package com.example.animatordemo;
import android.animation.ObjectAnimator;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private ImageView image_view;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.btn_translate).setOnClickListener(this);
image_view = findViewById(R.id.image_view);
findViewById(R.id.btn_alpha).setOnClickListener(this);
findViewById(R.id.btn_argb).setOnClickListener(this);
findViewById(R.id.btn_rotation).setOnClickListener(this);
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn_translate:
translation();
break;
case R.id.btn_argb:
argb();
break;
case R.id.btn_rotation:
rotation();
break;
case R.id.btn_alpha:
alpha();
break;
}
}
private void rotation() {
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(image_view,"rotationY",0,360);
objectAnimator.setDuration(3000);
objectAnimator.setRepeatCount(-1);
objectAnimator.start();
}
private void alpha() {
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(image_view,"alpha",1,0.8f,0.5f,0,0.5f,1);
objectAnimator.setDuration(3000);
objectAnimator.setRepeatCount(-1);
objectAnimator.start();
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void argb() {
ObjectAnimator objectAnimator = ObjectAnimator.ofArgb(image_view,"backgroundColor",0xffff00ff, 0xffffff00, 0xffff00ff);
objectAnimator.setDuration(3000);
objectAnimator.setRepeatCount(-1);
objectAnimator.start();
}
private void translation() {
ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(image_view,"translationX",0,800,0);
objectAnimator.setDuration(5000);
objectAnimator.setRepeatCount(-1);
objectAnimator.start();
}
}
