截取Android设备上已安装的应用程序

Question

我在数据库中获得了已安装应用程序的包名称和标签列表，现在我想拦截已安装的应用程序和数据库。 假设任何应用程序从设备中删除然后我想要更改数据库。 因为我使用广播接收器，但我的代码不起作用。

PackageManager pm = this.getPackageManager();
List < ApplicationInfo > list = getPackageManager().getInstalledApplications(PackageManager.PERMISSION_GRANTED);
for (int n = 0; n < list.size(); n++) {
    Apps.add(list.get(n).loadLabel(pm).toString());
    AppsP.add(list.get(n).packageName.toString());
    Log.w("Installed Applications", list.get(n).loadLabel(pm).toString());
    Log.w("Installed Applications Package", list.get(n).packageName.toString());


    ...
    In other class

    public class PackageReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {
            // TODO Auto-generated method stub
            if (intent.getAction().equalsIgnoreCase(Intent.ACTION_PACKAGE_ADDED)) {
                String added_package = intent.getData().toString();
                Log.i("PackageReceiver", "Package Added = " + added_package);

            } else if (intent.getAction().equalsIgnoreCase(Intent.ACTION_PACKAGE_REMOVED)) {
                String removed_package = intent.getData().toString();
                MyDBHelper DB = new MyDBHelper(context);
                Log.i("PackageReceiver", "Package removed = " + removed_package);
                DB.open();
                DB.deleteStmt = DB.db.compileStatement(QueryManager.ApplicationDelete);
                DB.deleteStmt.bindString(1, removed_package);
                DB.close();

            }

任何帮助？

Answer 1

你想要实现什么？

如果您试图阻止卸载或安装应用程序，那么我担心您不能这样做。 您所能做的就是要求收到通知。

---

编辑：

您是否还在清单中指定了intent-filter？ 例如：

<manifest>
    ....
    <application>
        ....
        <receiver>
            <intent-filter>
                <action android:name="android.intent.action.PACKAGE_ADDED">
                <action android:name="android.intent.action.PACKAGE_REMOVED">
            </intent-filter>
        </receiver>
    </application>
</manifest>

Answer 2

    intentAPP.addAction(Intent.ACTION_PACKAGE_ADDED);
            intentAPP.addAction(Intent.ACTION_PACKAGE_CHANGED);
            intentAPP.addAction(Intent.ACTION_PACKAGE_DATA_CLEARED);
            intentAPP.addAction(Intent.ACTION_PACKAGE_INSTALL);
            intentAPP.addAction(Intent.ACTION_PACKAGE_REMOVED);
            intentAPP.addAction(Intent.ACTION_PACKAGE_REPLACED);
            intentAPP.addAction(Intent.ACTION_PACKAGE_RESTARTED);

//for storing list in db

    for (int i = 0; i < AppsP.size() && i < Apps.size(); i++) {

                    DB.insertStmt.bindString(1, URLDecoder.decode(AppsP.get(i)));
                    DB.insertStmt.bindString(2, URLDecoder.decode(Apps.get(i)));
                    DB.insertStmt.bindString(3, 1 + "");
                    DB.insertStmt.bindString(4, "false");
                    DB.insertStmt.executeInsert();

                }

//adding package notification
if (intent.getAction().equalsIgnoreCase(Intent.ACTION_PACKAGE_ADDED)) {
            String added_package = intent.getData().toString();
            Log.i("PackageReceiver", "Package Added = " + added_package);
            Intent Intent_add = new Intent();
            Intent_add.setClass(context, ServiceAppsAdd.class);
            Intent_add.putExtra("Package_Name", added_package.substring(8));
            Intent_add.putExtra("Status", status_new);
            context.startService(Intent_add);