android动画编

四月份来了，我也要加紧学习了，下面的动画类型

看看实现的代码

package com.smart;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.TranslateAnimation;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

public class Main extends Activity implements AdapterView.OnItemSelectedListener
{
	private static final String[] INTERPOLATORS={
		"加快", "减速", "加快/减速", "预料",
		"过冲", "预计/过冲", "弹跳" 
	};//类型
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Spinner s=(Spinner)findViewById(R.id.spinner);
        ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,INTERPOLATORS);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        s.setAdapter(adapter);//得到控件
        s.setOnItemSelectedListener(this);
        
        
    }

    
	@Override
	public void onItemSelected(AdapterView<?> parent, View v, int position,
			long id) {
		final View target=(View)findViewById(R.id.target);
		final View targetParent=(View)target.getParent();//得到动画
		Animation animation= new TranslateAnimation(0.0f, targetParent
				.getWidth()
				- target.getWidth()
				- targetParent.getPaddingLeft()
				- targetParent.getPaddingRight(), 0.0f, 0.0f);
		animation.setDuration(1000);
		animation.setStartOffset(300);
		animation.setRepeatMode(Animation.RESTART);
		animation.setRepeatCount(Animation.INFINITE);
		//选择动来类型
		switch (position) {
		case 0:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.accelerate_interpolator));
			
			break;
		case 1:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.decelerate_interpolator));
			
			break;
		case 2:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.accelerate_decelerate_interpolator));
			
			break;
		case 3:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.anticipate_interpolator));
			
			break;
		case 4:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.overshoot_interpolator));
			
			break;
		case 5:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.anticipate_overshoot_interpolator));
			
			break;
		case 6:
			animation.setInterpolator(AnimationUtils.loadInterpolator(this, android.R.anim.bounce_interpolator));
			
			break;
			
		}
		target.startAnimation(animation);
		
		
	}

	
	
	@Override
	public void onNothingSelected(AdapterView<?> arg0) {
		
		
		
	}
}

XML代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:padding="10dip"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:clipToPadding="false"
    >
<TextView  
android:id="@+id/target"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textSize="16sp"
    android:text="朋友，看看我，跑得多快！"
    />
    
    <TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textSize="15dip"
    android:layout_marginBottom="5dip"
    android:text="请选择动画类型"
    />
    
    <Spinner  
	android:id="@+id/spinner"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    />
</LinearLayout>

转载于:https://www.cnblogs.com/llb988/archive/2011/04/04/2005416.html