1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.apis.content; 18 19 import android.app.Activity; 20 //import android.content.UndoManager; 21 import android.os.Parcelable; 22 import android.view.View; 23 import android.widget.Button; 24 import com.example.android.apis.R; 25 26 import android.os.Bundle; 27 import android.widget.TextView; 28 29 /** 30 * Simple example of using an UndoManager for editing text in a TextView. 31 */ 32 public class TextUndoActivity extends Activity { 33 //UndoManager mUndoManager; 34 35 @Override onCreate(Bundle savedInstanceState)36 protected void onCreate(Bundle savedInstanceState) { 37 super.onCreate(savedInstanceState); 38 39 /* 40 mUndoManager = new UndoManager(); 41 if (savedInstanceState != null) { 42 Parcelable p = savedInstanceState.getParcelable("undo"); 43 if (p != null) { 44 mUndoManager.restoreInstanceState(p); 45 } 46 } 47 */ 48 49 setContentView(R.layout.text_undo); 50 51 /* 52 ((TextView)findViewById(R.id.text)).setUndoManager(mUndoManager, "text"); 53 ((Button)findViewById(R.id.undo)).setOnClickListener(new View.OnClickListener() { 54 @Override 55 public void onClick(View v) { 56 mUndoManager.undo(null, 1); 57 } 58 }); 59 ((Button)findViewById(R.id.redo)).setOnClickListener(new View.OnClickListener() { 60 @Override 61 public void onClick(View v) { 62 mUndoManager.redo(null, 1); 63 } 64 }); 65 */ 66 } 67 68 @Override onSaveInstanceState(Bundle outState)69 protected void onSaveInstanceState(Bundle outState) { 70 super.onSaveInstanceState(outState); 71 //outState.putParcelable("undo", mUndoManager.saveInstanceState()); 72 } 73 } 74