PackageManager基础

发表于 更新于 分类于 Changyan：

一.代码位置

二.引用方式

  1. 将JitPack存储库添加到您的构建文件中
    将其添加到存储库末尾的root build.gradle中：

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    allprojects {
          repositories {
          ...
          maven { url 'https://jitpack.io' }
          }
    }

  2. 添加依赖项

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    dependencies {
          ...
          implementation 'com.github.itemuse:XLib:Tag'
    }

  3. 初始化 Application中init

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    import cn.xy.library.XApp;
          ...
    @Override
    public void onCreate() {
          super.onCreate();
          XApp.init(this);
    }

  4. AndroidManifest.xml中添加UID

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    android:sharedUserId="android.uid.system"

三.demo

四.PackageManager几个方法

  • 判断APP是否安装

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/**
 * Return whether the app is installed.
 *
 * @param pkgName The name of the package.
 * @return {@code true}: yes<br>{@code false}: no
 */
public static boolean isAppInstalled(@NonNull final String pkgName) {
    PackageManager packageManager = XApp.getApp().getPackageManager();
    try {
        return packageManager.getApplicationInfo(pkgName, 0) != null;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return false;
    }
}

  • 判断APP是否DEBUG版本

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/**
  * Return whether it is a debug application.
  *
  * @param packageName The name of the package.
  * @return {@code true}: yes<br>{@code false}: no
  */
 public static boolean isAppDebug(final String packageName) {
     if (isSpace(packageName)) return false;
     try {
         PackageManager pm = XApp.getApp().getPackageManager();
         ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
         return ai != null && (ai.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
     } catch (PackageManager.NameNotFoundException e) {
         e.printStackTrace();
         return false;
     }
 }

  • 判断APP是否系统应用

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/**
 * Return whether it is a system application.
 *
 * @param packageName The name of the package.
 * @return {@code true}: yes<br>{@code false}: no
 */
public static boolean isAppSystem(final String packageName) {
    if (isSpace(packageName)) return false;
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        ApplicationInfo ai = pm.getApplicationInfo(packageName, 0);
        return ai != null && (ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return false;
    }
}

  • 判断APP是否正在运行

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/**
 * Return whether application is running.
 *
 * @param pkgName The name of the package.
 * @return {@code true}: yes<br>{@code false}: no
 */
public static boolean isAppRunning(@NonNull final String pkgName) {
    int uid;
    PackageManager packageManager = XApp.getApp().getPackageManager();
    try {
        ApplicationInfo ai = packageManager.getApplicationInfo(pkgName, 0);
        if (ai == null) return false;
        uid = ai.uid;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return false;
    }
    ActivityManager am = (ActivityManager) XApp.getApp().getSystemService(Context.ACTIVITY_SERVICE);
    if (am != null) {
        List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(Integer.MAX_VALUE);
        if (taskInfo != null && taskInfo.size() > 0) {
            for (ActivityManager.RunningTaskInfo aInfo : taskInfo) {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                    if (pkgName.equals(aInfo.baseActivity.getPackageName())) {
                        return true;
                    }
                }
            }
        }
        List<ActivityManager.RunningServiceInfo> serviceInfo = am.getRunningServices(Integer.MAX_VALUE);
        if (serviceInfo != null && serviceInfo.size() > 0) {
            for (ActivityManager.RunningServiceInfo aInfo : serviceInfo) {
                if (uid == aInfo.uid) {
                    return true;
                }
            }
        }
    }
    return false;
}

  • 获取APP图标

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/**
 * Return the application's icon.
 *
 * @param packageName The name of the package.
 * @return the application's icon
 */
public static Drawable getAppIcon(final String packageName) {
    if (isSpace(packageName)) return null;
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        PackageInfo pi = pm.getPackageInfo(packageName, 0);
        return pi == null ? null : pi.applicationInfo.loadIcon(pm);
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return null;
    }
}

