options-menu

问题 My application was running fine until i added the following code to add an options Menu to my main Activity: @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.wantlist_menu, menu); return true; } The Menu Resource looks as follows: <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:enabled="true" android:visible="true" android:id="@+id/clearImageCashe"

问题 I can create an Option Menu for a single Activity. But now I want to create a Logout option in the menu which should be available on all Activities in the App. Is there a possible way to create an Option menu once for an Application? 回答1: I answered this once on SO, but i forgot where...so here i go again. Its quite Straightforward. Create a BaseActivity (extends Activity ). Implement all your Options Menu Code in this. Override your onOptionsMenu ,etc... Now, For all your other Activities,

问题 I am calling some fragments from HomeScreen.java. Now whenever i press back button in any fragment, its closes the application. But i want previous fragment which was loaded.Following is HomeScreen.java code. public class HomeScreen extends AppCompatActivity implements JobListFragment.OnJobSelectedListener { Timer timer; TimerTask timerTask; final android.os.Handler handler = new android.os.Handler(); FragmentTransaction transaction; android.app.FragmentManager fragmentManager;

问题 I am calling some fragments from HomeScreen.java. Now whenever i press back button in any fragment, its closes the application. But i want previous fragment which was loaded.Following is HomeScreen.java code. public class HomeScreen extends AppCompatActivity implements JobListFragment.OnJobSelectedListener { Timer timer; TimerTask timerTask; final android.os.Handler handler = new android.os.Handler(); FragmentTransaction transaction; android.app.FragmentManager fragmentManager;

问题 I have a table of 4 columns using the Bootstrap 3 grid system. Instead of using the col-xs-* , which works great on mobile, I used the col-md-* . The reason was simple -- on mobile, I didn't want the icons to shrink down very small and wanted them larger and visible on mobile. When I switched from col-xs-* to col-md-* for these columns, the mobile would automatically stack the icons in the grid and keep them large -- which is exactly what I want. Okay, all is well except that somehow this

问题 I need the options menu to be displayed on screen always.. I've written the code to open options menu on the startup of an activity.. @Override public void onAttachedToWindow() { openOptionsMenu(); }; But on clicking on another item on the screen, the menu goes down.. I want the menu to be on screen always.. Is there any way to do that? 回答1: Please try the following code: @Override public void onOptionsMenuClosed(Menu menu) { openOptionsMenu(); } 来源： https://stackoverflow.com/questions

问题 I'm trying to find some information on how to create a menu that looks like the top of the menu for chrome for Android. I have tried experimenting with implementing icons for Android 4.0, but no luck. Tried googeling, but the only thing i found was an answer that said icons can't be implemented when API >= 11. How does Chrome do it then? It's made for devices that's 4.0+! 回答1: Use popup list window to achieve this. As you can add header and footer to any list, you can create one linear layout

问题 I would like to know (as I've failed so far in finding such a feature in the VS's options), if there is a feature which allow for scope highlighting same as seen in the BlueJ IDE for java, here is an example: Note how the code blocks are all highlighted with color, when learning java using blueJ i found it to be extremely easy on the eye when looking at code, and everything felt a lot more organized, moving to C# and working on MS visual studio, its all text with some highlighting, Class

问题 Each time my Optionsmenu opens (onCreateOptionsMenu(..) is called), I get these warnings: "No keyboard for id 0" and "Using default keyMap: /system/usr/keychars/qwerty.kcm.bin" I couldn't find out what they mean, does anyone know ? I didn't like this answer. Here's the simple code I'm using: @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.optmenu_start, menu); return true; } and the optmenu_start.xml: <menu xmlns

问题 I have a working SearchView which expands in my OptionsMenu when the user taps on the search icon. However it only expands within the available space among the other OptionsMenu icons. On a wide screen this is fine, but with a narrow space there is only room to show 5-10 charaters in the search box. I want it to overlay the other icons such as it does for the Android Contacts app. Currently, I'm building with targetSdkVersion = 17. Hopefully I'm missing something simple :) (Note added later: