看到最近都在做自定義的東西，因?yàn)楸容^靈活，還可以擺脫系統(tǒng)自身不怎么漂亮的UI，(大家都懂得)所以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?

2、查詢手機(jī)內(nèi)所有支持分享的應(yīng)用列表 ?

public?ListgetShareApps(Context?context)?{	
		ListmApps?=?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是從一個(gè)特定的應(yīng)用得到的信息。這些信息是從相對(duì)應(yīng)的Androdimanifest.xml的< application>標(biāo)簽中收集到的。 ResolveInfo這個(gè)類是通過解析一個(gè)與IntentFilter相對(duì)應(yīng)的intent得到的信息。它部分地對(duì)應(yīng)于從AndroidManifest.xml的< intent>標(biāo)簽收集到的信息。 得到List列表，我自建的AppInfo類，自己建一個(gè)就行 ?

private?ListgetShareAppList()?{	
		ListshareAppInfos?=?new?ArrayList();
		PackageManager?packageManager?=?getPackageManager();
		ListresolveInfos?=?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(shí)現(xiàn)

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);
			ListshareAppInfos?=?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(nèi)容了，
					shareIntent.putExtra(Intent.EXTRA_TEXT,?"測(cè)試，這里發(fā)送推廣地址");
					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);
		//設(shè)置允許在外點(diǎn)擊消失
		sharePopupWindow.setOutsideTouchable(true);
		//?這個(gè)是為了點(diǎn)擊“返回Back”也能使其消失，并且并不會(huì)影響你的背景
		sharePopupWindow.setBackgroundDrawable(new?BitmapDrawable());
		//xoff,yoff基于anchor的左下角進(jìn)行偏移。正數(shù)表示下方右邊，負(fù)數(shù)表示（上方左邊）
		//showAsDropDown(parent,?xPos,?yPos);
		sharePopupWindow.showAsDropDown(parent,?-5,?5);
	}

注：ShareCustomAdapter自己建一個(gè)就行了。(有一個(gè)圖標(biāo)和一個(gè)分享的名)