Checkable Relative Layout As Item In Multiselect List

I have android app with list view with choice mode set to multiple choice modal. Items on this list are defined as relative layouts. How can I change the background of items when t

Solution 1:

You can use a selector

In your Relative Layout Add

  android:background=@drawable/bkg"

Then in drawable folder have bk.xml

<?xml version="1.0" encoding="utf-8"?><selectorxmlns:android="http://schemas.android.com/apk/res/android"><itemandroid:state_pressed="true"android:drawable="@drawable/pressed" /><itemandroid:state_focused="false"android:drawable="@drawable/normal" /></selector>

pressed.xml

<?xml version="1.0" encoding="UTF-8"?><shapexmlns:android="http://schemas.android.com/apk/res/android"><solidandroid:color="#FF1A47"/>    // change the colors to meet your requirement
    <strokeandroid:width="3dp"android:color="#0FECFF"/><paddingandroid:left="5dp"android:top="5dp"android:right="5dp"android:bottom="5dp"/><cornersandroid:bottomRightRadius="7dp" // forroundedcornerremovethisifnotrequiredandroid:bottomLeftRadius="7dp"android:topLeftRadius="7dp"android:topRightRadius="7dp"/></shape>

normal.xml

<?xml version="1.0" encoding="UTF-8"?><shapexmlns:android="http://schemas.android.com/apk/res/android"><solidandroid:color="#FFFFFF"/><strokeandroid:width="3dp"android:color="#0FECFF" /><paddingandroid:left="5dp"android:top="5dp"android:right="5dp"android:bottom="5dp"/><cornersandroid:bottomRightRadius="7dp"android:bottomLeftRadius="7dp"android:topLeftRadius="7dp"android:topRightRadius="7dp"/></shape>

Edit:

The sample can be found @

android-sdk-linux/samples/android-17/ApiDemos/src/com/example/android/apis/view/List16

From your comments and discussion i assume this is what you want.

publicclassMainActivityextendsListActivity {
    String[] GENRES = newString[] {
            "Action", "Adventure", "Animation", "Children", "Comedy",
        "Documentary", "Drama",
            "Foreign", "History", "Independent", "Romance", "Sci-Fi",
        "Television", "Thriller"
        };

    @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ListViewlv= getListView();
        lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
        lv.setMultiChoiceModeListener(newModeCallback());
        setListAdapter(newArrayAdapter<String>(this,
                android.R.layout.simple_list_item_activated_1, GENRES));
    }

    @OverrideprotectedvoidonPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        getActionBar().setSubtitle("Long press to start selection");
    }

    privateclassModeCallbackimplementsListView.MultiChoiceModeListener {

        publicbooleanonCreateActionMode(ActionMode mode, Menu menu) {
            MenuInflaterinflater= getMenuInflater();
            inflater.inflate(R.menu.list_select_menu, menu);
            mode.setTitle("Select Items");
            returntrue;
        }

        publicbooleanonPrepareActionMode(ActionMode mode, Menu menu) {
            returntrue;
        }

        publicbooleanonActionItemClicked(ActionMode mode, MenuItem item) {
            switch (item.getItemId()) {
            case R.id.share:
                Toast.makeText(MainActivity.this, "Shared " + getListView().getCheckedItemCount() +
                        " items", Toast.LENGTH_SHORT).show();
                mode.finish();
                break;
            default:
                Toast.makeText(MainActivity.this, "Clicked " + item.getTitle(),
                        Toast.LENGTH_SHORT).show();
                break;
            }
            returntrue;
        }

        publicvoidonDestroyActionMode(ActionMode mode) {
        }

        publicvoidonItemCheckedStateChanged(ActionMode mode,
                int position, long id, boolean checked) {
            finalintcheckedCount= getListView().getCheckedItemCount();
            switch (checkedCount) {
                case0:
                    mode.setSubtitle(null);
                    break;
                case1:
                    mode.setSubtitle("One item selected");
                    break;
                default:
                    mode.setSubtitle("" + checkedCount + " items selected");
                    break;
            }
        }

    }
}

list_select_menu.xml

<menuxmlns:android="http://schemas.android.com/apk/res/android"><itemandroid:id="@+id/share"android:title="share"android:icon="@android:drawable/ic_menu_share"android:showAsAction="always" /></menu>

Snap shot

Solution 2:

You can use a drawable selector for this. Create a new xml in the res/drawable folder e.g. list_item_background.xml and use this to select 2 different drawables for default state and selected state:

list_item_background.xml:

<?xml version="1.0" encoding="utf-8"?><selectorxmlns:android="http://schemas.android.com/apk/res/android"><itemandroid:drawable="@drawable/listitem_selected"android:state_selected="true" /><itemandroid:drawable="@drawable/listitem_normal" /></selector>