安卓不得不收藏的工具类之获取APP相关的信息

package com.blankj.utilcode.utils;import android.app.ActivityManager;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.graphics.drawable.Drawable;import android.net.Uri;import java.io.File;import java.util.ArrayList;import java.util.List;/** * <pre> *     desc  : App相关工具类 * </pre> */public class AppUtils {    private AppUtils() {        throw new UnsupportedOperationException("u can't fuck me...");    }    /**     * 安装App     * <p>根据路径安装App</p>     *     * @param context  上下文     * @param filePath 文件路径     */    public static void installApp(Context context, String filePath) {        installApp(context, new File(filePath));    }    /**     * 安装App     * <p>根据文件安装App</p>     *     * @param context 上下文     * @param file    文件     */    public static void installApp(Context context, File file) {        Intent intent = new Intent(Intent.ACTION_VIEW);        intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        context.startActivity(intent);    }    /**     * 卸载指定包名的App     *     * @param context     上下文     * @param packageName 包名     */    public void uninstallApp(Context context, String packageName) {        Intent intent = new Intent(Intent.ACTION_DELETE);        intent.setData(Uri.parse("package:" + packageName));        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        context.startActivity(intent);    }    /**     * 封装App信息的Bean类     */    public static class AppInfo {        private String name;        private Drawable icon;        private String packageName;        private String packagePath;        private String versionName;        private int versionCode;        private boolean isSD;        private boolean isUser;        public Drawable getIcon() {            return icon;        }        public void setIcon(Drawable icon) {            this.icon = icon;        }        public boolean isSD() {            return isSD;        }        public void setSD(boolean SD) {            isSD = SD;        }        public boolean isUser() {            return isUser;        }        public void setUser(boolean user) {            isUser = user;        }        public String getName() {            return name;        }        public void setName(String name) {            this.name = name;        }        public String getPackageName() {            return packageName;        }        public void setPackageName(String packagName) {            this.packageName = packagName;        }        public String getPackagePath() {            return packagePath;        }        public void setPackagePath(String packagePath) {            this.packagePath = packagePath;        }        public int getVersionCode() {            return versionCode;        }        public void setVersionCode(int versionCode) {            this.versionCode = versionCode;        }        public String getVersionName() {            return versionName;        }        public void setVersionName(String versionName) {            this.versionName = versionName;        }        /**         * @param name        名称         * @param icon        图标         * @param packageName 包名         * @param packagePath 包路径         * @param versionName 版本号         * @param versionCode 版本Code         * @param isSD        是否安装在SD卡         * @param isUser      是否是用户程序         */        public AppInfo(String name, Drawable icon, String packageName, String packagePath,                       String versionName, int versionCode, boolean isSD, boolean isUser) {            this.setName(name);            this.setIcon(icon);            this.setPackageName(packageName);            this.setPackagePath(packagePath);            this.setVersionName(versionName);            this.setVersionCode(versionCode);            this.setSD(isSD);            this.setUser(isUser);        }//        @Override//        public String toString() {//            return getName() + "\n"//                    + getIcon() + "\n"//                    + getPackageName() + "\n"//                    + getPackagePath() + "\n"//                    + getVersionName() + "\n"//                    + getVersionCode() + "\n"//                    + isSD() + "\n"//                    + isUser() + "\n";//        }    }    /**     * 获取当前App信息     * <p>AppInfo（名称，图标，包名，版本号，版本Code，是否安装在SD卡，是否是用户程序）</p>     *     * @param context 上下文     * @return 当前应用的AppInfo     */    public static AppInfo getAppInfo(Context context) {        PackageManager pm = context.getPackageManager();        PackageInfo pi = null;        try {            pi = pm.getPackageInfo(context.getApplicationContext().getPackageName(), 0);        } catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();        }        return pi != null ? getBean(pm, pi) : null;    }    /**     * 得到AppInfo的Bean     *     * @param pm 包的管理     * @param pi 包的信息     * @return AppInfo类     */    private static AppInfo getBean(PackageManager pm, PackageInfo pi) {        ApplicationInfo ai = pi.applicationInfo;        String name = ai.loadLabel(pm).toString();        Drawable icon = ai.loadIcon(pm);        String packageName = pi.packageName;        String packagePath = ai.sourceDir;        String versionName = pi.versionName;        int versionCode = pi.versionCode;        boolean isSD = (ApplicationInfo.FLAG_SYSTEM & ai.flags) != ApplicationInfo.FLAG_SYSTEM;        boolean isUser = (ApplicationInfo.FLAG_SYSTEM & ai.flags) != ApplicationInfo.FLAG_SYSTEM;        return new AppInfo(name, icon, packageName, packagePath, versionName, versionCode, isSD, isUser);    }    /**     * 获取所有已安装App信息     * <p>{@link #getBean(PackageManager, PackageInfo)}（名称，图标，包名，包路径，版本号，版本Code，是否安装在SD卡，是否是用户程序）</p>     * <p>依赖上面的getBean方法</p>     *     * @param context 上下文     * @return 所有已安装的AppInfo列表     */    public static List<AppInfo> getAllAppsInfo(Context context) {        List<AppInfo> list = new ArrayList<>();        PackageManager pm = context.getPackageManager();        // 获取系统中安装的所有软件信息        List<PackageInfo> installedPackages = pm.getInstalledPackages(0);        for (PackageInfo pi : installedPackages) {            if (pi != null) {                list.add(getBean(pm, pi));            }        }        return list;    }    /**     * 根据包名获取意图     *     * @param context     上下文     * @param packageName 包名     * @return 意图     */    private static Intent getIntentByPackageName(Context context, String packageName) {        return context.getPackageManager().getLaunchIntentForPackage(packageName);    }    /**     * 根据包名判断App是否安装     *     * @param context     上下文     * @param packageName 包名     * @return {@code true}: 已安装<br>{@code false}: 未安装     */    public static boolean isInstallApp(Context context, String packageName) {        return getIntentByPackageName(context, packageName) != null;    }    /**     * 打开指定包名的App     *     * @param context     上下文     * @param packageName 包名     * @return {@code true}: 打开成功<br>{@code false}: 打开失败     */    public static boolean openAppByPackageName(Context context, String packageName) {        Intent intent = getIntentByPackageName(context, packageName);        if (intent != null) {            context.startActivity(intent);            return true;        }        return false;    }    /**     * 打开指定包名的App应用信息界面     *     * @param context     上下文     * @param packageName 包名     */    public static void openAppInfo(Context context, String packageName) {        Intent intent = new Intent();        intent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");        intent.setData(Uri.parse("package:" + packageName));        context.startActivity(intent);    }    /**     * 可用来做App信息分享     *     * @param context 上下文     * @param info    分享信息     */    public static void shareAppInfo(Context context, String info) {        Intent intent = new Intent(Intent.ACTION_SEND);        intent.setType("text/plain");        intent.putExtra(Intent.EXTRA_TEXT, info);        context.startActivity(intent);    }    /**     * 判断当前App处于前台还是后台     * <p>需添加权限 {@code <uses-permission android:name="android.permission.GET_TASKS"/>}</p>     * <p>并且必须是系统应用该方法才有效</p>     *     * @param context 上下文     * @return {@code true}: 后台<br>{@code false}: 前台     */    public static boolean isAppBackground(Context context) {        ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);        @SuppressWarnings("deprecation")        List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks(1);        if (!tasks.isEmpty()) {            ComponentName topActivity = tasks.get(0).topActivity;            if (!topActivity.getPackageName().equals(context.getPackageName())) {                return true;            }        }        return false;    }}