/
RemoteViewsHostActivity.java
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/
RemoteViewsHostActivity.java
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/***
Copyright (c) 2012 CommonsWare, LLC
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.
From _The Busy Coder's Guide to Advanced Android Development_
http://commonsware.com/AdvAndroid
*/
package com.commonsware.android.rv.host;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RemoteViews;
public class RemoteViewsHostActivity extends Activity {
public static final String ACTION_CALL_FOR_PLUGINS=
"com.commonsware.android.rv.host.CALL_FOR_PLUGINS";
public static final String ACTION_REGISTER_PLUGIN=
"com.commonsware.android.rv.host.REGISTER_PLUGIN";
public static final String ACTION_CALL_FOR_CONTENT=
"com.commonsware.android.rv.host.CALL_FOR_CONTENT";
public static final String ACTION_DELIVER_CONTENT=
"com.commonsware.android.rv.host.DELIVER_CONTENT";
public static final String EXTRA_COMPONENT="component";
public static final String EXTRA_CONTENT="content";
public static final String PERM_ACT_AS_PLUGIN=
"com.commonsware.android.rv.host.ACT_AS_PLUGIN";
private ComponentName pluginCN=null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
public void onResume() {
super.onResume();
IntentFilter pluginFilter=new IntentFilter();
pluginFilter.addAction(ACTION_REGISTER_PLUGIN);
pluginFilter.addAction(ACTION_DELIVER_CONTENT);
registerReceiver(plugin, pluginFilter, PERM_ACT_AS_PLUGIN, null);
if (pluginCN == null) {
sendBroadcast(new Intent(ACTION_CALL_FOR_PLUGINS));
}
}
@Override
public void onPause() {
unregisterReceiver(plugin);
super.onPause();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
new MenuInflater(this).inflate(R.menu.options, menu);
return(super.onCreateOptionsMenu(menu));
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (R.id.refresh == item.getItemId()) {
refreshPlugin();
return(true);
}
return(super.onOptionsItemSelected(item));
}
private void refreshPlugin() {
Intent call=new Intent(ACTION_CALL_FOR_CONTENT);
call.setComponent(pluginCN);
sendBroadcast(call);
}
private BroadcastReceiver plugin=new BroadcastReceiver() {
@Override
public void onReceive(Context ctxt, Intent i) {
if (ACTION_REGISTER_PLUGIN.equals(i.getAction())) {
pluginCN=(ComponentName)i.getParcelableExtra(EXTRA_COMPONENT);
}
else if (ACTION_DELIVER_CONTENT.equals(i.getAction())) {
RemoteViews rv=(RemoteViews)i.getParcelableExtra(EXTRA_CONTENT);
ViewGroup frame=(ViewGroup)findViewById(android.R.id.content);
frame.removeAllViews();
View pluginView=rv.apply(RemoteViewsHostActivity.this, frame);
frame.addView(pluginView);
}
}
};
}