QQ的滑动删除效果很不错,要实现这种效果,可以使用SwipeListView。
1. 下载com.fortysevendeg.swipelistview这个项目(以前GitHub上有,现在GitHub上没有了,百度了很多次才下载到的),导入Eclipse,右键单击,选择Properties->Android,选中Library下面的IsLibrary。
2. 新建一个项目MySwipeListView,加入SwipeListView这个库。
3. 在主窗体里面放入一个SwipeListView控件:
<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"
xmlns:tools=\"http://schemas.android.com/tools\"
android:layout_width=\"match_parent\"
android:layout_height=\"match_parent\"
android:orientation=\"vertical\"
android:paddingBottom=\"@dimen/activity_vertical_margin\"
android:paddingLeft=\"@dimen/activity_horizontal_margin\"
android:paddingRight=\"@dimen/activity_horizontal_margin\"
android:paddingTop=\"@dimen/activity_vertical_margin\"
tools:context=\"com.hzhi.myswipelistview.MainActivity\" >
<com.fortysevendeg.swipelistview.SwipeListView
xmlns:swipe=\"http://schemas.android.com/apk/res-auto\"
android:id=\"@+id/exampleSwipeListView\"
android:listSelector=\"#00000000\"
android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
swipe:swipeBackView=\"@+id/back\"
swipe:swipeCloseAllItemsWhenMoveList=\"true\"
swipe:swipeDrawableChecked=\"@drawable/choice_selected\"
swipe:swipeDrawableUnchecked=\"@drawable/choice_unselected\"
swipe:swipeFrontView=\"@+id/front\"
swipe:swipeMode=\"both\"
swipe:swipeActionLeft=\"reveal\"
swipe:swipeActionRight=\"dismiss\"
swipe:swipeOpenOnLongPress=\"true\"
/>
</LinearLayout>
其中两个重要的属性:
swipe:swipeFrontView:上面的View,即不滑动时显示的View。
swipe:swipeBackView:下面的View,即滑动后显示的View。
这两个View都定义在SwipeListView的行布局文件里面:
<?xml version=\"1.0\" encoding=\"utf-8\"?>
<FrameLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"
android:layout_width=\"fill_parent\"
android:layout_height=\"fill_parent\"
>
<LinearLayout
android:id=\"@+id/back\"
android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:background=\"#ffcccccc\"
android:gravity=\"right\"
android:tag=\"back\" >
<Button
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:id=\"@+id/btn_delete\"
android:text=\"删除\"/>
<Button
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:id=\"@+id/btn_update\"
android:text=\"更新\"/>
</LinearLayout>
<RelativeLayout
android:orientation=\"vertical\"
android:id=\"@+id/front\"
android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:background=\"#ffffffff\"
>
<ImageView
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:id=\"@+id/example_row_iv_image\"/>
<TextView
android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:layout_toRightOf=\"@id/example_row_iv_image\"
android:id=\"@+id/example_row_tv_title\"/>
<TextView
android:layout_width=\"fill_parent\"
android:layout_height=\"wrap_content\"
android:layout_toRightOf=\"@id/example_row_iv_image\"
android:layout_below=\"@id/example_row_tv_title\"
android:id=\"@+id/example_row_tv_description\"/>
</RelativeLayout>
</FrameLayout>
SwipeListView的行布局文件使用FrameLayout布局,FrameLayout里面所有的所有子元素都堆叠在FrameLayout的左上角。
4. SwipeListView和其他ListView一样,也需要Adapter,使用方法也是一样的。这里就不详细讲了。
5. 在主窗体Java文件中实现SwipeListView的功能,代码如下:
package com.hzhi.myswipelistview;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import java.util.ArrayList;
import com.fortysevendeg.swipelistview.BaseSwipeListViewListener;
import com.fortysevendeg.swipelistview.SwipeListView;
import android.os.Bundle;
@SuppressWarnings(\"deprecation\")
public class MainActivity extends ActionBarActivity {
protected static final String TAG = \"MySwipeListView\";
private ArrayList<String> mList;
private MyAdapter mAdapter;
private SwipeListView mSwipeListView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initData();
mSwipeListView = (SwipeListView) findViewById(R.id.exampleSwipeListView);
mAdapter = new MyAdapter(this, mList, mSwipeListView);
mSwipeListView.setAdapter(mAdapter);
mSwipeListView.setSwipeListViewListener(new BaseSwipeListViewListener(){
@Override
public void onChoiceChanged(int position, boolean selected)
{
Log.d(TAG, \"onChoiceChanged:\" + position + \", \" + selected);
}
@Override
public void onChoiceEnded()
{
Log.d(TAG, \"onChoiceEnded\");
}
@Override
public void onChoiceStarted()
{
Log.d(TAG, \"onChoiceStarted\");
}
@Override
public void onClickBackView(int position)
{
Log.d(TAG, \"onClickBackView:\" + position);
}
@Override
public void onClickFrontView(int position)
{
Log.d(TAG, \"onClickFrontView:\" + position);
}
@Override
public void onClosed(int position, boolean fromRight)
{
Log.d(TAG, \"onClosed:\" + position + \",\" + fromRight);
}
@Override
public void onDismiss(int[] reverseSortedPositions)
{
Log.d(TAG, \"onDismiss\");
}
@Override
public void onFirstListItem()
{
Log.d(TAG, \"onFirstListItem\");
}
@Override
public void onLastListItem()
{
Log.d(TAG, \"onLastListItem\");
}
@Override
public void onListChanged()
{
Log.d(TAG, \"onListChanged\");
mSwipeListView.closeOpenedItems();
}
@Override
public void onMove(int position, float x)
{
Log.d(TAG, \"onMove:\" + position + \",\" + x);
}
@Override
public void onOpened(int position, boolean toRight)
{
Log.d(TAG, \"onOpened:\" + position + \",\" + toRight);
}
@Override
public void onStartClose(int position, boolean right)
{
Log.d(TAG, \"onStartClose:\" + position + \",\" + right);
}
@Override
public void onStartOpen(int position, int action, boolean right)
{
Log.d(TAG, \"onStartOpen:\" + position + \",\" + action + \",\" + right);
}
});
}
private void initData(){
mList = new ArrayList<String>();
for (int i = 0; i <= 10; i++)
mList.add(\"这是第\" + i +\"条数据!\");
}
}
最主要的代码即mSwipeListView.setSwipeListViewListener(new BaseSwipeListViewListener(){}),通过这行代码,为SwipeListView控件设置了Listener,可以根据自己的需要重载BaseSwipeListViewListener的各种方法。
运行结果:
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