包工具类 PackageUtils

野性酷女 2023-10-05 14:14 24阅读 0赞

import android.content.ComponentName;
    import android.content.Context;
    import android.content.Intent;
    import android.content.pm.ApplicationInfo;
    import android.content.pm.PackageInfo;
    import android.content.pm.PackageManager;
    import android.content.pm.ResolveInfo;
    import android.text.TextUtils;
    
    import com.google.gson.Gson;
    import com.google.gson.reflect.TypeToken;
    
    import java.lang.reflect.Type;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Date;
    import java.util.List;
    import java.util.Locale;
    
    public class PackageUtils {
        private Context context;
    
    
        public PackageUtils(Context context) {
            this.context = context;
        }
    
        public static AllPackageInfos getAllPackageInfos(Context context) {
            PackageManager packageManager = context.getPackageManager();
            AllPackageInfos infos = new AllPackageInfos();
            List<PackageInfo> installedPackages = context.getPackageManager().getInstalledPackages(0);
            for (PackageInfo info : installedPackages) {
                AllPackageInfo aInfo = new AllPackageInfo();
                aInfo.setVersionName(info.versionName);
                aInfo.setVersionCode(info.versionCode);
                aInfo.setPackageName(info.packageName);
                aInfo.setFirstInstallTime(info.firstInstallTime);
                aInfo.setLastUpdateTime(info.lastUpdateTime);
                aInfo.setName(packageManager.getApplicationLabel(info.applicationInfo).toString());
                aInfo.setSystem((ApplicationInfo.FLAG_SYSTEM & info.applicationInfo.flags) != 0);//是否为系统文件
                infos.add(aInfo);
            }
            return infos;
        }
    
        public static String getAllPackageInfo(Context context) {
            try {
                Type founderListType = new TypeToken<AllPackageInfos>() {
                }.getType();
                return new Gson().toJson(getAllPackageInfos(context), founderListType);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return "";
        }
    
        public static void log(Context context) {
            List<PackageUtils.AllPackageInfo> infos = getAllPackageInfos(context).getInfos();
            for (int i = 0; i < infos.size(); i++) {
                if (infos.get(i).isSystem()) {
                    android.util.Log.i("调试信息", "系统应用: " + infos.get(i).getName() + " = " + infos.get(i).getPackageName());
                }
            }
            for (int i = 0; i < infos.size(); i++) {
                if (!infos.get(i).isSystem()) {
                    android.util.Log.i("调试信息", "用户应用: " + infos.get(i).getName() + " = " + infos.get(i).getPackageName());
                }
            }
    
        }
    
    
        /**
         * 检测该包名所对应的应用是否存在
         *
         * @param packageName 包名
         * @return 指定应用是否已安装
         */
        public static boolean isInstall(Context context, String packageName) {
    
            PackageManager packageManager = context.getApplicationContext().getPackageManager();
            if (packageName == null || TextUtils.isEmpty(packageName)) {
                return false;
            }
    
            try {
                context.getPackageManager().getApplicationInfo(packageName, PackageManager.GET_UNINSTALLED_PACKAGES);
                return true;
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
    
            try {
                PackageInfo packageInfo = packageManager.getPackageInfo(packageName, PackageManager.GET_GIDS);
                return packageInfo != null;
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
                return false;
            }
        }
    
        /**
         * 将时间戳转换为时间
         */
        public static String stampToDate(long time) {
            String res;
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINA);
            Date date = new Date(time);
            res = simpleDateFormat.format(date);
            return res;
        }
    
        public static class AllPackageInfos {
            private List<AllPackageInfo> packageInfos;
    
            public AllPackageInfos() {
                this.packageInfos = new ArrayList<>();
            }
    
            public List<AllPackageInfo> getInfos() {
                return packageInfos;
            }
    
            public void add(AllPackageInfo allPackageInfo) {
                packageInfos.add(allPackageInfo);
            }
        }
    
        public static class AllPackageInfo {
            /**
             * 版本名称
             */
            private String versionName;
            /**
             * 应用名称
             */
            private String name;
            /**
             * 版本号
             */
            private int versionCode;
            /**
             * 包名
             */
            private String packageName;
            /**
             * 是否是系统应用
             */
            private boolean system;
            /**
             * 第一次安装时间
             */
            private String firstInstallTime;
            /**
             * 最后更新时间
             */
            private String lastUpdateTime;
    
            public boolean isSystem() {
                return system;
            }
    
            public void setSystem(boolean system) {
                this.system = system;
            }
    
            public String getName() {
                return name;
            }
    
            public void setName(String name) {
                this.name = name;
            }
    
            public String getVersionName() {
                return versionName;
            }
    
            public void setVersionName(String versionName) {
                this.versionName = versionName;
            }
    
            public int getVersionCode() {
                return versionCode;
            }
    
            public void setVersionCode(int versionCode) {
                this.versionCode = versionCode;
            }
    
            public String getPackageName() {
                return packageName;
            }
    
            public void setPackageName(String packageName) {
                this.packageName = packageName;
            }
    
            public String getFirstInstallTime() {
                return firstInstallTime;
            }
    
            public void setFirstInstallTime(long firstInstallTime) {
                this.firstInstallTime = stampToDate(firstInstallTime);
            }
    
            public String getLastUpdateTime() {
                return lastUpdateTime;
            }
    
            public void setLastUpdateTime(long lastUpdateTime) {
                this.lastUpdateTime = stampToDate(lastUpdateTime);
            }
        }
    
        public static boolean isSystemApp(Context context, Intent intent) {
            PackageManager pm = context.getPackageManager();
            ComponentName cn = intent.getComponent();
            String packageName = null;
            if (cn == null) {
                ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
                if ((info != null) && (info.activityInfo != null)) {
                    packageName = info.activityInfo.packageName;
                }
            } else {
                packageName = cn.getPackageName();
            }
            if (packageName != null) {
                try {
                    PackageInfo info = pm.getPackageInfo(packageName, 0);
                    return (info != null) && (info.applicationInfo != null) &&
                            ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
                } catch (PackageManager.NameNotFoundException e) {
                    return false;
                }
            } else {
                return false;
            }
        }
    }