  • 获取APP名

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/**
 * Return the application's name.
 *
 * @param packageName The name of the package.
 * @return the application's name
 */
public static String getAppName(final String packageName) {
    if (isSpace(packageName)) return "";
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        PackageInfo pi = pm.getPackageInfo(packageName, 0);
        return pi == null ? null : pi.applicationInfo.loadLabel(pm).toString();
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return "";
    }
}

  • 获取APP路径

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/**
 * Return the application's path.
 *
 * @param packageName The name of the package.
 * @return the application's path
 */
public static String getAppPath(final String packageName) {
    if (isSpace(packageName)) return "";
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        PackageInfo pi = pm.getPackageInfo(packageName, 0);
        return pi == null ? null : pi.applicationInfo.sourceDir;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return "";
    }
}

  • 获取APP版名

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/**
 * Return the application's version name.
 *
 * @param packageName The name of the package.
 * @return the application's version name
 */
public static String getAppVersionName(final String packageName) {
    if (isSpace(packageName)) return "";
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        PackageInfo pi = pm.getPackageInfo(packageName, 0);
        return pi == null ? null : pi.versionName;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return "";
    }
}

  • 获取APP版本号

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/**
 * Return the application's version code.
 *
 * @param packageName The name of the package.
 * @return the application's version code
 */
public static int getAppVersionCode(final String packageName) {
    if (isSpace(packageName)) return -1;
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        PackageInfo pi = pm.getPackageInfo(packageName, 0);
        return pi == null ? -1 : pi.versionCode;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return -1;
    }
}

  • 获取APP签名

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/**
 * Return the application's signature.
 *
 * @param packageName The name of the package.
 * @return the application's signature
 */
public static Signature[] getAppSignature(final String packageName) {
    if (isSpace(packageName)) return null;
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        @SuppressLint("PackageManagerGetSignatures")
        PackageInfo pi = pm.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
        return pi == null ? null : pi.signatures;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return null;
    }
}

  • 获取APP的UI-ID

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/**
 * Return the application's user-ID.
 *
 * @param pkgName The name of the package.
 * @return the application's signature for MD5 value
 */
public static int getAppUid(String pkgName) {
    try {
        ApplicationInfo ai = XApp.getApp().getPackageManager().getApplicationInfo(pkgName, 0);
        if (ai != null) {
            return ai.uid;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return -1;
}

  • 获取APP信息

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/**
 * Return the application's information.
 * <ul>
 * <li>name of package</li>
 * <li>icon</li>
 * <li>name</li>
 * <li>path of package</li>
 * <li>version name</li>
 * <li>version code</li>
 * <li>is system</li>
 * </ul>
 *
 * @param packageName The name of the package.
 * @return the application's information
 */
public static AppInfo getAppInfo(final String packageName) {
    try {
        PackageManager pm = XApp.getApp().getPackageManager();
        if (pm == null) return null;
        return getBean(pm, pm.getPackageInfo(packageName, 0));
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return null;
    }
}

  • 获取/设置APP启用/禁用状态

- 设置

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/**
 * @param packageName to hidden or show app
 * @param enable true ENABLED ; false DISABLED
 * need android:sharedUserId="android.uid.system"
 */
public void changeAppState(String packageName, boolean enable){
    try {
        PackageManager packageManager = XApp.getApp().getPackageManager();
        if(enable){
            packageManager.setApplicationEnabledSetting(packageName,PackageManager.COMPONENT_ENABLED_STATE_ENABLED,0);
        }else{
            packageManager.setApplicationEnabledSetting(packageName,PackageManager.COMPONENT_ENABLED_STATE_DISABLED,0);
        }
    } catch (Exception e) {
        XLog.debug(e.getMessage());
    }
}

- 获取

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   /**
 * @return
 * -1 no intalled
 *  1 ENABLED
 *  2 DISABLED
 *
 */
public int getAppState(String packageName) {
    try {
        PackageManager packageManager = XApp.getApp().getPackageManager();
        return packageManager.getApplicationEnabledSetting(packageName);
    } catch (Exception e) {
        XLog.debug(e.getMessage());
        return -1;
    }
}

