Difference between view animation and attribute animation

• Different introduction time: View Animation was introduced at API Level 1. Property Animation was introduced by API Level 11, that is, Android 3.0 started to have Property Animation related APIs.
• Different package name: View Animation in package android.view.animation Medium. And the Property Animation API is in the package android.animation Medium.
• The naming of animation classes is different: in View Animation, the names of animation classes are all XXXXAnimation, while in Property Animator, the names of animation classes are XXXXAnimator
• View animation only changes the state of the control and does not change the properties of the control. Two property animation directly changes the properties of the control

Examples of patching animation are Kangkang effect:

Attribute animation effect;

Attribute animation ValueAnimator.onInt use

Parametric construction
ValueAnimator.ofInt(int... values)

					//Set where to move
ValueAnimator valueAnimator = ValueAnimator.ofInt(0, 400,200,600);
valueAnimator.setDuration(2000);
//Monitor the change of ofInt through addUpdateListener 
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        int animatedValue = (int) animation.getAnimatedValue();
	Log.i("szjanimatedValue",animatedValue+"");
	//Set value to TextView object
       	tv.layout(animatedValue,animatedValue,tv.getWidth()+animatedValue,tv.getHeight()+animatedValue);
    }
});
valueAnimator.start();

Attribute animation ValueAnimator.onFloat use

Parametric structure:

ValueAnimator.ofFloat(float... values)

ValueAnimator valueAnimator = ValueAnimator.ofFloat(0f, 400f,200f,600f,405.2f,202.1f,600f);
valueAnimator.setDuration(2000);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        //Because we use of Float here, we have to convert it to Float
        Float animated = (Float) animation.getAnimatedValue();
        Log.i("szjanimatedValue",animated+"");
        int animatedValue = animated.intValue();//Convert to int type set to tv
        tv.layout(animatedValue,animatedValue,tv.getWidth()+animatedValue,tv.getHeight()+animatedValue);
    }
});
valueAnimator.start();

Come to Kangkang onFloat's effect:

Summary of onInt and onFloat:

Common methods:

 Animation duration in milliseconds 
ValueAnimator setDuration(long duration)

 Gets the value of the current motion point when ValueAnimator is in motion
 Object getAnimatedValue();
 
 Start animation
 void start()

Set the number of cycles to INFINITE
void setRepeatCount(int value)

*Set cycle mode 
*value values include RESTART and REVERSE
void setRepeatMode(int value)

 Cancel animation 
void cancel()

setRepeatCount() and setRepeatMode() use

Here I set:
valueAnimator.setRepeatCount(3) ; / / execute three times
valueAnimator.setRepeatMode ( ValueAnimator.REVERSE ); / / reverse

Listener method

valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        //Gets the value of the current motion point when ValueAnimator is in motion
        Object animated =animation.getAnimatedValue();
     });

animation.getAnimatedValue();//Gets the value of the current motion point when ValueAnimator is in motion

valueAnimator.addListener(new Animator.AnimatorListener() {
    @Override
    public void onAnimationStart(Animator animation) {
        //Start with
        Log.i("szjjListener:","start");
    }
    @Override
    public void onAnimationEnd(Animator animation) {
        //Execute after execution
        Log.i("szjjListener","End");
    }
    @Override
    public void onAnimationCancel(Animator animation) {
        Log.i("szjjListener","Cancel");
    }

    @Override
    public void onAnimationRepeat(Animator animation) {
        //Not once executed after start
        Log.i("szjjListener","Repeat");
    }
});

because valueAnimator.setRepeatCount(3) ; / / execute three times
So here onaimationrepeat() is executed three times

Cancel listening

/** * Remove AnimatorUpdateListener */
void removeUpdateListener(AnimatorUpdateListener listener);
void removeAllUpdateListeners(); 

/**  * Remove AnimatorListener  */
void removeListener(AnimatorListener listener);
void removeAllListeners();

valueAnimator.removeAllListeners();

effect:

Take a look at the Log:

Clone and delay operation

 How long does the delay start, in milliseconds
public void setStartDelay(long startDelay)

Clone a ValueAnimator instance completely, including all its settings and all processing of listener code 
public ValueAnimator clone()

use:

ValueAnimator clone = valueAnimator.clone();//clone
clone.setStartDelay(2000);//Execute after 2s
clone.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        //Because we use of Float here, we have to convert it to Float
        Float animated = (Float) animation.getAnimatedValue();
        Log.i("szjanimatedValue",animated+"");
        int animatedValue = animated.intValue();//Convert to int type set to tv
        tv.layout(animatedValue,animatedValue,tv.getWidth()+animatedValue,tv.getHeight()+animatedValue);
    }
});
clone.start();

Come to Kangkang effect:

First get the original control, and then click clone

Thank you for watching. If you have different opinions, please leave a message in the comment area~

Git address link: langyangyang.

Reference code: Start a ship.