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      1 /*
      2  * Copyright (C) 2009 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 // Need the following import to get access to the app resources, since this
     20 // class is in a sub-package.
     21 import com.example.android.apis.R;
     22 
     23 import android.app.Activity;
     24 import android.os.Bundle;
     25 import android.view.View;
     26 import android.view.animation.AnimationUtils;
     27 import android.view.animation.Animation;
     28 import android.view.animation.TranslateAnimation;
     29 import android.widget.AdapterView;
     30 import android.widget.ArrayAdapter;
     31 import android.widget.Spinner;
     32 
     33 public class Animation3 extends Activity implements AdapterView.OnItemSelectedListener {
     34     private static final String[] INTERPOLATORS = {
     35             "Accelerate", "Decelerate", "Accelerate/Decelerate",
     36             "Anticipate", "Overshoot", "Anticipate/Overshoot",
     37             "Bounce"
     38     };
     39 
     40     @Override
     41     public void onCreate(Bundle savedInstanceState) {
     42         super.onCreate(savedInstanceState);
     43         setContentView(R.layout.animation_3);
     44 
     45         Spinner s = (Spinner) findViewById(R.id.spinner);
     46         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
     47                 android.R.layout.simple_spinner_item, INTERPOLATORS);
     48         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
     49         s.setAdapter(adapter);
     50         s.setOnItemSelectedListener(this);
     51     }
     52 
     53     public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
     54         final View target = findViewById(R.id.target);
     55         final View targetParent = (View) target.getParent();
     56 
     57         Animation a = new TranslateAnimation(0.0f,
     58                 targetParent.getWidth() - target.getWidth() - targetParent.getPaddingLeft() -
     59                 targetParent.getPaddingRight(), 0.0f, 0.0f);
     60         a.setDuration(1000);
     61         a.setStartOffset(300);
     62         a.setRepeatMode(Animation.RESTART);
     63         a.setRepeatCount(Animation.INFINITE);
     64 
     65         switch (position) {
     66             case 0:
     67                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     68                         android.R.anim.accelerate_interpolator));
     69                 break;
     70             case 1:
     71                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     72                         android.R.anim.decelerate_interpolator));
     73                 break;
     74             case 2:
     75                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     76                         android.R.anim.accelerate_decelerate_interpolator));
     77                 break;
     78             case 3:
     79                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     80                         android.R.anim.anticipate_interpolator));
     81                 break;
     82             case 4:
     83                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     84                         android.R.anim.overshoot_interpolator));
     85                 break;
     86             case 5:
     87                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     88                         android.R.anim.anticipate_overshoot_interpolator));
     89                 break;
     90             case 6:
     91                 a.setInterpolator(AnimationUtils.loadInterpolator(this,
     92                         android.R.anim.bounce_interpolator));
     93                 break;
     94         }
     95 
     96         target.startAnimation(a);
     97     }
     98 
     99     public void onNothingSelected(AdapterView<?> parent) {
    100     }
    101 }