我有一个状态栏，并在主题中设置了以下内容：
<!-- 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>
大多数我的活动都使用DrawerLayout，通过以下方式设置状态栏的颜色：
mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.myapp_green));
我正在使用一个自定义的Toolbar而非默认的ActionBar，因此它存在于我的布局中（即导航抽屉在其上方显示）。
一切都正常，但是在我的某个活动中，我有一个多选模式和一个 ActionMode。当激活此ActionMode（通过长按）时，它会覆盖Toolbar，使用以下代码：
<item name="android:windowActionModeOverlay">true</item>
<item name="windowActionModeOverlay">true</item>
<item name="actionModeStyle">@style/Material.Widget.ActionMode</item>
Material.Widget.ActionMode 样式是：<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>
现在的问题是，每当这种情况发生时，状态栏就会从
myapp_green颜色变为黑色。几乎就像状态栏半透明度被关闭了一样（我使用的是Android 5.0）。我想知道如何使这种行为不发生，并保持状态栏颜色/半透明度不变。我尝试将
<item name="android:windowTranslucentStatus">true</item>添加到操作模式的样式中，以及在ActionMode的样式中添加<item name="android:statusBarColor">@color/myapp_green</item>，但都没有成功。更新：
我想知道这是否与我设置状态栏背景的奇怪方式有关。我的所有Activity类都派生自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);
}
}
我实际上需要运行DrawerLayout.setStatusBarBackgroundColor()才能产生效果。仅在values-v21/styles.xml中更改colorPrimaryDark对状态栏没有影响。我觉得这可能是问题的根源...这些类正在从非Material主题转换为新的、类似Material的主题，所以我想知道当我将colorPrimaryDark转换为正确识别时是否有遗漏。
@color/wiw_green和R.color.myapp_green不一样，是吗？ - Eduardocom.android.support:design:28.0.0-rc01得到了修复。 - Soren Stoutner