| /* |
| * Copyright (C) 2014 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.example.notificationlistener; |
| |
| import android.app.AlertDialog; |
| import android.app.ListActivity; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.Bundle; |
| import android.provider.Settings.Secure; |
| import android.service.notification.StatusBarNotification; |
| import android.support.v4.content.LocalBroadcastManager; |
| import android.util.Log; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.BaseAdapter; |
| import android.widget.Button; |
| import android.widget.FrameLayout; |
| import android.widget.TextView; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| |
| public class NotificationListenerActivity extends ListActivity { |
| private static final String LISTENER_PATH = "com.android.example.notificationlistener/" + |
| "com.android.example.notificationlistener.Listener"; |
| private static final String TAG = "NotificationListenerActivity"; |
| |
| private Button mLaunchButton; |
| private TextView mEmptyText; |
| private StatusAdaptor mStatusAdaptor; |
| private final BroadcastReceiver mRefreshListener = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| Log.i(TAG, "update tickle"); |
| updateList(intent.getStringExtra(Listener.EXTRA_KEY)); |
| } |
| }; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setTitle(R.string.long_app_name); |
| setContentView(R.layout.main); |
| mLaunchButton = (Button) findViewById(R.id.launch_settings); |
| mEmptyText = (TextView) findViewById(android.R.id.empty); |
| mStatusAdaptor = new StatusAdaptor(this); |
| setListAdapter(mStatusAdaptor); |
| } |
| |
| @Override |
| protected void onStop() { |
| LocalBroadcastManager.getInstance(this).unregisterReceiver(mRefreshListener); |
| super.onStop(); |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| final IntentFilter intentFilter = new IntentFilter(Listener.ACTION_REFRESH); |
| LocalBroadcastManager.getInstance(this).registerReceiver(mRefreshListener, intentFilter); |
| updateList(null); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| checkEnabled(); |
| } |
| |
| protected void onActivityResult(int requestCode, int resultCode, Intent data) { |
| checkEnabled(); |
| } |
| |
| private void checkEnabled() { |
| String listeners = Secure.getString(getContentResolver(), |
| "enabled_notification_listeners"); |
| if (listeners != null && listeners.contains(LISTENER_PATH)) { |
| mLaunchButton.setText(R.string.launch_to_disable); |
| mEmptyText.setText(R.string.waiting_for_content); |
| } else { |
| mLaunchButton.setText(R.string.launch_to_enable); |
| mEmptyText.setText(R.string.nothing_to_see); |
| AlertDialog.Builder builder = new AlertDialog.Builder(this); |
| builder.setMessage(R.string.explanation) |
| .setTitle(R.string.disabled); |
| builder.setPositiveButton(R.string.enable_it, new DialogInterface.OnClickListener() { |
| public void onClick(DialogInterface dialog, int id) { |
| launchSettings(null); |
| } |
| }); |
| builder.setNegativeButton(R.string.cancel, null); |
| builder.create().show(); |
| } |
| } |
| |
| public void launchSettings(View v) { |
| startActivityForResult( |
| new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS"), 0); |
| } |
| |
| public void dismiss(View v) { |
| Log.d(TAG, "clicked dismiss "); |
| Object tag = v.getTag(); |
| if (tag instanceof StatusBarNotification) { |
| StatusBarNotification sbn = (StatusBarNotification) tag; |
| Log.d(TAG, " on " + sbn.getKey()); |
| LocalBroadcastManager.getInstance(this). |
| sendBroadcast(new Intent(Listener.ACTION_DISMISS) |
| .putExtra(Listener.EXTRA_KEY, sbn.getKey())); |
| } |
| } |
| |
| public void launch(View v) { |
| Log.d(TAG, "clicked launch"); |
