android - 在 Android 中连续旋转 ImageView

Question

我正在使用以下代码来旋转 ImageView

<set xmlns:android="http://schemas.android.com/apk/res/android" 
    android:shareInterpolator="false">
<rotate 
    android:fromDegrees="0"
    android:toDegrees="360"
    android:duration="500"
    android:repeatCount="infinite"
    android:pivotX="50%"
    android:pivotY="50%"
    >
</rotate>
</set> 

Animation rotate1 = AnimationUtils.loadAnimation(this, R.anim.rotate_picture); rotate.startAnimation(rotate1);

我使用的布局是:

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" 
>
<ImageView 
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/loader"
android:layout_centerInParent="true"
android:id="@+id/rotate"
/>
</RelativeLayout>

但它是停止 500 毫秒并重新启动。但我需要连续旋转图像。中途不 parking 。我该怎么做？

Answer 1

    //custom_anim.xml
<?xml version="1.0" encoding="utf-8" ?>
<set
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    <rotate
        android:fromDegrees="0"
        android:toDegrees="360"
        android:pivotX="50%"
        android:pivotY="50%"
        android:duration="2000" />
    <alpha
        android:fromAlpha="0.0"
        android:toAlpha="1.0"
        android:duration="2000">
    </alpha>
    <scale
        android:pivotX="50%"
        android:pivotY="50%"
        android:fromXScale=".1"
        android:fromYScale=".1"
        android:toXScale="1.0"
        android:toYScale="1.0"
        android:duration="2000" />

</set>


//Oncreate 

 Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);

            imgageview.startAnimation(rotateimage);
            rotateimage.setAnimationListener(new AnimationListener() {

                public void onAnimationStart(Animation animation) {
                    // TODO Auto-generated method stub

                }

                public void onAnimationRepeat(Animation animation) {
                    // TODO Auto-generated method stub

                }

                public void onAnimationEnd(Animation animation) {
                    // TODO Auto-generated method stub

                    AnimateandSlideShow();
                }
            });


//function
private void AnimateandSlideShow() {
Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);

            imgageview.startAnimation(rotateimage);
            rotateimage.setAnimationListener(new AnimationListener() {

                public void onAnimationStart(Animation animation) {
                    // TODO Auto-generated method stub

                }

                public void onAnimationRepeat(Animation animation) {
                    // TODO Auto-generated method stub

                }

                public void onAnimationEnd(Animation animation) {
                    // TODO Auto-generated method stub

                    AnimateandSlideShow();
                }
            });
}