SystemUtils.java工具类

package com.techrare.utils;

import java.util.ArrayList;
import java.util.List;

/**
* 获取手机应用信息
* @author Administrator
*
*/
public class SystemUtils {
/**
* 查询手机内所有应用包括系统应用
* @param context
*/
public static List getAllApps(Context context) {
PackageManager pManager = context.getPackageManager();
//获取手机内所有应用
List paklist = pManager.getInstalledPackages(0);
return paklist;
}


/**
* 查询手机内非系统应用
* @param context
* @return
*/
public static List getAllAppsNoSystem(Context context) {
List apps = new ArrayList();
PackageManager pManager = context.getPackageManager();
//获取手机内所有应用
List paklist = pManager.getInstalledPackages(0);
for (int i = 0; i < paklist.size(); i++) {
PackageInfo pak = (PackageInfo) paklist.get(i);
//判断是否为非系统预装的应用程序
if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0) {
// customs applications
apps.add(pak);
}
}
return apps;
}


/**
* 查询手机内所有支持分享的应用
* @param context
* @return
*/
public static List getShareApps(Context context){
List mApps = new ArrayList();
Intent intent=new Intent(Intent.ACTION_SEND,null);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setType("text/plain");
PackageManager pManager = context.getPackageManager();
mApps = pManager.queryIntentActivities(intent,PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);

return mApps;
}

/* 备注：
通过 PackageInfo 获取具体信息方法：
包名获取方法：packageInfo.packageName
icon获取获取方法：packageManager.getApplicationIcon(applicationInfo)
应用名称获取方法：packageManager.getApplicationLabel(applicationInfo)
使用权限获取方法：packageManager.getPackageInfo(packageName,PackageManager.GET_PERMISSIONS).requestedPermissions
通过 ResolveInfo 获取具体信息方法：
包名获取方法：resolve.activityInfo.packageName
icon获取获取方法：resolve.loadIcon(packageManager)
应用名称获取方法：resolve.loadLabel(packageManager).toString()
*/
}