效果图
都在注释里了
补间动画
package com.yechaoa.viewanimationdemo; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; 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.Button; import android.widget.ImageView; public class MainActivity extends AppCompatActivity implements View.OnClickListener { private ImageView mImageView; private Button mBtnGone, mBtnVisible, mBtnMoveToLeft, mBtnMoveToRight, mBtnRotate, mBtnScale, mBtnAlpha, mBtnAnimGroup; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initListener(); } private void initView() { mImageView = findViewById(R.id.imageView); mBtnGone = findViewById(R.id.btn_gone); mBtnVisible = findViewById(R.id.btn_visible); mBtnMoveToLeft = findViewById(R.id.btn_move_to_left); mBtnMoveToRight = findViewById(R.id.btn_move_to_right); mBtnRotate = findViewById(R.id.btn_rotate); mBtnScale = findViewById(R.id.btn_Scale); mBtnAlpha = findViewById(R.id.btn_alpha); mBtnAnimGroup = findViewById(R.id.btn_anim_group); } private void initListener() { mBtnGone.setOnClickListener(this); mBtnVisible.setOnClickListener(this); mBtnMoveToLeft.setOnClickListener(this); mBtnMoveToRight.setOnClickListener(this); mBtnRotate.setOnClickListener(this); mBtnScale.setOnClickListener(this); mBtnAlpha.setOnClickListener(this); mBtnAnimGroup.setOnClickListener(this); } @Override public void onClick(View view) { switch (view.getId()) { case R.id.btn_gone: //位移动画 //4个数值分别表示坐标轴中以远点为中心的正负X轴Y轴 f表示float TranslateAnimation mHiddenAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, -1.0f); //设置时长 mHiddenAnimation.setDuration(500); mImageView.startAnimation(mHiddenAnimation); //0.0f 加一个渐变的效果 mImageView.animate().alpha(0); mImageView.setVisibility(View.GONE); break; case R.id.btn_visible: TranslateAnimation mShowAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, -1.0f, Animation.RELATIVE_TO_SELF, 0.0f); mShowAnimation.setDuration(500); mImageView.startAnimation(mShowAnimation); mImageView.animate().alpha(1); mImageView.setVisibility(View.VISIBLE); break; case R.id.btn_move_to_left: TranslateAnimation mLeftAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, -1.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f); mLeftAnimation.setDuration(500); mImageView.startAnimation(mLeftAnimation); mImageView.animate().alpha(0); mImageView.setVisibility(View.VISIBLE); break; case R.id.btn_move_to_right: TranslateAnimation mRightAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 1.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f); mRightAnimation.setDuration(500); mImageView.startAnimation(mRightAnimation); mImageView.animate().alpha(0); mImageView.setVisibility(View.VISIBLE); break; case R.id.btn_rotate: //旋转动画 RotateAnimation mRotateAnimation = new RotateAnimation(0, 60, 0.5f, 0.5f); mRotateAnimation.setDuration(2000); mImageView.startAnimation(mRotateAnimation); break; case R.id.btn_Scale: /** * 一共8个参数 * 前4个参数是分别是X轴、Y轴的起始位置和结束位置 * 后4个参数相对位置值，Animation.RELATIVE_TO_SELF表示自己，也就是以自己为中心点向四周缩放 */ //缩放动画 ScaleAnimation mScaleAnimation = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); mScaleAnimation.setDuration(2000); //设置重复次数 mScaleAnimation.setRepeatCount(2); //动画执行完后是否停留在执行完的状态 mScaleAnimation.setFillAfter(true); //执行前的等待时间 mScaleAnimation.setStartOffset(500); //取消动画 //mScaleAnimation.cancel(); mScaleAnimation.setAnimationListener(new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { Log.d("onAnimationStart", "动画开始"); } @Override public void onAnimationEnd(Animation animation) { Log.d("onAnimationEnd", "动画结束"); } @Override public void onAnimationRepeat(Animation animation) { Log.d("onAnimationRepeat", "动画重复"); } }); mImageView.startAnimation(mScaleAnimation); break; case R.id.btn_alpha: //渐变动画 AlphaAnimation mAlphaAnimation = new AlphaAnimation(1.0f, 0.0f); mAlphaAnimation.setDuration(2000); mAlphaAnimation.setAnimationListener(new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { //淡出之后再淡入 //xml的方式引用，参数与代码设置一样 Animation aa = AnimationUtils.loadAnimation(MainActivity.this, R.anim.fade_in); mImageView.startAnimation(aa); } @Override public void onAnimationRepeat(Animation animation) { } }); mImageView.startAnimation(mAlphaAnimation); break; case R.id.btn_anim_group: /** * 两种方式可以实现组合动画 * 1.给第一个动画设置监听，结束之后执行第二个动画 * 2.用AnimationSet，动画集合类 */ RotateAnimation ra = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); ra.setDuration(2000); AlphaAnimation aa = new AlphaAnimation(0.0f, 1.0f); aa.setDuration(2000); ScaleAnimation sa = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); sa.setDuration(2000); AnimationSet animationSet = new AnimationSet(true); animationSet.addAnimation(ra); animationSet.addAnimation(aa); animationSet.addAnimation(sa); //animationSet.setInterpolator(new DecelerateInterpolator(5)); mImageView.startAnimation(animationSet); animationSet.start(); /** * Interpolator定义动画的速率 * AccelerateDecelerateInterpolator延迟减速，在动作执行到中间的时候才执行该特效。 * AccelerateInterpolator会使慢慢以(float)的参数降低速度 * CycleInterpolator曲线运动特效，要传递float型的参数。 * DecelerateInterpolator开头和结尾慢，中间快 * LinearInterpolator匀速 */ break; } } }
fade_in.xml
<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha android:duration="2000" android:fromAlpha="0.0" android:toAlpha="1.0" /> </set>
帧动画
<?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="true"> <item android:drawable="@mipmap/ic_launcher" android:duration="200" /> <item android:drawable="@mipmap/ic_launcher" android:duration="200" /> <item android:drawable="@mipmap/ic_launcher" android:duration="200" /> <item android:drawable="@mipmap/ic_launcher" android:duration="200" /> <item android:drawable="@mipmap/ic_launcher" android:duration="200" /> <item android:drawable="@mipmap/ic_launcher" android:duration="200" /> </animation-list>
drawable是图片地址，oneshot=true表示只展示一遍，false表示循环
这个文件必须放在drawable文件下
