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  • 安卓开发_浅谈Android动画（三）

    一、LayoutAnimation布局动画

    用于为一个layout里面的控件，或者是一个ViewGroup里面的控件设置动画效果

    在res-anim文件下新建一个动画xml文件

     1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:interpolator="@android:anim/decelerate_interpolator" >
 4   
 5   <scale
 6         android:duration="1000"
 7         android:fromXScale="0.1"
 8         android:fromYScale="0.1"
 9         android:pivotX="50%"
10         android:pivotY="50%"
11         android:toXScale="1.0"
12         android:toYScale="1.0" />
13   <alpha
14         android:duration="1000"
15         android:fromAlpha="0"
16         android:toAlpha="1.0" />
17 </set>
    zoom_in

    list为列表

    //布局动画控制器
    LayoutAnimationController lac = new LayoutAnimationController(AnimationUtils.loadAnimation(this,R.anim.zoom_in));
    //动画方式 
    lac.setOrder(LayoutAnimationController.ORDER_RANDOM);
    //加载布局动画
    list.setLayoutAnimation(lac);
    //开始动画
    list.startLayoutAnimation();
    //为列表视图中选中的项添加响应事件

    效果图：

    全部代码：

     1 package other;
 2 
 3 import com.example.allcode.R;
 4 
 5 import android.app.Activity;
 6 import android.os.Bundle;
 7 import android.view.View;
 8 import android.view.animation.AnimationUtils;
 9 import android.view.animation.LayoutAnimationController;
10 import android.widget.AdapterView;
11 import android.widget.AdapterView.OnItemClickListener;
12 import android.widget.ListView;
13 import android.widget.Toast;
14 
15 public class Donghua_List extends Activity{
16     private ListView list;
17     @Override
18     protected void onCreate(Bundle savedInstanceState) {
19         // TODO Auto-generated method stub
20         super.onCreate(savedInstanceState);
21         setContentView(R.layout.donghua_layout);
22         
23         
24         list = (ListView) findViewById(R.id.listView1);
25         //布局动画控制器
26         LayoutAnimationController lac = new LayoutAnimationController(AnimationUtils.loadAnimation(this,R.anim.zoom_in));
27         //动画方式
28         lac.setOrder(LayoutAnimationController.ORDER_RANDOM);
29         //加载布局动画
30         list.setLayoutAnimation(lac);
31         //开始动画
32         list.startLayoutAnimation();
33         //为列表视图中选中的项添加响应事件
34         list.setOnItemClickListener(new OnItemClickListener() {
35 
36             @Override
37             public void onItemClick(AdapterView<?> parent, View arg1, int pos,
38                     long id) {
39                 // TODO Auto-generated method stub
40                  String result = parent.getItemAtPosition(pos).toString(); //获取选择项的值
41                     Toast.makeText(Donghua_List.this, "点击了 "+result, Toast.LENGTH_SHORT).show();//输出选中项消息
42             }
43         });
44     }
45     
46     
47 
48 }
    Donghua_list.java
     1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical" >
 6 
 7     <ListView
 8         android:id="@+id/listView1"
 9         android:entries="@array/list"          
10     
11         android:layout_width="match_parent"
12         android:layout_height="wrap_content" >
13     </ListView>
14 
15 </LinearLayout>
    donghua_layout.xml

    ------------------------------------------------------------------------------------------------------------------

