快捷導(dǎo)航

Android使用動(dòng)畫(huà)設(shè)置ProgressBar進(jìn)度的方法

更新時(shí)間：2018年01月24日 16:25:10 作者：還有星星

這篇文章主要為大家詳細(xì)介紹了Android使用動(dòng)畫(huà)設(shè)置ProgressBar進(jìn)度的方法，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

需求場(chǎng)景：當(dāng)我們?cè)谑褂肞rogressBar的時(shí)候，希望有進(jìn)度加載的效果，此時(shí)我們傳統(tǒng)的做法是使用Thread線程來(lái)實(shí)現(xiàn)，下面我們用屬性動(dòng)畫(huà)來(lái)實(shí)現(xiàn)，簡(jiǎn)單粗暴。。哈哈哈

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 tools:context="com.yhx.app.progressbardemo.MainActivity">

 <ProgressBar
  android:layout_marginTop="20dp"
  android:id="@+id/bar"
  android:layout_width="match_parent"
  android:layout_height="8dp"
  style="?android:attr/progressBarStyleHorizontal"
  android:progress="10"
  android:max="100">
 </ProgressBar>

 <Button
  android:hint="開(kāi)始"
  android:onClick="show"
  android:layout_marginTop="50dp"
  android:layout_width="match_parent"
  android:layout_height="50dp"/>

 <TextView
  android:id="@+id/tv_bar"
  android:layout_marginTop="20dp"
  android:layout_width="100dp"
  android:text="0"
  android:gravity="center"
  android:textSize="38dp"
  android:layout_gravity="center"
  android:layout_height="100dp"/>

 <Button
  android:hint="開(kāi)始"
  android:onClick="tvshow"
  android:layout_marginTop="50dp"
  android:layout_width="match_parent"
  android:layout_height="50dp"/>

</LinearLayout>

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);
 }
}

效果圖：