小编And*_*xko的帖子

我需要ipa直接从URL 下载并安装.

我试过这个:

NSURL *url = [NSURL URLWithString:@"https://myWeb.com/test.ipa"];
[[UIApplication sharedApplication] openURL:url];

该应用程序启动Safari但出现此消息:

可能吗？

我的应用程序使用MultiColumnListView(https://github.com/huewu/PinterestLikeAdapterView),正如其名称所示,它有助于创建多列列表视图.

该库很棒,但正如它们指定的那样,不支持过滤.

因此,我尝试使用简单的编辑文本创建自己的文本过滤器功能.

最后我实现了过滤列表,但现在我需要刷新listView并调用setAdapter,因为我传递了列表.

MyAdapter adapter = new MyAdapter(this,myList);
listView.setAdapter(adapter);

当我执行listView.invalidateViews()或adapter.notifyDataSetChanged()listView刷新但使用旧列表.

哪个是调用setAdapter的最佳方法？或许是另一种方式这样做..

提前致谢

编辑:

//Method that filters the list
Log.i("On filter myList.size()",""+myList.size());      
adapter.notifyDataSetChanged();

//on the Adapter
Log.i("On Adapter myList.size()",""+myList.size());

日志:

适配器类:

public class MiAdaptadorListaComercios extends BaseAdapter{

//Textview and Imageviews declarations

private Context contexto;

private List<Comercio> myList;

public MiAdaptadorListaComercios(Context c,List<Comercio> myList){
    this.contexto = c;
    this.myList = new ArrayList<Comercio>();
    this.myList = myList;
}
@Override
public int getCount() {
    Log.i("On Adapter myList.size()",""+listaComercios.size());
    return myList.size();
} …

我用a UICollectionview来显示很多自定义单元格(250或更少).

那些单元格有一个主图像和一些文本.由于图像必须从Internet下载,我使用外部库AsyncImageView来执行延迟加载.

但问题是细胞的可重复使用性能让我发疯.

当我滚动图像出现在错误的单元格中时.除了索引路径之外,如何向图像添加标记或其他内容以避免出现问题？

也许AsyncImageView有一个我忽略的问题的解决方案......

或者另一种选择是更好的选择？

任何线索？

提前致谢

编辑:我的代码的简化版本

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{

static NSString *identifier = @"Cell";

CollectionComercioCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];


if (cell == nil){
}
else{
    [[AsyncImageLoader sharedLoader] cancelLoadingImagesForTarget: cell.myImage];
}

cell.myImage.imageURL = nil;
cell.myImage.image = nil;

cell.myImage.hidden = TRUE;

cell.myImage.imageURL = [[myArray objectAtIndex:indexPath.row] getLogoUrl];

cell.myText.text = [[myArray objectAtIndex:indexPath.row] getName];

cell.myImage.hidden = FALSE;

return cell;

}

CustomCell.m

- (void)prepareForReuse
{
    [super prepareForReuse];    
    self.myImage.image = nil;  
}

我试图理解AsyncTask在Android上的使用,为此我已经开发了这个简单的代码.

令人惊讶的是,doInbackground被正确调用,我看到了日志,但没有调用其他两个方法.

我错过了什么吗？

谢谢advancde

  public class DownloadFilesTask extends AsyncTask<Void, Void, Void> {

        protected Void doInBackground(Void... params) {
            try {
                Log.i("Thread","1");
                Thread.sleep(1000);
                Log.i("Thread","2");
                Thread.sleep(1000);
                Log.i("Thread","3");
                Thread.sleep(1000);
                Log.i("Thread","4");
                Thread.sleep(1000);
                Log.i("Thread","5");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            return null;
        }

        protected void onProgressUpdate(Void... progress) {
            Log.i("Thread","onProgress");
        }

        protected void onPostExecute(Void... result) {
            Log.i("Thread","onPosts");
        }
    }

[编辑]

使用此代码,所有工作正常,除了 onProgressUpdate

public class DownloadFilesTask extends AsyncTask<Void, Integer, String> {

public String doInBackground(Void... params) {
    try {
        int i = 0;
        Log.i("Thread","1");
        Thread.sleep(1000);
        publishProgress(i++); …

我想传递数据(ArrayList间)Activities的Android

当实现的类Parcelable不包含自定义对象(Shop)时,一切正常,但如果我的类包含自定义对象,我该怎么做？

店

public Shop(Parcel in) {
    this.id  = in.readString();
    this.name = in.readString();
    this.type = in.readString();
    this.lat= in.readDouble();
    this.long= in.readDouble();
}
@Override
public void writeToParcel(Parcel dest, int flags) {

    dest.writeString(this.id);
    dest.writeString(this.name);
    dest.writeString(this.type);
    dest.writeDouble(this.lat);
    dest.writeDouble(this.long);
}

@SuppressWarnings("rawtypes")
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
    public Shop createFromParcel(Parcel in) {
        return new Shop(in);
    }

    public Shop[] newArray(int size) {
        return new Shop[size];
    }
};

这是我的另一个类商品,它包含商店的对象

public Offer(Parcel in) {
    this.id  = in.readInt();
    this.title …