Android獲取分享應用列表詳解及實例
如果在應用的AndroidManifest.xml中含有 ACTION_SEND 屬性，那就證明該應用可以供第三方應用進行調用分享，那怎么獲取函數該屬性的分享列表了，這對我們做應用的非常有用；最近在做該功能，自己也做了下自定義的分享列表，用PopupWindow的方式彈出。
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、查詢手機內所有支持分享的應用列表
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是從一個特定的應用得到的信息。這些信息是從相對應的Androdimanifest.xml的< application>標簽中收集到的。
ResolveInfo這個類是通過解析一個與IntentFilter相對應的intent得到的信息。它部分地對應于從AndroidManifest.xml的< intent>標簽收集到的信息。
得到List列表，我自建的AppInfo類，自己建一個就行
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、彈出PopupWindow的實現
private void initSharePopupWindow(View parent) { PopupWindow sharePopupWindow = null; View view = null; ListView shareList = null; if(null == sharePopupWindow) { //加載布局文件 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("*/*"); //這里就是組織內容了， 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); //設置允許在外點擊消失 sharePopupWindow.setOutsideTouchable(true); // 這個是為了點擊“返回Back”也能使其消失，并且并不會影響你的背景 sharePopupWindow.setBackgroundDrawable(new BitmapDrawable()); //xoff,yoff基于anchor的左下角進行偏移。正數表示下方右邊，負數表示（上方左邊） //showAsDropDown(parent, xPos, yPos); sharePopupWindow.showAsDropDown(parent, -5, 5); } 注：ShareCustomAdapter自己建一個就行了。(顯示會有一個圖標和一個分享的名字)
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