获取手机应用信息

SystemUtils.java工具类

package com.techrare.utils;

import java.util.ArrayList;
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;

/**
 * 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<PackageInfo> getAllApps(Context context) {   
	    PackageManager pManager = context.getPackageManager();  
	    //获取手机内所有应用     
	    List<PackageInfo> paklist = pManager.getInstalledPackages(0);
	    return paklist;
	}
	
	
	/**   
	 * 查询手机内非系统应用   
	 * @param context   
	 * @return   
	 */     
	public static List<PackageInfo> getAllAppsNoSystem(Context context) {     
	    List<PackageInfo> apps = new ArrayList<PackageInfo>();     
	    PackageManager pManager = context.getPackageManager();     
	    //获取手机内所有应用     
	    List<PackageInfo> 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<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");       
	    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()
	 */
}