需求场景:当我们在使用ProgressBar的时候,希望有进度加载的效果,此时我们传统的做法是使用Thread线程来实现,下面我们用属性动画来实现,简单粗暴。。哈哈哈
布局文件:
<&#63;xml version="1.0" encoding="utf-8"&#63;>
Activity:
public class MainActivity extends AppCompatActivity { private ProgressBar mProgressBar; TextView mtv_bar; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mProgressBar = (ProgressBar) findViewById(R.id.bar); mtv_bar = (TextView) findViewById(R.id.tv_bar); setAnimation(mProgressBar, 100); } private void setAnimation(final ProgressBar view, final int mProgressBar) { ValueAnimator animator = ValueAnimator.ofInt(0, mProgressBar).setDuration(5000); animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { @Override public void onAnimationUpdate(ValueAnimator valueAnimator) { view.setProgress((int) valueAnimator.getAnimatedValue()); } }); animator.start(); } private void setTvAnimation(final TextView view, final int mProgressBar) { ValueAnimator animator = ValueAnimator.ofInt(0, mProgressBar).setDuration(5000); animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { @Override public void onAnimationUpdate(ValueAnimator valueAnimator) { view.setText(String.valueOf(valueAnimator.getAnimatedValue())); } }); animator.start(); } public void show(View view) { setAnimation(mProgressBar, 100); } public void tvshow(View view){ setTvAnimation(mtv_bar,240); } }
效果图:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。