getInstalledPackages、ResolveInfo 获取apk的信息

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package com.example.packageinfo;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.util.Log;public class MainActivity extends Activity {private static PackageManager pManager;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);/** 获取安装的非系统应用 */List<PackageInfo> packageInfos = getAllApps(this);for (int i = 0; i < packageInfos.size(); i++) {PackageInfo packageInfo = packageInfos.get(i);Drawable packageIcon = pManager.getApplicationIcon(packageInfo.applicationInfo);String packageLabel = pManager.getApplicationLabel(packageInfo.applicationInfo).toString();String packageName = packageInfo.applicationInfo.packageName;int versionCode = packageInfo.versionCode;String versionName = packageInfo.versionName;/** * packageIcon:android.graphics.drawable.BitmapDrawable@3ed19685, * packageLabel鲁大师,  * packageNamecom.ludashi.benchmark,  * versionCode85, * versionName7.7.0.16.0401 */Log.i("TAG", "packageIcon:" + packageIcon + ",packageLabel"+ packageLabel + ",packageName" + packageName+ ",versionCode" + versionCode + ",versionName"+ versionName);}List<ResolveInfo> shareApps = getShareApps(this);for (int i = 0; i < shareApps.size(); i++) {String packageName = shareApps.get(i).activityInfo.packageName;// 得到图标Drawable icon = shareApps.get(i).loadIcon(pManager);// 得到应用名称String appName = shareApps.get(i).loadLabel(pManager).toString();/** * packageName:com.ludashi.benchmark, * iconandroid.graphics.drawable.BitmapDrawable@6a7d248, * appName鲁大师 */Log.i("TAG", "packageName:" + packageName + ",icon" + icon+ ",appName" + appName);}}/** * 获取手机安装的非系统应用 *  * @param context * @return */public static List<PackageInfo> getAllApps(Context context) {List<PackageInfo> apps = new ArrayList<PackageInfo>();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);// 该值大于0时，表示获取的应用为系统预装的应用，反之则为手动安装的应用if ((pak.applicationInfo.flags & pak.applicationInfo.FLAG_SYSTEM) <= 0) {apps.add(pak);}}return apps;}/** * 获取手机ResolveInfo列表 *  * @param context * @return */public static List<ResolveInfo> getShareApps(Context context) {List<ResolveInfo> mApps = new ArrayList<ResolveInfo>();Intent intent = new Intent();intent.setAction(Intent.ACTION_MAIN);intent.addCategory(Intent.CATEGORY_LAUNCHER);PackageManager pManager = context.getPackageManager();mApps = pManager.queryIntentActivities(intent,PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);return mApps;}}
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