How to Programmatically Clear Application Data

How to delete/clear hidden data of app in android programmatically?

try this this might help but some oem have issues with this

 private void clearData() {
            try {
                if (Build.VERSION_CODES.KITKAT <= Build.VERSION.SDK_INT) {
                    ((ActivityManager)getSystemService(ACTIVITY_SERVICE)).clearApplicationUserData();
                } else {
                    Runtime.getRuntime().exec("pm clear " + getApplicationContext().getPackageName());
                }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

Clear user own apps data programmatically

Is there a simple way to do this or do I have to write code to manually reset everything the app uses.

You have to write code to manually reset everything the app uses. This should just be a matter of deleting a handful of files. Make sure your database is closed before you try deleting it.

Clear Cache in Android Application programmatically

If you are looking for delete cache of your own application then simply delete your cache directory and its all done !

public static void deleteCache(Context context) {
    try {
        File dir = context.getCacheDir();
        deleteDir(dir);
    } catch (Exception e) { e.printStackTrace();}
}

public static boolean deleteDir(File dir) {
    if (dir != null && dir.isDirectory()) {
        String[] children = dir.list();
        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDir(new File(dir, children[i]));
            if (!success) {
                return false;
            }
        }
        return dir.delete();
    } else if(dir!= null && dir.isFile()) {
        return dir.delete();
    } else {
        return false;
    }
}

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