//onCreateActionMode
mStartColor =  activity.getWindow().getStatusBarColor();
getWindow().setStatusBarColor(color);

//onDestroyActionMode
activity.getWindow().setStatusBarColor(mStartColor);

Of course youll need to check that its on lolipop before using the setStatusBarColor method as its not available pre L.

Extra: If you use a DrawerLayout youll need to set the statusBarColor on it too.

mDrawerLayout.setStatusBarBackground(new ColorDrawable(color));

Hope that helps!

回答4:

I was having the exactly same issue as you. I managed to solve it using a workaround.

1. The first thing I did was to remove windowTranslucentStatus=true from my theme;
2. Then I used getWindow().getDecorView().setSystemUiVisibility( View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN); to make the content fill the area under the status bar.
3. I set <item name="android:colorPrimaryDark">@color/primary_dark</item> where primary_dark is "#51000000". Note the alpha value to achieve the same trasparency that windowTranslucent provides. Since my Toolbar is blue, my status bar is now dark blue.

4. This alone did not solve the problem. When action mode is active, the status bar was still black in my case. But now, not using translucentStatusBar, I'm able to apply colors to my status bar, so I used:

   @Override
   public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
       getActivity().getWindow().setStatusBarColor(Color.parseColor("#026592"));
       return true;
   }
   

(Note that the color I used does not have alpha. This is the RGB color the exactly matches my dark blue semi transparent status bar).

回答5:

Looking through the Android documentation on Translucent system bars

If you're creating a custom theme, set one of these themes ( Theme.Holo.NoActionBar.TranslucentDecor and Theme.Holo.Light.NoActionBar.TranslucentDecor) as the parent theme or include the windowTranslucentNavigation and windowTranslucentStatus style properties in your theme.

So if you are using the Support Libraries, your style must extend some of the AppCompat styles and use both windowTranslucentNavigation and windowTranslucentStatus on your ActionBarStyle.

回答6:

The problem might be here.

<item name="android:background">@color/myapp_green</item>
<item name="background">@color/myapp_green</item>

"android:background" is a proper syntax, I don't think "background" is. Why do you need to specify the background color twice anyway? Remove the second one and it should be fine. If not, then I hope my 2 cents below on the subject of setBackgroundColor methods help.

$0.02

In my experience, I have found that from time to time setBackgroundColor() method in Android behave strangely. When that happens, I use setBackground() instead, and specify the color in a drawable form: getResources().getDrawable(R.color.xxxx). I never found out why this resolved similar problems I've had in the past, but I've used this workaround so far without any obvious side effects. It might not be the best solution (especially if you're already setting a background drawable), but it comes in handy when nothing else seems to work.

回答7:

I got the same issue and I resolved it in the following way

The issue was with overriding the same color for all views.But I's not able to go with R.color.mycolor and Color.parseColor("#412848") saved me.

回答8:

    @Override
    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
        super.onPrepareActionMode(mode, menu);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window w = getActivity().getWindow();
            w.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            w.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
        return true;
    }

    @Override
    public void onDestroyActionMode(ActionMode mode) {
        super.onDestroyActionMode(mode);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window w = getActivity().getWindow();
            w.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION,
                    WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            w.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
                    WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
    }

回答9:

While I used the previous solutions earlier, there are more issues when adding a navigation drawer, if you want the drawer to draw behind the system bar, and so many glitches related to setting and clearing window flags or the status bar color (even the official Gmail app has these glitches!)

Here's the solution I use now:

@Override
public void onSupportActionModeStarted(@NonNull ActionMode mode) {
    super.onSupportActionModeStarted(mode);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        // Post this so it ideally happens after the window decor callbacks.
        new Handler().post(new Runnable() {
            @Override
            public void run() {
                try {
                    final AppCompatDelegate delegate = getDelegate();
                    final Class clazz = Class.forName("android.support.v7.app.AppCompatDelegateImplV7");
                    final Field mStatusGuardField = clazz.getDeclaredField("mStatusGuard");
                    mStatusGuardField.setAccessible(true);
                    final View mStatusGuard = (View) mStatusGuardField.get(delegate);
                    if (mStatusGuard != null) {
                        mStatusGuard.setBackgroundColor(/* Should match your desired status bar color when the action mode is showing, or alternatively you could use Color.TRANSPARENT here and just update the colors through getWindow().setStatusBarColor() below. The key is to avoid the black status guard from appearing. */);
                    }
                } catch (Exception e) {
                    /* Log or handle as desired. */
                }
            }
        });
        // Also set the status bar color. This is to avoid a momentary frame or 
        // two where the black will still be visible.
       getWindow().setStatusBarColor(/* Should match your desired status bar color when the action mode is showing. */);
    }
}

@Override
public void onSupportActionModeFinished(@NonNull ActionMode mode) {
    super.onSupportActionModeFinished(mode);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        // Reset to the theme's colorPrimaryDark. This would normally result in 
        // the black status guard being seen momentarily, but because we set it 
        // to the same color as the action mode background, this intermediate 
        // state is not visible.
        getWindow().setStatusBarColor(Color.TRANSPARENT);
    }
}

This is obviously a big hack, and it doesn't animate exactly as the contextual action bar does, but it does the trick for me. Props to https://stackoverflow.com/a/38702953/1317564 for coming up with the idea.

Note that this is only needed if you're using a navigation drawer or otherwise have these attributes set in your values-v21/theme.xml:

<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>

Otherwise, it will probably work to just call setStatusBarColor(...) in onSupportActionModeStarted() and onSupportActionModeFinished(), and this is what I was doing before adding a navigation drawer.