New API demo for UndoManager.
Change-Id: Ic49211c771db275f27ceefa5372b005a357fce21
diff --git a/samples/ApiDemos/AndroidManifest.xml b/samples/ApiDemos/AndroidManifest.xml
index 34464a0..8490fac 100644
--- a/samples/ApiDemos/AndroidManifest.xml
+++ b/samples/ApiDemos/AndroidManifest.xml
@@ -1117,6 +1117,14 @@
</intent-filter>
</activity>
+ <activity android:name=".content.TextUndoActivity" android:label="@string/activity_text_undo">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.SAMPLE_CODE" />
+ <category android:name="android.intent.category.EMBED" />
+ </intent-filter>
+ </activity>
+
<activity android:name=".content.ResourcesLayoutReference"
android:label="@string/activity_resources_layout_reference">
<intent-filter>
diff --git a/samples/ApiDemos/res/layout/text_undo.xml b/samples/ApiDemos/res/layout/text_undo.xml
new file mode 100644
index 0000000..f7d74e8
--- /dev/null
+++ b/samples/ApiDemos/res/layout/text_undo.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+
+<!-- Demonstrates saving and restoring activity state.
+ See corresponding Java code com.android.sdk.app.SaveRestoreState.java. -->
+
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="match_parent" android:layout_height="match_parent">
+ <LinearLayout android:orientation="vertical" android:padding="4dip"
+ android:layout_width="match_parent" android:layout_height="wrap_content">
+
+ <TextView android:id="@+id/msg"
+ android:layout_width="match_parent" android:layout_height="wrap_content"
+ android:layout_weight="0" android:textAppearance="?android:attr/textAppearanceMedium"
+ android:paddingBottom="8dip"
+ android:text="@string/text_undo_msg" />
+
+ <EditText android:id="@+id/text"
+ android:layout_width="match_parent" android:layout_height="wrap_content"
+ android:layout_weight="1"
+ android:textAppearance="?android:attr/textAppearanceMedium"
+ android:freezesText="true">
+ </EditText>
+
+ <LinearLayout
+ android:orientation="horizontal"
+ android:layout_width="wrap_content"
+ android:layout_height="match_parent"
+ android:paddingTop="8dip">
+ <Button
+ android:id="@+id/undo"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="@string/undo"
+ android:layout_gravity="bottom" />
+ <Button
+ android:id="@+id/redo"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="@string/redo"
+ android:layout_gravity="bottom" />
+ </LinearLayout>
+
+ </LinearLayout>
+</ScrollView>
diff --git a/samples/ApiDemos/res/values/strings.xml b/samples/ApiDemos/res/values/strings.xml
index 5a1df82..66fa46b 100644
--- a/samples/ApiDemos/res/values/strings.xml
+++ b/samples/ApiDemos/res/values/strings.xml
@@ -421,6 +421,12 @@
<string name="styled_text">Plain, <b>bold</b>, <i>italic</i>, <b><i>bold-italic</i></b></string>
<string name="styled_text_prog">Assigned programmatically:</string>
+ <string name="activity_text_undo">Content/Undo Manager/Text</string>
+ <string name="text_undo_msg">Demonstrates simple use of UndoManager with text editing
+ in a TextView.</string>
+ <string name="undo">Undo</string>
+ <string name="redo">Redo</string>
+
<string name="activity_resources_layout_reference">Content/Resources/Layout Reference</string>
<string name="resources_layout_reference_description">Shows how to write layout
resource references, so that you can define multiple different configurations of
diff --git a/samples/ApiDemos/src/com/example/android/apis/content/TextUndoActivity.java b/samples/ApiDemos/src/com/example/android/apis/content/TextUndoActivity.java
new file mode 100644
index 0000000..dd309c9
--- /dev/null
+++ b/samples/ApiDemos/src/com/example/android/apis/content/TextUndoActivity.java
@@ -0,0 +1,69 @@
+/*
+ * 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.apis.content;
+
+import android.app.Activity;
+import android.content.UndoManager;
+import android.os.Parcelable;
+import android.view.View;
+import android.widget.Button;
+import com.example.android.apis.R;
+
+import android.os.Bundle;
+import android.widget.TextView;
+
+/**
+ * Simple example of using an UndoManager for editing text in a TextView.
+ */
+public class TextUndoActivity extends Activity {
+ UndoManager mUndoManager;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ mUndoManager = new UndoManager();
+ if (savedInstanceState != null) {
+ Parcelable p = savedInstanceState.getParcelable("undo");
+ if (p != null) {
+ mUndoManager.restoreInstanceState(p);
+ }
+ }
+
+ setContentView(R.layout.text_undo);
+
+ ((TextView)findViewById(R.id.text)).setUndoManager(mUndoManager, "text");
+ ((Button)findViewById(R.id.undo)).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mUndoManager.undo(null, 1);
+ }
+ });
+ ((Button)findViewById(R.id.redo)).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mUndoManager.redo(null, 1);
+ }
+ });
+ }
+
+ @Override
+ protected void onSaveInstanceState(Bundle outState) {
+ super.onSaveInstanceState(outState);
+ outState.putParcelable("undo", mUndoManager.saveInstanceState());
+ }
+}
