Android Studio3.0后起的四种属性动画
1.首先请看大屏幕
2.先布置Layout
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#fff"> <ImageView android:id="@+id/img" android:layout_width="100dp" android:layout_height="100dp" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_centerVertical="true" android:src="@drawable/timg" /> <ImageView android:id="@+id/img1" android:layout_width="100dp" android:layout_height="100dp" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_alignTop="@+id/img" android:layout_marginEnd="30dp" android:layout_marginRight="30dp" android:src="@drawable/timg1" /> </RelativeLayout>3.MainActiviity里的方法
package com.example.cartoon; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.animation.ValueAnimator; import android.graphics.Color; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.ImageView; public class MainActivity extends AppCompatActivity { private ImageView img; private ImageView img1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); img = findViewById(R.id.img); img1 = findViewById(R.id.img1); //参数1:表示对其进行动画操作的View //平移 ObjectAnimator translationAnim = ObjectAnimator.ofFloat(img, "translationX", 2f, 800f,0f); translationAnim.setDuration(5000); translationAnim.start(); //旋转 ObjectAnimator rotationAnim = ObjectAnimator.ofFloat(img, "rotationY", 9f, 180f); rotationAnim.setDuration(5500); rotationAnim.start(); //渐变 ObjectAnimator alphaAnim = ObjectAnimator.ofFloat(img, "alpha", 0f, 3f); alphaAnim.setDuration(10000); //alphaAnim.setRepeatCount(1);//设置重复播放的次数 //alphaAnim.setRepeatMode(ObjectAnimator.); 设置播放的模式 alphaAnim.start(); //渐变 ObjectAnimator alphaAnim1 = ObjectAnimator.ofFloat(img1, "alpha", 0f, 3f); alphaAnim1.setDuration(30000); //alphaAnim.setRepeatCount(1);//设置重复播放的次数 //alphaAnim.setRepeatMode(ObjectAnimator.); 设置播放的模式 alphaAnim1.start(); //缩放 ObjectAnimator scaleAnim = ObjectAnimator.ofFloat(img, "scaleX", 1f, 2f, 1f); scaleAnim.setDuration(6000); scaleAnim.start(); //缩放 ObjectAnimator scaleAnim1 = ObjectAnimator.ofFloat(img, "scaleY", 1f, 2f, 1f); scaleAnim1.setDuration(6000); scaleAnim1.start(); //旋转 ObjectAnimator rotationAnim1 = ObjectAnimator.ofFloat(img1, "rotationY", 9f, 180f); rotationAnim1.setDuration(0); rotationAnim1.start(); ObjectAnimator rotationAnimX = ObjectAnimator.ofFloat(ivIcon, "rotation", 0f, 360f); ObjectAnimator translationAnimX = ObjectAnimator.ofFloat(ivIcon, "translationX", 0f, 300f,0f); //ObjectAnimator translationAnimX = ObjectAnimator.ofFloat(ivIcon, "translationX", 0f, 300f,0f); //创建组合动画对象 AnimatorSet animatorSet = new AnimatorSet(); animatorSet.play(rotationAnimX).with(translationAnimX); animatorSet.setDuration(3000); animatorSet.start(); } }4.欲练此功必先自宫。
5.若不自宫也可成功