android-selector

问题 I have a list where I have defined my own list view items with a custom layout. This layout has a background with a custom drawable. My custom layout for the ListView item: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/item" android:clickable="true" android:focusable="true" android:focusableInTouchMode="true" > ... </RelativeLayout> My custom drawable item.xml :

问题 I made a button with a pressed effect with selector.. I am using android studio, when I use eclipse its running well.. but, when I try in android studio, the log keeps displaying error.. This is my log: java.lang.NullPointerException at android.graphics.Bitmap_Delegate.createBitmap(Bitmap_Delegate.java:614) at android.graphics.Bitmap_Delegate.createBitmap(Bitmap_Delegate.java:122) at android.graphics.Bitmap_Delegate.createBitmap(Bitmap_Delegate.java:104) at com.android.layoutlib.bridge.impl

问题 I want to add selectors to tabs. like select_image and unselect_image for each tab. I did it like this. This particular code is running for TabActivity public class MainActivity extends FragmentActivity { private FragmentTabHost mTabHost; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost); mTabHost.setup(this, getSupportFragmentManager(), R.id

问题 I want to add selectors to tabs. like select_image and unselect_image for each tab. I did it like this. This particular code is running for TabActivity public class MainActivity extends FragmentActivity { private FragmentTabHost mTabHost; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost); mTabHost.setup(this, getSupportFragmentManager(), R.id

问题 All I want is that an imagebutton which changes to another image when user press the button on. Following is my directory list. As you see I don't have drawable-hdpi, drawable-mdpi ..and others. And also I can't see mipmap-hdpi, mipmap-mdpi ..and others. My problem is I can't add selector xml for my imagebutton. directory list Following image is my content_main file which known as activity_main. content_main. My program shows the image of button but when I add android:background="@drawable

问题 I am developing a tabbed application in which one of the fragments, CollectionsFragment, contains a GridView with an ImageView in each slot. I would like the to use a selector to give feedback to users when the user clicks on one of the images. I have successfully implemented the selector, however, my problem is that the selector is only drawing in the background of the image, but I would like to the selector to draw over the entire image. I have seen this problem referenced elsewhere,

问题 WARNING: The XML in this question is wrong, read the answer before you confuse yourself! I have been banging my head on the wall for a while now. The following posts have shed light on the subject, but failed to solve my issue: Android ListView State List not showing default item background and ListView item background via custom selector The proper nine-patch background shows perfectly when I select the list item, but I can not get the default nine-patch background to show initially. It

问题 So, I have a ListFragment with a custom layout which has a custom CursorAdapter that passes custom views to the ListView . The ListView has its choice mode set as MultiChoiceModal . However, selected items are never highlighted, whether I'm selecting one item in normal mode or several in Action Mode. To solve this, I tried a Selector. <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:color="@android:color/holo_blue_dark"

问题 I have expandable list which looks like this: Orange items are children and are shown when you press specific parent. Blue items are parents.I used this custom adapter to create this: (I picked this source code somewhere here on forum) public class ExpandableListAdapter extends BaseExpandableListAdapter { private Context context; private List<String> listDataHeader; private HashMap<String, List<String>> listDataChild; public ExpandableListAdapter(Context context, List<String> listDataHeader,

问题 I want to draw selector on long press as shown in the picture. When I do long press on one item, the CAB menu is activated. But the list selector indicator goes off once after clicking. I want that list selectors to be active till the CAB menu is active for allowing multiple selection. And the color should toggle if I do double tap. This code works as a flicker when I click on it. Any one faced similar thing? Is there a hack to bring this functionality? Gridview with multiple selection: