侧滑可以删除的ListView

「爱情、让人受尽委屈。」 2024-02-17 17:29 12阅读 0赞

之前写了一篇可以侧滑删除的的ListView，用的自定义SlideView，把布局加载到SlideView中实现侧滑，后来网上查询了下，发现很多都是在代码中New一个侧滑按钮的对象来实现。

效果如下：读取了系统应用列表，并且可以打开系统内部应用。

![Center][]

代码

package cn.swu.pulltorefreshswipemenulistviewsample;
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.List;
    import java.util.Locale;
    
    import android.app.Activity;
    import android.content.ComponentName;
    import android.content.Intent;
    import android.content.pm.ApplicationInfo;
    import android.content.pm.ResolveInfo;
    import android.graphics.Color;
    import android.graphics.drawable.ColorDrawable;
    import android.net.Uri;
    import android.os.Bundle;
    import android.os.Handler;
    import android.util.TypedValue;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.AdapterView;
    import android.widget.AdapterView.OnItemLongClickListener;
    import android.widget.BaseAdapter;
    import android.widget.ImageView;
    import android.widget.TextView;
    import android.widget.Toast;
    import cn.swu.pulltorefresh.RefreshTime;
    import cn.swu.pulltorefreshswipemenulistviewsample.PullToRefreshSwipeMenuListView.IXListViewListener;
    import cn.swu.pulltorefreshswipemenulistviewsample.PullToRefreshSwipeMenuListView.OnMenuItemClickListener;
    import cn.swu.pulltorefreshswipemenulistviewsample.PullToRefreshSwipeMenuListView.OnSwipeListener;
    import cn.swu.swipemenulistview.SwipeMenu;
    import cn.swu.swipemenulistview.SwipeMenuCreator;
    import cn.swu.swipemenulistview.SwipeMenuItem;
    
    public class MainActivity extends Activity implements IXListViewListener {
    
        private List<ApplicationInfo> mAppList;
        private AppAdapter mAdapter;
        private PullToRefreshSwipeMenuListView mListView;
        private Handler mHandler;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_list);
            
            mAppList = getPackageManager().getInstalledApplications(0);
    
            mListView = (PullToRefreshSwipeMenuListView) findViewById(R.id.listView);
            mAdapter = new AppAdapter();
            mListView.setAdapter(mAdapter);
            mListView.setPullRefreshEnable(true);
            mListView.setPullLoadEnable(true);
            mListView.setXListViewListener(this);
            mHandler = new Handler();
    
            // step 1. create a MenuCreator
            SwipeMenuCreator creator = new SwipeMenuCreator() {
    
                @Override
                public void create(SwipeMenu menu) {
                    // create "open" item
                    SwipeMenuItem openItem = new SwipeMenuItem(getApplicationContext());
                    // set item background
    //                openItem.setBackground(new ColorDrawable(Color.rgb(0xC9, 0xC9, 0xCE)));
                    openItem.setBackground(new ColorDrawable(MainActivity.this.getResources().getColor(R.color.green)));
                    // set item width
                    openItem.setWidth(dp2px(90));
                    // set item title
                    openItem.setTitle("Open");
                    // set item title fontsize
                    openItem.setTitleSize(18);
                    // set item title font color
                    openItem.setTitleColor(MainActivity.this.getResources().getColor(R.color.black));
                    // add to menu
                    menu.addMenuItem(openItem);
    
                    // create "delete" item
                    SwipeMenuItem deleteItem = new SwipeMenuItem(getApplicationContext());
                    // set item background
                    deleteItem.setBackground(new ColorDrawable(Color.rgb(0xF9, 0x3F, 0x25)));
                    // set item width
                    deleteItem.setWidth(dp2px(90));
                    // set a icon
                    deleteItem.setIcon(R.drawable.ic_delete);
                    // add to menu
                    menu.addMenuItem(deleteItem);
                }
            };
            // set creator
            mListView.setMenuCreator(creator);
    
