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      1 /*
      2  * Copyright (C) 2007 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.app;
     18 
     19 import com.example.android.apis.R;
     20 
     21 import android.app.Activity;
     22 import android.content.SharedPreferences;
     23 import android.os.Bundle;
     24 import android.view.View;
     25 import android.view.View.OnClickListener;
     26 import android.widget.Button;
     27 import android.widget.TextView;
     28 
     29 /**
     30  * Sub-activity that is executed by the redirection example when input is needed
     31  * from the user.
     32  */
     33 public class RedirectGetter extends Activity
     34 {
     35     private String mTextPref;
     36     private TextView mText;
     37 
     38     @Override
     39     protected void onCreate(Bundle savedInstanceState)
     40     {
     41         super.onCreate(savedInstanceState);
     42 
     43         setContentView(R.layout.redirect_getter);
     44 
     45         // Watch for button clicks.
     46         Button applyButton = (Button)findViewById(R.id.apply);
     47         applyButton.setOnClickListener(mApplyListener);
     48 
     49         // The text being set.
     50         mText = (TextView)findViewById(R.id.text);
     51 
     52         // Display the stored values, or if not stored initialize with an empty String
     53         loadPrefs();
     54     }
     55 
     56     private final void loadPrefs()
     57     {
     58         // Retrieve the current redirect values.
     59         // NOTE: because this preference is shared between multiple
     60         // activities, you must be careful about when you read or write
     61         // it in order to keep from stepping on yourself.
     62         SharedPreferences preferences = getSharedPreferences("RedirectData", 0);
     63 
     64         mTextPref = preferences.getString("text", null);
     65         if (mTextPref != null) {
     66             mText.setText(mTextPref);
     67         } else {
     68             mText.setText("");
     69         }
     70     }
     71 
     72     private OnClickListener mApplyListener = new OnClickListener()
     73     {
     74         public void onClick(View v)
     75         {
     76             SharedPreferences preferences = getSharedPreferences("RedirectData", 0);
     77             SharedPreferences.Editor editor = preferences.edit();
     78             editor.putString("text", mText.getText().toString());
     79 
     80             if (editor.commit()) {
     81                 setResult(RESULT_OK);
     82             }
     83 
     84             finish();
     85         }
     86     };
     87 }
     88