截取Android设备上已安装的应用程序

Question

I got the list of Package name & Label of installed application in database, Now I want to interception with installed application and database. Suppose any application delete from device then I want changes in Database. for that i am using broadcast receiver but my code not works.

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();

            }

any help??

Answer 1

What, exactly are you trying to achieve?

If you are trying to prevent uninstallation or installation of apps, then I'm afraid you cannot do that. All you can do is request to be notified.

---

EDIT:

Have you also specified the intent-filter in your manifest? For example:

<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);