            // step 2. listener item click event
            mListView.setOnMenuItemClickListener(new OnMenuItemClickListener() {
                @Override
                public void onMenuItemClick(int position, SwipeMenu menu, int index) {
                    ApplicationInfo item = mAppList.get(position);
                    switch (index) {
                    case 0:
                        // open
                        open(item);
                        break;
                    case 1:
                        // delete
                        // delete(item);
                        mAppList.remove(position);
                        mAdapter.notifyDataSetChanged();
                        break;
                    }
                }
            });
    
            // set SwipeListener
            mListView.setOnSwipeListener(new OnSwipeListener() {
    
                @Override
                public void onSwipeStart(int position) {
                    // swipe start
                }
    
                @Override
                public void onSwipeEnd(int position) {
                    // swipe end
                }
            });
    
            // other setting
            // listView.setCloseInterpolator(new BounceInterpolator());
    
            // test item long click
            mListView.setOnItemLongClickListener(new OnItemLongClickListener() {
    
                @Override
                public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                    Toast.makeText(getApplicationContext(), position + " long click", Toast.LENGTH_SHORT).show();
                    return false;
                }
            });
    
        }
    
        private void onLoad() {
            mListView.setRefreshTime(RefreshTime.getRefreshTime(getApplicationContext()));
            mListView.stopRefresh();
    
            mListView.stopLoadMore();
    
        }
    
        public void onRefresh() {
            mHandler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    SimpleDateFormat df = new SimpleDateFormat("MM-dd HH:mm", Locale.getDefault());
                    RefreshTime.setRefreshTime(getApplicationContext(), df.format(new Date()));
                    onLoad();
                }
            }, 2000);
        }
    
        public void onLoadMore() {
            mHandler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    onLoad();
                }
            }, 2000);
        }
    
        private void delete(ApplicationInfo item) {
            // delete app
            try {
                Intent intent = new Intent(Intent.ACTION_DELETE);
                intent.setData(Uri.fromParts("package", item.packageName, null));
                startActivity(intent);
            } catch (Exception e) {
            }
        }
    
        private void open(ApplicationInfo item) {
            // open app
            Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
            resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
            resolveIntent.setPackage(item.packageName);
            List<ResolveInfo> resolveInfoList = getPackageManager().queryIntentActivities(resolveIntent, 0);
            if (resolveInfoList != null && resolveInfoList.size() > 0) {
                ResolveInfo resolveInfo = resolveInfoList.get(0);
                String activityPackageName = resolveInfo.activityInfo.packageName;
                String className = resolveInfo.activityInfo.name;
    
                Intent intent = new Intent(Intent.ACTION_MAIN);
                intent.addCategory(Intent.CATEGORY_LAUNCHER);
                ComponentName componentName = new ComponentName(activityPackageName, className);
    
                intent.setComponent(componentName);
                startActivity(intent);
            }
        }
    
        class AppAdapter extends BaseAdapter {
    
            @Override
            public int getCount() {
                return mAppList.size();
            }
    
            @Override
            public ApplicationInfo getItem(int position) {
                return mAppList.get(position);
            }
    
            @Override
            public long getItemId(int position) {
                return position;
            }
    
            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                if (convertView == null) {
                    convertView = View.inflate(getApplicationContext(), R.layout.item_list_app, null);
                    new ViewHolder(convertView);
                }
                ViewHolder holder = (ViewHolder) convertView.getTag();
                ApplicationInfo item = getItem(position);
                holder.iv_icon.setImageDrawable(item.loadIcon(getPackageManager()));
                holder.tv_name.setText(item.loadLabel(getPackageManager()));
                return convertView;
            }
    
            class ViewHolder {
                ImageView iv_icon;
                TextView tv_name;
    
                public ViewHolder(View view) {
                    iv_icon = (ImageView) view.findViewById(R.id.iv_icon);
                    tv_name = (TextView) view.findViewById(R.id.tv_name);
                    view.setTag(this);
                }
            }
        }
    
        private int dp2px(int dp) {
            return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics());
        }
    }

[完整demo下载][demo]

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/30/fdb36639a6594573afe654ea2198f69b.png
[demo]: http://download.csdn.net/detail/onceing/9530821