70 lines
2.5 KiB
Java
70 lines
2.5 KiB
Java
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
|
|
* use this file except in compliance with the License. You may obtain a copy of
|
|
* the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations under
|
|
* the License.
|
|
*/
|
|
|
|
package com.android.inputmethod.latin;
|
|
|
|
import android.content.Context;
|
|
import android.content.pm.ApplicationInfo;
|
|
import android.content.pm.PackageManager;
|
|
import android.os.AsyncTask;
|
|
import android.util.LruCache;
|
|
|
|
public class TargetApplicationGetter extends AsyncTask<String, Void, ApplicationInfo> {
|
|
|
|
private static final int MAX_CACHE_ENTRIES = 64; // arbitrary
|
|
private static LruCache<String, ApplicationInfo> sCache =
|
|
new LruCache<String, ApplicationInfo>(MAX_CACHE_ENTRIES);
|
|
|
|
public static ApplicationInfo getCachedApplicationInfo(final String packageName) {
|
|
if (null == packageName) return null;
|
|
return sCache.get(packageName);
|
|
}
|
|
public static void removeApplicationInfoCache(final String packageName) {
|
|
sCache.remove(packageName);
|
|
}
|
|
|
|
public interface OnTargetApplicationKnownListener {
|
|
public void onTargetApplicationKnown(final ApplicationInfo info);
|
|
}
|
|
|
|
private Context mContext;
|
|
private final OnTargetApplicationKnownListener mListener;
|
|
|
|
public TargetApplicationGetter(final Context context,
|
|
final OnTargetApplicationKnownListener listener) {
|
|
mContext = context;
|
|
mListener = listener;
|
|
}
|
|
|
|
@Override
|
|
protected ApplicationInfo doInBackground(final String... packageName) {
|
|
final PackageManager pm = mContext.getPackageManager();
|
|
mContext = null; // Bazooka-powered anti-leak device
|
|
try {
|
|
final ApplicationInfo targetAppInfo =
|
|
pm.getApplicationInfo(packageName[0], 0 /* flags */);
|
|
sCache.put(packageName[0], targetAppInfo);
|
|
return targetAppInfo;
|
|
} catch (android.content.pm.PackageManager.NameNotFoundException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onPostExecute(final ApplicationInfo info) {
|
|
mListener.onTargetApplicationKnown(info);
|
|
}
|
|
}
|