AppHelper.java

package cn.bidaround.ytcore.util;

import java.util.List;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import cn.bidaround.point.YtConstants;


/**
 * 判断分享平台是否被安装
 * @author youtui
 * @since 14/6/19
 */
public class AppHelper {
	/**
	 * 通过package name检查APP是否已经安装
	 */
	private static boolean checkApp(Context context, String packageName) {
		PackageManager pm = context.getPackageManager();
		List<PackageInfo> packs = pm.getInstalledPackages(0);
		for (PackageInfo pi : packs) {
			if (pi.applicationInfo.packageName.equals(packageName)) {
				return true;
			}
		}
		return false;
	}

	/**
	 * 检查新浪微博是否已经安装
	 */
	public static boolean isSinaWeiboExisted(Context context) {
		if (checkApp(context, YtConstants.PACKAGE_NAME_SINA_WEIBO)) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 检查腾讯QQ是否已经安装
	 */
	public static boolean isTencentQQExisted(Context context) {
		if (checkApp(context, YtConstants.PACKAGE_NAME_TENCENT_QQ)) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 检查人人客户端是否已经安装
	 */
	public static boolean isRenrenExisted(Context context) {
		if (checkApp(context, YtConstants.PACKAGE_NAME_RENREN)) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 检查微信是否已经安装
	 */
	public static boolean isWeixinExisted(Context context) {
		if (checkApp(context, YtConstants.PACKAGE_NAME_WEIXIN)) {
			return true;
		} else {
			return false;
		}
	}
	
	/**
	 * 检查易信是否已经安装
	 */
	public static boolean isYixinExisted(Context context) {
		if (checkApp(context, "im.yixin")) {
			return true;
		} else {
			return false;
		}
	}
	
	/**
	 * 检查开心网是否已经安装
	 */
	public static boolean isKaixinExisted(Context context) {
		if (checkApp(context, "com.kaixin001.activity")) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 用于检测该intent能否可以使用
	 */
	public static boolean isIntentAvailable(Context context, Intent intent) {
		final PackageManager packageManager = context.getPackageManager();
		List<ResolveInfo> list = packageManager.queryIntentActivities(intent,
				PackageManager.GET_ACTIVITIES);
		return list.size() > 0;
	}
}