Android学习笔记--动画特效

直接上代码，有事先不多写，以后在补

MainActivity

package com.wuxianedu.animation;

import android.support.annotation.AnimRes;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.AnimationUtils;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.Switch;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private ImageView imgView;
    private boolean isCheched = true;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        Switch switch1 = (Switch) findViewById(R.id.switch1);
        switch1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                MainActivity.this.isCheched = isChecked;
            }
        });


        findViewById(R.id.button).setOnClickListener(this);
        findViewById(R.id.button2).setOnClickListener(this);
        findViewById(R.id.button3).setOnClickListener(this);
        findViewById(R.id.button4).setOnClickListener(this);
        findViewById(R.id.button5).setOnClickListener(this);
        imgView = (ImageView) findViewById(R.id.imageView);
    }


    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.button://渐变透明动画
                if(isCheched){
                    alphaJava();
                }else{
                    loadByXml(R.anim.alpha_animation);
                }
                break;
            case R.id.button2://缩放动画
//                ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1);
//                scaleJava();
                loadByXml(R.anim.scal_animation);
                break;
            case R.id.button3://位移动画
//                translateJava();
                loadByXml(R.anim.translate_animation);
                break;
            case R.id.button4://旋转动画
//                rotateJava();
                loadByXml(R.anim.rotate_animation);
                break;
            case R.id.button5://动画集
                AnimationSet animationSet = new AnimationSet(true);

                //创建三个动画
                RotateAnimation rotateAnimation = new RotateAnimation(0,360,Animation.RELATIVE_TO_SELF,0.5f,
                        Animation.RELATIVE_TO_SELF,0.5f);
                ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1,Animation.RELATIVE_TO_SELF,0.5f,
                        Animation.RELATIVE_TO_SELF,0.5f);
                TranslateAnimation translateAnimation = new TranslateAnimation(0,800,0,800);

                //将动画添加到动画集中
                animationSet.addAnimation(rotateAnimation);
                animationSet.addAnimation(scaleAnimation);
                animationSet.addAnimation(translateAnimation);

                //设置时长
                animationSet.setDuration(3000);

                //启动动画
                imgView.startAnimation(animationSet);
                break;
        }
    }

    /**
     * 位移动画
     */
    private void translateJava() {
        TranslateAnimation translateAnimation = new TranslateAnimation(0,800,0,800);
        translateAnimation.setDuration(3000);
        imgView.startAnimation(translateAnimation);
    }

    /**
     * 旋转动画
     */
    private void rotateJava() {
        RotateAnimation rotateAnimation = new RotateAnimation(0,360,Animation.RELATIVE_TO_SELF,0.5f,
                Animation.RELATIVE_TO_SELF,0.5f);
        rotateAnimation.setDuration(3000);
        imgView.startAnimation(rotateAnimation);
    }

    /**
     * 缩放动画
     */
    private void scaleJava() {
        ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1,Animation.RELATIVE_TO_SELF,0.5f,
                Animation.RELATIVE_TO_SELF,0.5f);
        scaleAnimation.setDuration(3000);
        imgView.startAnimation(scaleAnimation);
    }

    /**
     * 通过XMl加载动画
     * @param resId 动画资源，布局文件
     */
    private void loadByXml(@AnimRes int resId) {
        Animation animation = AnimationUtils.loadAnimation(this,resId);
        imgView.startAnimation(animation);
    }

    /**
     * 渐变透明动画
     */
    private void alphaJava(){
        AlphaAnimation alphaAnimation = new AlphaAnimation(1,0);
        alphaAnimation.setDuration(3000);
        imgView.startAnimation(alphaAnimation);
    }
}