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/*
* Copyright (C) 2013 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.contactslist.ui;
import android.annotation.TargetApi;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.NavUtils;
import android.view.MenuItem;
import com.example.android.contactslist.BuildConfig;
import com.example.android.contactslist.util.Utils;
/**
* This class defines a simple FragmentActivity as the parent of {@link ContactDetailFragment}.
*/
public class ContactDetailActivity extends FragmentActivity {
// Defines a tag for identifying the single fragment that this activity holds
private static final String TAG = "ContactDetailActivity";
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@Override
protected void onCreate(Bundle savedInstanceState) {
if (BuildConfig.DEBUG) {
// Enable strict mode checks when in debug modes
Utils.enableStrictMode();
}
super.onCreate(savedInstanceState);
// This activity expects to receive an intent that contains the uri of a contact
if (getIntent() != null) {
// For OS versions honeycomb and higher use action bar
if (Utils.hasHoneycomb()) {
// Enables action bar "up" navigation
getActionBar().setDisplayHomeAsUpEnabled(true);
}
// Fetch the data Uri from the intent provided to this activity
final Uri uri = getIntent().getData();
// Checks to see if fragment has already been added, otherwise adds a new
// ContactDetailFragment with the Uri provided in the intent
if (getSupportFragmentManager().findFragmentByTag(TAG) == null) {
final FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
// Adds a newly created ContactDetailFragment that is instantiated with the
// data Uri
ft.add(android.R.id.content, ContactDetailFragment.newInstance(uri), TAG);
ft.commit();
}
} else {
// No intent provided, nothing to do so finish()
finish();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// Tapping on top left ActionBar icon navigates "up" to hierarchical parent screen.
// The parent is defined in the AndroidManifest entry for this activity via the
// parentActivityName attribute (and via meta-data tag for OS versions before API
// Level 16). See the "Tasks and Back Stack" guide for more information:
// http://developer.android.com/guide/components/tasks-and-back-stack.html
NavUtils.navigateUpFromSameTask(this);
return true;
}
// Otherwise, pass the item to the super implementation for handling, as described in the
// documentation.
return super.onOptionsItemSelected(item);
}
}
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