Android编程实现自定义分享列表ACTION_SEND功能的方法



本文实例讲述了Android编程实现自定义分享列表ACTION_SEND功能的方法。分享给大家供大家参考,具体如下:

看到最近都在做自定义的东西,因为比较灵活,还可以摆脱系统自身不怎么漂亮的UI,(大家都懂得)所以自己也做了下自定义的分享列表,用PopupWindow的方式弹出。

先上效果图:

Android编程实现自定义分享列表ACTION_SEND功能的方法_第1张图片

1、布局:

popup_share.xml

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xml version = "1.0" encoding = "utf-8" ?>
< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:layout_width = "fill_parent"
   android:layout_height = "wrap_content" >
  < ListView
     android:id = "@+id/share_list"
     android:background = "#2F4F4F"
     android:fadingEdge = "none"
     android:layout_width = "fill_parent"
     android:layout_height = "wrap_content"
     android:cacheColorHint = "#00000000"
     android:divider = "#E2DD75"
     android:dividerHeight = "1.0dip"
     android:headerDividersEnabled = "true"
     android:footerDividersEnabled = "false" />
LinearLayout >

popup_share_item.xml

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xml version = "1.0" encoding = "utf-8" ?>
< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:gravity = "center_vertical"
   android:layout_width = "wrap_content"
   android:layout_height = "wrap_content"
   android:padding = "2.0dip" >
   < ImageView
     android:id = "@+id/share_item_icon"
     android:layout_width = "32.0dip"
     android:layout_height = "32.0dip"
     android:layout_marginLeft = "3.0dip"
     android:scaleType = "fitXY" />
   < TextView
     android:id = "@+id/share_item_name"
     android:gravity = "center"
     android:layout_width = "wrap_content"
     android:layout_height = "wrap_content"
     android:text = "分享"
     android:textColor = "@color/white"
     android:singleLine = "true"
     android:textSize = "@dimen/s_size"
     android:layout_marginLeft = "3.0dip"
     android:layout_marginRight = "3.0dip" />
LinearLayout >

2、查询手机内所有支持分享的应用列表

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public List getShareApps(Context context) {
     List mApps = new ArrayList();
     Intent intent = new Intent(Intent.ACTION_SEND, null );
     intent.addCategory(Intent.CATEGORY_DEFAULT);
     intent.setType( "text/plain" );
//   intent.setType("*/*");
     PackageManager pManager = context.getPackageManager();
     mApps = pManager.queryIntentActivities(intent,
         PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);
     return mApps;
}

注:ApplicationInfo是从一个特定的应用得到的信息。这些信息是从相对应的Androdimanifest.xml的< application>标签中收集到的。

ResolveInfo这个类是通过解析一个与IntentFilter相对应的intent得到的信息。它部分地对应于从AndroidManifest.xml的< intent>标签收集到的信息。

得到List列表,我自建的AppInfo类,自己建一个就行

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private List getShareAppList() {
     List shareAppInfos = new ArrayList();
     PackageManager packageManager = getPackageManager();
     List resolveInfos = getShareApps(mContext);
     if ( null == resolveInfos) {
       return null ;
     } else {
       for (ResolveInfo resolveInfo : resolveInfos) {
         AppInfo appInfo = new AppInfo();
         appInfo.setAppPkgName(resolveInfo.activityInfo.packageName);
//       showLog_I(TAG, "pkg>" + resolveInfo.activityInfo.packageName + ";name>" + resolveInfo.activityInfo.name);
         appInfo.setAppLauncherClassName(resolveInfo.activityInfo.name);
         appInfo.setAppName(resolveInfo.loadLabel(packageManager).toString());
         appInfo.setAppIcon(resolveInfo.loadIcon(packageManager));
         shareAppInfos.add(appInfo);
       }
     }
     return shareAppInfos;
}

3、弹出PopupWindow的实现

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private void initSharePopupWindow(View parent) {
     PopupWindow sharePopupWindow = null ;
     View view = null ;
     ListView shareList = null ;
     if ( null == sharePopupWindow) {
       //加载布局文件
       view = LayoutInflater.from(DetailExchangeActivity. this ).inflate(R.layout.popup_share, null );
       shareList = (ListView) view.findViewById(R.id.share_list);
       List shareAppInfos = getShareAppList();
       final ShareCustomAdapter adapter = new ShareCustomAdapter(mContext, shareAppInfos);
       shareList.setAdapter(adapter);
       shareList.setOnItemClickListener( new OnItemClickListener() {
         @Override
         public void onItemClick(AdapterView parent, View view,
             int position, long id) {
           // TODO Auto-generated method stub
           Intent shareIntent = new Intent(Intent.ACTION_SEND);
           AppInfo appInfo = (AppInfo) adapter.getItem(position);
           shareIntent.setComponent( new ComponentName(appInfo.getAppPkgName(), appInfo.getAppLauncherClassName()));
           shareIntent.setType( "text/plain" );
//         shareIntent.setType("*/*");
           //这里就是组织内容了,
           shareIntent.putExtra(Intent.EXTRA_TEXT, "测试,这里发送推广地址" );
           shareIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
           DetailExchangeActivity. this .startActivity(shareIntent);
         }
       });
       sharePopupWindow = new PopupWindow(view,
           ( int )( 160 * density), LinearLayout.LayoutParams.WRAP_CONTENT);
     }
     //使其聚焦
     sharePopupWindow.setFocusable( true );
     //设置允许在外点击消失
     sharePopupWindow.setOutsideTouchable( true );
     // 这个是为了点击“返回Back”也能使其消失,并且并不会影响你的背景
     sharePopupWindow.setBackgroundDrawable( new BitmapDrawable());
     //xoff,yoff基于anchor的左下角进行偏移。正数表示下方右边,负数表示(上方左边)
     //showAsDropDown(parent, xPos, yPos);
     sharePopupWindow.showAsDropDown(parent, - 5 , 5 );
}

注:ShareCustomAdapter自己建一个就行了。(有一个图标和一个分享的名)

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希望本文所述对大家Android程序设计有所帮助。

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