| Object tag = v.getTag(); |
| if (tag instanceof StatusBarNotification) { |
| StatusBarNotification sbn = (StatusBarNotification) tag; |
| Log.d(TAG, " on " + sbn.getKey()); |
| LocalBroadcastManager.getInstance(this). |
| sendBroadcast(new Intent(Listener.ACTION_LAUNCH) |
| .putExtra(Listener.EXTRA_KEY, sbn.getKey())); |
| } |
| } |
| |
| private void updateList(String key) { |
| if (mStatusAdaptor.requiresInitialization()) { |
| final List<StatusBarNotification> notifications = Listener.getNotifications(); |
| if (notifications != null) { |
| mStatusAdaptor.init(notifications); |
| } |
| } |
| mStatusAdaptor.update(key); |
| } |
| |
| private class StatusAdaptor extends BaseAdapter { |
| private final Context mContext; |
| private List<StatusBarNotification> mNotifications; |
| private HashMap<String, Long> mKeyToId; |
| private HashSet<String> mKeys; |
| private long mNextId; |
| private HashMap<String, View> mRecycledViews; |
| private String mUpdateKey; |
| |
| public StatusAdaptor(Context context) { |
| mContext = context; |
| mKeyToId = new HashMap<String, Long>(); |
| mKeys = new HashSet<String>(); |
| mNextId = 0; |
| mRecycledViews = new HashMap<String, View>(); |
| } |
| |
| @Override |
| public int getCount() { |
| return mNotifications == null ? 0 : mNotifications.size(); |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return mNotifications.get(position); |
| } |
| |
| @Override |
| public boolean hasStableIds() { |
| return true; |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| final StatusBarNotification sbn = mNotifications.get(position); |
| final String key = sbn.getKey(); |
| if (!mKeyToId.containsKey(key)) { |
| mKeyToId.put(key, mNextId); |
| mNextId ++; |
| } |
| return mKeyToId.get(key); |
| } |
| |
| @Override |
| public View getView(int position, View view, ViewGroup list) { |
| if (view == null) { |
| view = View.inflate(mContext, R.layout.item, null); |
| } |
| FrameLayout container = (FrameLayout) view.findViewById(R.id.remote_view); |
| View dismiss = view.findViewById(R.id.dismiss); |
| StatusBarNotification sbn = mNotifications.get(position); |
| View child; |
| if (container.getTag() instanceof StatusBarNotification && |
| container.getChildCount() > 0) { |
| // recycle the view |
| StatusBarNotification old = (StatusBarNotification) container.getTag(); |
| if (sbn.getKey().equals(mUpdateKey)) { |
| //this view is out of date, discard it |
| mUpdateKey = null; |
| } else { |
| View content = container.getChildAt(0); |
| container.removeView(content); |
| mRecycledViews.put(old.getKey(), content); |
| } |
| } |
| child = mRecycledViews.get(sbn.getKey()); |
| if (child == null) { |
| child = sbn.getNotification().contentView.apply(mContext, null); |
| } |
| container.setTag(sbn); |
| container.removeAllViews(); |
| container.addView(child); |
| dismiss.setVisibility(sbn.isClearable() ? View.VISIBLE : View.GONE); |
| dismiss.setTag(sbn); |
| return view; |
| } |
| |
| public void update(String key) { |
| if (mNotifications != null) { |
| synchronized (mNotifications) { |
| mKeys.clear(); |
| for (int i = 0; i < mNotifications.size(); i++) { |
| mKeys.add(mNotifications.get(i).getKey()); |
| } |
| mKeyToId.keySet().retainAll(mKeys); |
| } |
| if (key == null) { |
| mRecycledViews.clear(); |
| } else { |
| mUpdateKey = key; |
| mRecycledViews.remove(key); |
| } |
| Log.d(TAG, "notifyDataSetChanged"); |
| notifyDataSetChanged(); |
| } else { |
| Log.d(TAG, "missed and update"); |
| } |
| } |
| |
| public boolean requiresInitialization() { |
| return mNotifications == null; |
| } |
| |
| public void init(List<StatusBarNotification> notifications) { |
| mNotifications = notifications; |
| } |
| } |
| } |