  • 获取/设置Activity启用/禁用状态

- 获取

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/**
 * @return
 * -1 no intalled
 *  1 ENABLED
 *  2 DISABLED
 */
public int getActivityState(ComponentName componentName){
    try {
        PackageManager packageManager = XApp.getApp().getPackageManager();
        return packageManager.getComponentEnabledSetting(componentName);
    } catch (Exception e){
        return -1;
    }
}

- 设置

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/**
 * @param componentName to hidden or show activity
 * @param enable true ENABLED ; false DISABLED
 * need android:sharedUserId="android.uid.system"
 */
public void changActivityState(ComponentName componentName,boolean enable){
    try {
        PackageManager packageManager = XApp.getApp().getPackageManager();
        if (enable){
            packageManager.setComponentEnabledSetting(componentName,PackageManager.COMPONENT_ENABLED_STATE_ENABLED,0);
        }else {
            packageManager.setComponentEnabledSetting(componentName,PackageManager.COMPONENT_ENABLED_STATE_DISABLED,0);
        }
    } catch (Exception e){
        XLog.debug(e.getMessage());
    }
}

- ComponentName mComponentName

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mComponentName = new ComponentName("cn.xy.windowmanager","cn.xy.windowmanager.MainActivity")

  • 获取APP信息

    • 获取系统所有APP信息 
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      /**
       * 获取系统所有APP信息
       * Return the applications' information.
       *
       * @return the applications' information
       */
      public static List<AppInfo> getAppsInfo() {
          List<AppInfo> list = new ArrayList<>();
          PackageManager pm = XApp.getApp().getPackageManager();
          if (pm == null) return list;
          List<PackageInfo> installedPackages = pm.getInstalledPackages(0);
          for (PackageInfo pi : installedPackages) {
              AppInfo ai = getBean(pm, pi);
              if (ai == null) continue;
              list.add(ai);
          }
          return list;
      }
    • 获取某已安装APP信息 
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      /**
       * Return the application's information.
       * <ul>
       * <li>name of package</li>
       * <li>icon</li>
       * <li>name</li>
       * <li>path of package</li>
       * <li>version name</li>
       * <li>version code</li>
       * <li>is system</li>
       * </ul>
       *
       * @param packageName The name of the package.
       * @return the application's information
       */
      public static AppInfo getAppInfo(final String packageName) {
          try {
              PackageManager pm = XApp.getApp().getPackageManager();
              if (pm == null) return null;
              return getBean(pm, pm.getPackageInfo(packageName, 0));
          } catch (PackageManager.NameNotFoundException e) {
              e.printStackTrace();
              return null;
          }
      }
    • 获取某apk文件信息 
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      /**
       * Return the application's package information.
       * 
       * @return the application's package information
       */
      public static XApplication.AppInfo getApkInfo(final String apkFilePath) {
          if (isSpace(apkFilePath)) return null;
          PackageManager pm = XApp.getApp().getPackageManager();
          if (pm == null) return null;
          PackageInfo pi = pm.getPackageArchiveInfo(apkFilePath, 0);
          if (pi == null) return null;
          ApplicationInfo appInfo = pi.applicationInfo;
          appInfo.sourceDir = apkFilePath;
          appInfo.publicSourceDir = apkFilePath;
          return getBean(pm, pi);
      }
    • getBean 
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      private static AppInfo getBean(final PackageManager pm, final PackageInfo pi) {
          if (pi == null) return null;
          ApplicationInfo ai = pi.applicationInfo;
          String packageName = pi.packageName;
          String name = ai.loadLabel(pm).toString();
          Drawable icon = ai.loadIcon(pm);
          String packagePath = ai.sourceDir;
          String versionName = pi.versionName;
          int versionCode = pi.versionCode;
          boolean isSystem = (ApplicationInfo.FLAG_SYSTEM & ai.flags) != 0;
          return new AppInfo(packageName, name, icon, packagePath, versionName, versionCode, isSystem);
      }