    二、Drawable动画（帧动画）

    即多张连续的动画顺序播放

    核心类：AnimationDrawable 

    使用步骤：

    1、在res下创建drawable文件夹创建资源文件 xx.xml （名字随便取）

    有个属性 android:oneshot="false" 判断是否重复播放帧动画，默认false  表示循环播放，true表示只播放一次

     1 <?xml version="1.0" encoding="utf-8"?>
 2 <animation-list xmlns:android="http://schemas.android.com/apk/res/android" 
 3     android:oneshot="true"
 4     >
 5     <item android:drawable="@drawable/refresh_001" android:duration="200" />
 6     <item android:drawable="@drawable/refresh_002" android:duration="200" />
 7     <item android:drawable="@drawable/refresh_003" android:duration="200" />
 8     <item android:drawable="@drawable/refresh_004" android:duration="200" />
 9     <item android:drawable="@drawable/refresh_005" android:duration="200" />
10     <item android:drawable="@drawable/refresh_006" android:duration="200" />
11     <item android:drawable="@drawable/refresh_007" android:duration="200" />
12     <item android:drawable="@drawable/refresh_008" android:duration="200" />
13     <item android:drawable="@drawable/refresh_009" android:duration="200" />
14     <item android:drawable="@drawable/refresh_010" android:duration="200" />
15     <item android:drawable="@drawable/refresh_011" android:duration="200" />
16     <item android:drawable="@drawable/refresh_012" android:duration="200" />
17     <item android:drawable="@drawable/refresh_013" android:duration="200" />
18     <item android:drawable="@drawable/refresh_014" android:duration="200" />
19     <item android:drawable="@drawable/refresh_015" android:duration="200" />
20     <item android:drawable="@drawable/refresh_016" android:duration="200" />
21     <item android:drawable="@drawable/refresh_017" android:duration="200" />
22     <item android:drawable="@drawable/refresh_018" android:duration="200" />
23     <item android:drawable="@drawable/refresh_019" android:duration="200" />
24     <item android:drawable="@drawable/refresh_020" android:duration="200" />
25     <item android:drawable="@drawable/refresh_021" android:duration="200" />
26     <item android:drawable="@drawable/refresh_022" android:duration="200" />
27     <item android:drawable="@drawable/refresh_023" android:duration="200" />
28     <item android:drawable="@drawable/refresh_024" android:duration="200" />
29     <item android:drawable="@drawable/refresh_025" android:duration="200" />
30     <item android:drawable="@drawable/refresh_026" android:duration="200" />
31     <item android:drawable="@drawable/refresh_027" android:duration="200" />
32     <item android:drawable="@drawable/refresh_028" android:duration="200" />
33     <item android:drawable="@drawable/refresh_029" android:duration="200" />
34     <item android:drawable="@drawable/refresh_030" android:duration="200" />
35     <item android:drawable="@drawable/refresh_031" android:duration="200" />
36     <item android:drawable="@drawable/refresh_032" android:duration="200" />
37     <item android:drawable="@drawable/refresh_033" android:duration="200" />
38     <item android:drawable="@drawable/refresh_034" android:duration="200" />
39     <item android:drawable="@drawable/refresh_035" android:duration="200" />
40     <item android:drawable="@drawable/refresh_036" android:duration="200" />
41     <item android:drawable="@drawable/refresh_037" android:duration="200" />
42     <item android:drawable="@drawable/refresh_038" android:duration="200" />
43     <item android:drawable="@drawable/refresh_039" android:duration="200" />
44     <item android:drawable="@drawable/refresh_040" android:duration="200" />
45     <item android:drawable="@drawable/refresh_041" android:duration="200" />
46     <item android:drawable="@drawable/refresh_042" android:duration="200" />
47     <item android:drawable="@drawable/refresh_043" android:duration="200" />
48     <item android:drawable="@drawable/refresh_044" android:duration="200" />
49     <item android:drawable="@drawable/refresh_045" android:duration="200" />
50     <item android:drawable="@drawable/refresh_046" android:duration="200" />
51     <item android:drawable="@drawable/refresh_047" android:duration="200" />
52     <item android:drawable="@drawable/refresh_048" android:duration="200" />
53     
54     
55 </animation-list>
    View Code

    2、布局文件

     1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context=".MainActivity" >
10 
11     <ImageView 
12         android:layout_width="wrap_content"
13         android:layout_height="wrap_content"
14         android:id="@+id/imageView"
15         android:background="@drawable/refresh_001"
16         
17         />
18 
19 </RelativeLayout>
    activity_main.xml

    3、使用AnimationDrawable 类

    （1）找到要显示动画的ImageView控件

    imageView = (ImageView) findViewById(R.id.imageView);

    （2）给图片控件设置资源

    imageView.setBackgroundResource(R.drawable.waiting_anim); //将帧动画资源文件作为View控件背景

    （3）获取AnimationDrawable 类对象

    AnimationDrawable rocketAnimation = (AnimationDrawable) imageView.getBackground(); //获取背景并强转成为帧动画对象

    （4）启动动画

    rocketAnimation.start();

    效果图：

    -------------------------------------------------------------------------------------------------------------------

    动画汇总：

     1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:interpolator="@android:anim/decelerate_interpolator" >
 4   
 5   <scale
 6         android:duration="1000"
 7         android:fromXScale="0.1"
 8         android:fromYScale="0.1"
 9         android:pivotX="50%"
10         android:pivotY="50%"
11         android:toXScale="1.0"
12         android:toYScale="1.0" />
13   <alpha
14         android:duration="1000"
15         android:fromAlpha="0"
16         android:toAlpha="1.0" />
17 </set>
    zoom_in.xml 从右往左
     1 <?xml version="1.0" encoding="utf-8"?>
 2 <set xmlns:android="http://schemas.android.com/apk/res/android">
 3     
 4     <translate android:fromXDelta="-100%p" 
 5         android:toXDelta="0" 
 6         android:duration="300"/>
 7     <alpha android:fromAlpha="0.0" 
 8         android:toAlpha="1.0"
 9          android:duration="300" />
10 </set>
    push_left_in.xml从左往右
    1 <?xml version="1.0" encoding="utf-8"?>
2 <set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator">
3     <translate android:fromYDelta="-100%" android:toXDelta="0" android:duration="300" />
4     <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
5 </set>
    slide_top_to_bottom.xml 从上往下
    1 <?xml version="1.0" encoding="utf-8"?>
2 <set xmlns:android="http://schemas.android.com/apk/res/android" 
3     android:interpolator="@android:anim/decelerate_interpolator">
4     
5     <translate android:fromYDelta="100%" android:toXDelta="0" android:duration="300" />
6     <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
7 </set>
    slide_bottom_to_top.xml从下往上
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  • 原文地址：https://www.cnblogs.com/xqxacm/p/4557528.html
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