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/*
* Copyright (C) 2011 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.example.android.supportv7.app;
import android.content.Context;
import android.content.Intent;
import android.provider.Settings;
import android.support.v7.app.ActionBarActivity;
import android.support.v4.view.ActionProvider;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;
import com.example.android.supportv7.R;
/**
* This activity demonstrates how to implement an {@link android.view.ActionProvider}
* for adding functionality to the Action Bar. In particular this demo creates an
* ActionProvider for launching the system settings and adds a menu item with that
* provider.
*/
public class ActionBarSettingsActionProviderActivity extends ActionBarActivity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.action_bar_settings_action_provider, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// If this callback does not handle the item click, onPerformDefaultAction
// of the ActionProvider is invoked. Hence, the provider encapsulates the
// complete functionality of the menu item.
Toast.makeText(this, R.string.action_bar_settings_action_provider_no_handling,
Toast.LENGTH_SHORT).show();
return false;
}
public static class SettingsActionProvider extends ActionProvider {
/** An intent for launching the system settings. */
private static final Intent sSettingsIntent = new Intent(Settings.ACTION_SETTINGS);
/**
* Creates a new instance.
*
* @param context Context for accessing resources.
*/
public SettingsActionProvider(Context context) {
super(context);
}
@Override
public View onCreateActionView() {
// Inflate the action view to be shown on the action bar.
LayoutInflater layoutInflater = LayoutInflater.from(getContext());
View view = layoutInflater.inflate(R.layout.action_bar_settings_action_provider, null);
ImageButton button = (ImageButton) view.findViewById(R.id.button);
// Attach a click listener for launching the system settings.
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getContext().startActivity(sSettingsIntent);
}
});
return view;
}
@Override
public boolean onPerformDefaultAction() {
// This is called if the host menu item placed in the overflow menu of the
// action bar is clicked and the host activity did not handle the click.
getContext().startActivity(sSettingsIntent);
return true;
}
}
}
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