假设我有多个图片在drawable文件夹中（例如8张图片）。 我想使用从左到右翻转的效果将所有这些图像一个接一个地显示在imageView中，并反复显示（ex-img[0]，img[1]，......img[8]，img[0]，img[1]，..........）。 我该怎么做呢？
private void AnimateandSlideShow() {
image1 = (ImageView)findViewById(R.id.imageView1);
image1.setImageResource(img[currentimageindex1%img.length]);
currentimageindex1++;
Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);
image1.startAnimation(rotateimage);
}
使用自定义函数通过处理程序来旋转图像以更改图像，这里我更改了图像的反向方向：
private ImageView image1;
private int[] imageArray;
private int currentIndex;
private int startIndex;
private int endIndex;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
image1 = (ImageView)findViewById(R.id.imageView1);
imageArray = new int[8];
imageArray[0] = R.drawable.one;
imageArray[1] = R.drawable.two;
imageArray[2] = R.drawable.three;
imageArray[3] = R.drawable.four;
imageArray[4] = R.drawable.five;
imageArray[5] = R.drawable.six;
imageArray[6] = R.drawable.seven;
imageArray[7] = R.drawable.eight;
startIndex = 0;
endIndex = 7;
nextImage();
}
public void nextImage(){
image1.setImageResource(imageArray[currentIndex]);
Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);
image1.startAnimation(rotateimage);
currentIndex++;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
if(currentIndex>endIndex){
currentIndex--;
previousImage();
}else{
nextImage();
}
}
},1000); // here 1000(1 second) interval to change from current to next image
}
public void previousImage(){
image1.setImageResource(imageArray[currentIndex]);
Animation rotateimage = AnimationUtils.loadAnimation(this, R.anim.custom_anim);
image1.startAnimation(rotateimage);
currentIndex--;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
if(currentIndex<startIndex){
currentIndex++;
nextImage();
}else{
previousImage(); // here 1000(1 second) interval to change from current to previous image
}
}
},1000);
}
使用ViewFlipper，并将ImageView添加到ViewFlipper中。
布局文件：
<ViewFlipper
android:layout_width="match_parent"
android:layout_height="330dp"
android:layout_below="@id/textViewid"
android:layout_marginTop="20dp"
android:id="@+id/flipperid"
android:layout_centerInParent="true"
android:flipInterval="4000"
android:elevation="5dp">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/pic1"
android:scaleType="fitCenter"
android:layout_gravity="center_horizontal"/>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@drawable/pic2"
android:scaleType="fitCenter"
android:layout_gravity="center_horizontal"/>
</ViewFlipper>
ViewFlipper viewFlipper = (ViewFlipper)findViewById(R.id.flipperid);
现在，您可以通过调用 viewFlipper.startFlipping(); 来自动翻转图像。
希望这能帮助到您。
只需使用
public class CustomGallery extends Gallery {
private Handler handler;
public CustomGallery(Context context) {
super(context);
handler = new Handler();
postDelayedScrollNext();
}
public CustomGallery(Context context, AttributeSet attrs) {
super(context, attrs);
handler = new Handler();
postDelayedScrollNext();
}
public CustomGallery(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
handler = new Handler();
postDelayedScrollNext();
}
protected void postDelayedScrollNext() {
handler.postDelayed(new Runnable() {
public void run() {
postDelayedScrollNext();
Log.d("CustomGallery", "dpad RIGHT");
onKeyDown(KeyEvent.KEYCODE_DPAD_RIGHT, null);
}
}, 1000);
}
protected boolean isScrollingLeft(MotionEvent e1, MotionEvent e2) {
return e2.getX() > e1.getX();
}
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
int kEvent;
if (isScrollingLeft(e1, e2)) {
Log.d("CustomGallery", "fling LEFT");
kEvent = KeyEvent.KEYCODE_DPAD_LEFT;
} else {
Log.d("CustomGallery", "fling LEFT");
kEvent = KeyEvent.KEYCODE_DPAD_RIGHT;
}
onKeyDown(kEvent, null);
return true;
}
}
<ViewFlipper
android:id="@+id/imageCarouselContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/progressSlideshow"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginBottom="0dp"
android:animateFirstView="true"
android:background="@color/black"
android:flipInterval="2000"
android:inAnimation="@anim/fade_in"
android:orientation="vertical"
android:outAnimation="@anim/fade_out" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp"
/>
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp"
/>
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp"
/>
</ViewFlipper>
yourViewFlipper.startFlipping();