android-actionbar

问题 In my app i want to have tabs in the middle of the screen and a gMap at the top is there anyway to position the tabs in the middle of the screen? Here is a raw design (source: qnex.me) 回答1: You can use ViewPagerIndicator library (using TabPageIndicator control) with a ViewPager control, and these are completely separate from the ActionBar and can be positioned anywhere you like. Download the source and check out the sample app. The code is very straightforward. Here's an example straight from

问题 I am trying to build a slide out menu like Facebook and Path apps . I want to place a button on right end of action bar which would trigger opening and closing the menu. When the menu would slide in to make itself visible I want to slide out the main view towards left along with the action bar. Everything else works fine. I am using the open source code available at - https://github.com/gitgrimbo/android-sliding-menu-demo But I am not able to find out if I can apply slide animation to the

问题 So, I'm trying to mimic something like Pandora's menu: Where you have the choice to hit the menu button or icon in the top right corner, either way, it will show the same drop down menu list. I've tried creating an 'overflow' menu but on older devices I found out that the menu appears at the bottom still (which I do not want). So I created a Spinner and used: getSupportActionBar().setNavigationMode(getSupportActionBar().NAVIGATION_MODE_LIST); The problem with this approach is that it displays

问题 I want to put an action bar with a menu button into a single android activity. I've put this in my activity XML: <android.support.v7.widget.Toolbar android:id="@+id/my_toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" android:elevation="4dp" android:theme="@style/ThemeOverlay.AppCompat.ActionBar" app:popupTheme="@style/ThemeOverlay.AppCompat.Light" /> I've put this in my JAVA file: @Override public boolean

问题 Simple question how do I use getDisplayOptions() of action bar? I want to maintain the state of action bar as I am flipping my view with some custom view. So before bringing my view I am storing my action bar state, so that I revert back to original state when my view is removed. I set few setting to my action bar like actionBar.setDisplayHomeAsUpEnabled(false); actionBar.setHomeButtonEnabled(false); actionBar.setDisplayShowCustomEnabled(false); actionBar.setDisplayShowHomeEnabled(true); So

问题 Simple question how do I use getDisplayOptions() of action bar? I want to maintain the state of action bar as I am flipping my view with some custom view. So before bringing my view I am storing my action bar state, so that I revert back to original state when my view is removed. I set few setting to my action bar like actionBar.setDisplayHomeAsUpEnabled(false); actionBar.setHomeButtonEnabled(false); actionBar.setDisplayShowCustomEnabled(false); actionBar.setDisplayShowHomeEnabled(true); So

问题 The onOptionsItemSelected(MenuItem item) method can be used to identify a click on each menu item. But i need to have a listener that can identify the click on the menu title (3 vertical dots at the top right of action bar). How could i implement one? 回答1: You can override onMenuOpened (javadoc) on your activity. 回答2: When you choose basic activity , you get that 3 dot menu with it. You don't have to add any click listener to that button it is created automatically. Try to run the app in

问题 The onOptionsItemSelected(MenuItem item) method can be used to identify a click on each menu item. But i need to have a listener that can identify the click on the menu title (3 vertical dots at the top right of action bar). How could i implement one? 回答1: You can override onMenuOpened (javadoc) on your activity. 回答2: When you choose basic activity , you get that 3 dot menu with it. You don't have to add any click listener to that button it is created automatically. Try to run the app in

问题 We have an app that's been working for years. So it does NOT use all the latest and greatest features. We've found that on current versions of Android, IF there is text in an EditText control AND you long-touch it - the app crashes with: 11-13 14:26:20.720: E/AndroidRuntime(1253): FATAL EXCEPTION: main 11-13 14:26:20.720: E/AndroidRuntime(1253): java.lang.IllegalStateException: ActionBarContextView can only be used with android:layout_width="match_parent" (or fill_parent) 11-13 14:26:20.720:

问题 I want to enable the Android ActionBar, however it doesn't work for me. Here is my MainActivity : public void onCreate(Bundle savedInstanceState) { this.requestWindowFeature(Window.FEATURE_NO_TITLE); super.onCreate(savedInstanceState); setContentView(R.layout.login); ActionBar actionBar = getActionBar(); actionBar.show(); //more code............ and here is the logcat: 03-04 16:31:09.423: E/AndroidRuntime(1441): FATAL EXCEPTION: main 03-04 16:31:09.423: E/AndroidRuntime(1441): java.lang