Android获取分享应用列表详解及实例

android获取分享应用列表详解及实例

如果在应用的androidmanifest.xml中含有 action_send 属性，那就证明该应用可以供第三方应用进行调用分享，那怎么获取函数该属性的分享列表了，这对我们做应用的非常有用；最近在做该功能，自己也做了下自定义的分享列表，用popupwindow的方式弹出。

    1、布局:

popup_share.xml

<?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

<?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

public list<resolveinfo> getshareapps(context context) {  
    list<resolveinfo> mapps = new arraylist<resolveinfo>(); 
    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

private list<appinfo> getshareapplist() {  
    list<appinfo> shareappinfos = new arraylist<appinfo>(); 
    packagemanager packagemanager = getpackagemanager(); 
    list<resolveinfo> 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

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<appinfo> 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, "test"); 
          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。(显示会有一个图标和一个分享的名字)

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