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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.view;
     18 
     19 import com.example.android.apis.R;
     20 
     21 import android.app.Activity;
     22 import android.os.Bundle;
     23 import android.view.Gravity;
     24 import android.view.View;
     25 import android.view.animation.Animation;
     26 import android.view.animation.AnimationUtils;
     27 import android.widget.Button;
     28 import android.widget.TextSwitcher;
     29 import android.widget.TextView;
     30 import android.widget.ViewSwitcher;
     31 
     32 /**
     33  * Uses a TextSwitcher.
     34  */
     35 public class TextSwitcher1 extends Activity implements ViewSwitcher.ViewFactory,
     36         View.OnClickListener {
     37 
     38     private TextSwitcher mSwitcher;
     39 
     40     private int mCounter = 0;
     41 
     42     @Override
     43     protected void onCreate(Bundle savedInstanceState) {
     44         super.onCreate(savedInstanceState);
     45 
     46         setContentView(R.layout.text_switcher_1);
     47 
     48         mSwitcher = (TextSwitcher) findViewById(R.id.switcher);
     49         mSwitcher.setFactory(this);
     50 
     51         Animation in = AnimationUtils.loadAnimation(this,
     52                 android.R.anim.fade_in);
     53         Animation out = AnimationUtils.loadAnimation(this,
     54                 android.R.anim.fade_out);
     55         mSwitcher.setInAnimation(in);
     56         mSwitcher.setOutAnimation(out);
     57 
     58         Button nextButton = (Button) findViewById(R.id.next);
     59         nextButton.setOnClickListener(this);
     60 
     61         updateCounter();
     62     }
     63 
     64     public void onClick(View v) {
     65         mCounter++;
     66         updateCounter();
     67     }
     68 
     69     private void updateCounter() {
     70         mSwitcher.setText(String.valueOf(mCounter));
     71     }
     72 
     73     public View makeView() {
     74         TextView t = new TextView(this);
     75         t.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
     76         t.setTextSize(36);
     77         return t;
     78     }
     79 }
     80