如上图的广告控件需求
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每次显示一张图片
-
每次只能滑动一张
-
可以自动播放
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自定义广告控件继承自Gallery
/**
* 图片gallery 每次只能滑动一个
* @author cmm
* @date 2012-02-02
* @version 1.0
*/
public class ImageGallery extends Gallery {
public ImageGallery(Context context, AttributeSet paramAttributeSet) {
super(context, paramAttributeSet);
}
@Override
public boolean onFling(MotionEvent paramMotionEvent1,
MotionEvent paramMotionEvent2, float paramFloat1, float paramFloat2) {
return false;
}
@Override
public boolean onScroll(MotionEvent paramMotionEvent1,MotionEvent paramMotionEvent2, float paramFloat1, float paramFloat2) {
float f = 1.4F * paramFloat1;
return super.onScroll(paramMotionEvent1, paramMotionEvent2, f,paramFloat2);
}http://www.eoeandroid.com/thread-102526-1-1.html
@Override
protected boolean getChildStaticTransformation(View child, Transformation t) {
return true;
}
}
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Adapter item 布局 宽度FillParent
<?xml version="1.0" encoding="UTF-8"?>
<!-- 广告项item -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/qianghaoqi_ad_item_image"
android:layout_width="fill_parent"
android:layout_height="300.0dip"
android:paddingBottom="20.0dip"
android:paddingLeft="20.0dip"
android:paddingRight="20.0dip"
android:paddingTop="28.0dip"
android:scaleType="fitXY" />
</RelativeLayout>
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自动播放
/**
* 自动滚动播放 滚动播放主要是采用Timer和Handler联合实现。 Timer中负责定时更新消息的生成以及传送，
* 由Handler接收到处理消息后重新设置当前显示的图片。
*/
final Handler mAutoGalleryHandler = new Handler() {
public void handleMessage(Message message) {
super.handleMessage(message);
switch (message.what) {
case HandlerTypeUtils.HANDLER_TYPE_LOAD_DATA_MAIN_GALLERY_POS:
mImageGallery.setSelection(message.getData().getInt(
ConstantUtil.GALLERY_POS));
break;
}
}
};
Timer mAutoTimer;
/**
* Timer 负责定时更新消息的生成以及传送， aDelay秒后，每隔aPeriod秒执行信息发送
*
* @param aDelay
* @param aPeriod
*/
protected void setTimer(long aDelay, long aPeriod,final int aPos) {
if (mAutoTimer!=null) {
mAutoTimer.cancel();
}
mAutoTimer = new Timer();
mAutoTimer.schedule(new TimerTask() {
int gallerypisition = aPos;
@Override
public void run() {
if (gallerypisition < mCount - 1) {
gallerypisition = gallerypisition + 1;
} else {
gallerypisition = 0;
}
Message msg = new Message();
Bundle date = new Bundle();// 存放数据
date.putInt(ConstantUtil.GALLERY_POS, gallerypisition);
msg.setData(date);
msg.what = HandlerTypeUtils.HANDLER_TYPE_LOAD_DATA_MAIN_GALLERY_POS;// 消息标识
mAutoGalleryHandler.sendMessage(msg);
}
}, aDelay, aPeriod);// 5秒后，每隔5秒执行信息发送
}
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布局文件 Gallery药包含在FrameLayout中，防止抖动
<!-- 首页广告 -->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:myspace="http://schemas.android.com/apk/res/com.blade.qianghaoqi"
android:id="@+id/qianghaoqi_ad_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<com.blade.qianghaoqi.ui.uiCommon.baseView.ImageGallery
android:id="@+id/qianghaoqi_ad_gallery"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:animationDuration="100"
android:fadingEdge="none"
android:spacing="0.0dip" />
<!--添加标志点-->
<LinearLayout
android:id="@+id/qianghaoqi_ad_position"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center"
android:orientation="horizontal"
android:paddingBottom="5.0dip" >
</LinearLayout>
</FrameLayout>
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加载标志点
/**
* 加载标志点
*/
protected void loadPositionImage() {
ImageView aImageView = null;
mLinearLayout.removeAllViews();
for (int i = 0; i < mCount; i++) {
aImageView = new ImageView(this);
if (i == 0) {
aImageView
.setImageResource(R.drawable.game_blade_qianghaoqi_alert_dialog_help_selected);
} else {
aImageView
.setImageResource(R.drawable.game_blade_qianghaoqi_alert_dialog_help_unselected);
}
mLinearLayout.addView(aImageView);
}
}
/**
* 更改标志点状态
*
* @param aPos
*/
public void changePositionImage(int aPos) {
ImageView aImageView = (ImageView) mLinearLayout.getChildAt(aPos);
if (aImageView != null) {
aImageView
.setImageResource(R.drawable.game_blade_qianghaoqi_alert_dialog_help_selected);
}
for (int i = 0; i < mCount; i++) {
if (i != aPos) {
aImageView = (ImageView) mLinearLayout.getChildAt(i);
aImageView
.setImageResource(R.drawable.game_blade_qianghaoqi_alert_dialog_help_unselected);
}
}
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position,
long id) {
changePositionImage(position);
setActionAdData(position);
}
转自：http://mmandroid.diandian.com/post/2012-02-27/16773046
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