小弟出现一个问题，望各位大神赐教？？

[lizhenning87]

public class SearchAdapter extends SimpleAdapter {

private SdCardUtils sdcard = null;
private AsyncImageLoader imageLoader = new AsyncImageLoader();
private Map<Integer, View> viewMap = new HashMap<Integer, View>();
private ViewBinder mViewBinder;
private List<? extends Map<String, ?>> mData; // List列表存放的数据
private int mResource; // 绑定的页面 ,例如：R.layout.search_item,
private LayoutInflater mInflater;
private String[] mFrom; // 绑定控件对应的数组里面的值名称
private int[] mTo; // 绑定控件的ID
Handler myhandler=null;
private Thread thread=null;
// 构造器
public SearchAdapter(Context context, List<? extends Map<String, ?>> data,
int resource, String[] from, int[] to) {
super(context, data, resource, from, to);
mData = data;
mResource = resource;
mFrom = from;
mTo = to;
// 布局泵(LayoutInflater)根据XML布局文件来绘制视图(View)对象。这个类无法直接创建实例，要通过context对象的getLayoutInflater()或getSystemService(String)方法来获得实例，这样获得的布局泵实例符合设备的环境配置。
mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

/*
* SimpleAdapter基类显示每个Item都是通过这个方法生成的 在getView(int position, View
* convertView, ViewGroup
* parent)中又调用了SimpleAdapter的私有方法createViewFromResource
* 来组装View，在createViewFromResource中对SimpleAdapter的参数String[] from 和int[]
* to进行了组装
*/
public View getView(int position, View convertView, ViewGroup parent) {

// 调用下面方法

return createViewFromResource(position, convertView, parent, mResource);
}

// 在createViewFromResource方法中又有一个bindView(position,
// v)方法对item中的各个View进行了组装，bindView(position, v)
private View createViewFromResource(int position, View convertView,
ViewGroup parent, int resource) {
View rowView = this.viewMap.get(position);

if (rowView == null) {
rowView = mInflater.inflate(resource, null);

final int[] to = mTo;
final int count = to.length;
final View[] holder = new View[count];

for (int i = 0; i < count; i++) {

holder[i] = rowView.findViewById(to[i]);
}
rowView.setTag(holder);
bindView(position, rowView); // 调用下面方法对Item中的
viewMap.put(position, rowView);
}
return rowView;
}

// 对ViewImage进行组装的代码了“else if (v instanceof ImageView)”
@SuppressWarnings("unchecked")
private void bindView(int position, View view) {
final Map dataSet = mData.get(position);
if (dataSet == null) {
return;
}

final ViewBinder binder = mViewBinder;
final View[] holder = (View[]) view.getTag();
final String[] from = mFrom;
final int[] to = mTo;
final int count = to.length;

for (int i = 0; i < count; i++) {
final View v = holder[i];
if (v != null) {
final Object data = dataSet.get(from[i]);
String urlText = null;

if (data == null) {
urlText = "";
} else {
urlText = data.toString();
}

boolean bound = false;
if (binder != null) {
bound = binder.setViewValue(v, data, urlText);
}

if (!bound) {
if (v instanceof Checkable) {
if (data instanceof Boolean) {
((Checkable) v).setChecked((Boolean) data);
} else {
throw new IllegalStateException(v.getClass()
.getName()
+ " should be bound to a Boolean, not a "
+ data.getClass());
}
} else if (v instanceof TextView) {
setViewText((TextView) v, urlText);
} else if (v instanceof ImageView) {
if (data instanceof Integer) {
setViewImage((ImageView) v, (Integer) data);
} else {
setViewImage((ImageView) v, urlText);
}
} else {
throw new IllegalStateException(
v.getClass().getName()
+ " is not a "
+ " view that can be bounds by this SimpleAdapter");
}
}
}
}
}

public void setViewImage(ImageView v, int value) {
v.setImageResource(value);
}



public void setViewImage(final ImageView v,final String url) {


thread = new Thread(){

public void run(){

SdCardUtils sdcard=new SdCardUtils();


try {


if(sdcard.getSdImage(url)!=null){
v.setImageBitmap(sdcard.getSdImage(url));

}
else{
sdcard.downloadFile(url);
v.setImageBitmap(sdcard.getSdImage(url));
}



} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}


}
};

thread.start();
}

}

我想做一个 图片缓存到本地SD卡上， 这是我的 SimpleAdapter 是在adapter 中处理添加下载图片。。。
但是问题是 报错 android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
请问 如何 解决呢？？？

[android_Y]

把修改UI的代码放到handle 中

[lizhenning87]

我现在也实现了， 但是如何 能够实现动态加载 图片，，我现在这个程序 都是静态的 就是说第一次没有缓存的情况下，，它不能 一边 实现一边加载 一边的 显示图片？？
有没有哪个大神 能够 详细的 给个 动态 列表图片 下载的思路！！

[yhx810971230]

//imageView 是你想要实现异步加载的空间 useAble 是在网络加载的图片，在handle里面设置进去
//变量
private Handler handler = new Handler();
private ExecutorService threadPoll = Executors.newFixedThreadPool(5);

// 加载主页图片
private void loadImg(final String url, final ImageView imageView,
final String dirStr) {
threadPoll.submit(new Runnable() {
@Override
public void run() {
try {
final Drawable useAble;
boolean boo = Utils.testSDPic(url, dirStr);
// 如果在缓存中没有在SD卡中有的
if (boo) {
useAble = Utils.getDrawableSD(url, dirStr,
CompanyListActivity.this);
}
// 如果在缓存中没有在SD卡中也没有的
else {
// 网络加载图片加上HOST
useAble = Utils.getDrawableFromUrl(Constant.HOSTPIC
+ url, CompanyListActivity.this);// 将下载的图片保存到SD卡里面
if (null != useAble) {
Utils.savePicSD(url, useAble, dirStr);
}
}
// Thread.currentThread().sleep(200);
handler.post(new Runnable() {
@Override
public void run() {
if (null != useAble) {
imageView.setBackgroundDrawable(useAble);
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

[横龙村夫]

你去网上找一个AsynLoadImage的类，网上很多，已经解决了楼主的问题

[lizhenning87]

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