如果已知第三方app的名字，也就是label，想在自己的项目启动该app，代码如下：
package com.aiiage.aiiagerobot.helpers;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import java.util.Collections;
import java.util.List;
/**
* Created by Administrator on 2016/8/24.
* 根据app的名字调用第三方app，不需要知道包名和类名
*/
public class startOtherAppHelper {
private static PackageManager mPackageManager;
private static List<ResolveInfo> mAllApps;
private static Context mContext;
public static boolean openApp(Context context, String appName) {
mContext = context;
Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
mPackageManager = mContext.getPackageManager();
mAllApps = mPackageManager.queryIntentActivities(mainIntent, 0);
//按报名排序
Collections.sort(mAllApps, new ResolveInfo.DisplayNameComparator(mPackageManager));
for (ResolveInfo res : mAllApps) {
//该应用的label名
String label = res.loadLabel(mPackageManager).toString();
if (appName.equals(label)) {//如果存在该名字，启动app
String pkg = res.activityInfo.packageName;
String cls = res.activityInfo.name;
ComponentName componet = new ComponentName(pkg, cls);
Intent intent = new Intent();
intent.setComponent(componet);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mContext.startActivity(intent);
return true;
}
}
return false;
}
}
startOtherAppHelper.openApp(mContext,"百度地图");