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Update fragment samples to show back stacks and layout.

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Change-Id: I016f87dc3b7433d0600a9a9308f666a36c5a98ca
This commit is contained in:
Dianne Hackborn
2010-05-06 11:57:56 -07:00
parent c52dc95107
commit d2d93d0b17
6 changed files with 132 additions and 23 deletions
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9
samples/ApiDemos/AndroidManifest.xml
View File

@@ -209,7 +209,14 @@
<!-- Fragment Samples -->
<activity android:name=".app.SimpleFragment" android:label="@string/simple_fragment">
<activity android:name=".app.FragmentStack" android:label="@string/simple_fragment">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>
<activity android:name=".app.FragmentLayout" android:label="@string/layout_fragment">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />

34
samples/ApiDemos/res/layout/fragment_layout.xml Normal file
View File

@@ -0,0 +1,34 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2010 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.
-->
<!-- Top-level content view for the layout fragment sample. -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:padding="4dip"
android:gravity="center_horizontal"
android:layout_width="match_parent" android:layout_height="match_parent">
<fragment android:name="com.example.android.apis.app.FragmentLayout$FirstFragment"
android:id="@+id/fragment1"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="1" />
<fragment android:name="com.example.android.apis.app.FragmentLayout$SecondFragment"
android:id="@+id/fragment2"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>

2
samples/ApiDemos/res/layout/simple_fragment.xml → samples/ApiDemos/res/layout/fragment_stack.xml
View File

@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2007 The Android Open Source Project
<!-- Copyright (C) 2010 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.

4
samples/ApiDemos/res/values/strings.xml
View File

@@ -83,9 +83,11 @@
<string name="redirect_getter">Enter the text that will be used by the main activity. Press back to cancel.</string>
<string name="apply">Apply</string>
<string name="simple_fragment">App/Fragment/Simple</string>
<string name="simple_fragment">App/Fragment/Stack</string>
<string name="next">Next</string>
<string name="layout_fragment">App/Fragment/Layout</string>
<string name="activity_menu">App/Activity/Menu</string>
<string name="open_menu">Open menu</string>
<string name="close_menu">Close menu</string>

66
samples/ApiDemos/src/com/example/android/apis/app/FragmentLayout.java Normal file
View File

@@ -0,0 +1,66 @@
/*
* Copyright (C) 2010 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.apis.app;
import com.example.android.apis.R;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class FragmentLayout extends Activity {
View mFirstFragmentView;
View mSecondFragmentView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_layout);
mFirstFragmentView = findViewById(R.id.fragment1);
mSecondFragmentView = findViewById(R.id.fragment2);
}
static class FirstFragment extends Fragment {
// Explicit constructor needed for inflation.
public FirstFragment() {
}
public View onCreateView(LayoutInflater inflater, ViewGroup container) {
return inflater.inflate(R.layout.hello_world, container, false);
}
}
static class SecondFragment extends Fragment {
// Explicit constructor needed for inflation.
public SecondFragment() {
}
public View onCreateView(LayoutInflater inflater, ViewGroup container) {
View v = inflater.inflate(R.layout.hello_world, container, false);
View tv = v.findViewById(R.id.text);
((TextView)tv).setText("Second Hello World!");
return v;
}
}
}

40
samples/ApiDemos/src/com/example/android/apis/app/SimpleFragment.java → samples/ApiDemos/src/com/example/android/apis/app/FragmentStack.java
View File

@@ -29,49 +29,49 @@ import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class SimpleFragment extends Activity {
int mWhichFragment;
Fragment mCurFragment;
public class FragmentStack extends Activity {
int mStackLevel;
Fragment mLastFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.simple_fragment);
switchToFragment(0);
setContentView(R.layout.fragment_stack);
addFragmentToStack();
// Watch for button clicks.
Button button = (Button)findViewById(R.id.next);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
switchToFragment(mWhichFragment == 0 ? 1 : 0);
addFragmentToStack();
}
});
}
void switchToFragment(int which) {
mWhichFragment = which;
Fragment newFragment = which == 0
? new FirstFragment() : new SecondFragment();
void addFragmentToStack() {
mStackLevel++;
Fragment newFragment = new CountingFragment(mStackLevel);
FragmentTransaction ft = openFragmentTransaction();
if (mCurFragment != null) {
ft.remove(mCurFragment);
if (mLastFragment != null) {
ft.remove(mLastFragment);
}
ft.add(newFragment, R.id.simple_fragment);
mCurFragment = newFragment;
mLastFragment = newFragment;
ft.addToBackStack();
ft.commit();
}
class FirstFragment extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container) {
return inflater.inflate(R.layout.hello_world, container, false);
class CountingFragment extends Fragment {
final int mNum;
public CountingFragment(int num) {
mNum = num;
}
}
class SecondFragment extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container) {
View v = inflater.inflate(R.layout.hello_world, container, false);
View tv = v.findViewById(R.id.text);
((TextView)tv).setText("Second Hello World!");
((TextView)tv).setText("Fragment #" + mNum);
return v;
}
}