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Duplicate items on wrong positions in GridView


Duplicate items on wrong positions in GridView

By : user2955318
Date : November 22 2020, 10:38 AM
it should still fix some issue Java is pass-by-reference in assigning objects. In getView method you are assigning new value to the same pointer for previous objects:
code :
 wall = wallpapersList.get(position);
 wall = new Object_Wallpaper();
 wall = wallpapersList.get(position);


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GridView items are displaying the wrong drawables sometimes

GridView items are displaying the wrong drawables sometimes


By : Rob Hoexter
Date : March 29 2020, 07:55 AM
To fix the issue you can do The source code you link to is flawed.
You cannot just set the text and image when the layout is inflated in getView(), as that code demonstrates. You need to set the text and image every time, whether it is for a newly-inflated layout or one that you are recycling via convertView.
Duplicate items in GridView when using ImageLoader library

Duplicate items in GridView when using ImageLoader library


By : Eylem Aydın
Date : March 29 2020, 07:55 AM
With these it helps I'm using GridView to display a list of ImageViews. Images are loaded from the Internet via ImageLoader library. I also implemented a custom adapter (which extends BaseAdapter): , try this....
code :
public class ImagePreviewAdapter extends BaseAdapter 
{

private Context mContext;

private List<LastPost> mPosts = new ArrayList<LastPost>();

private ImageLoader mImageLoader;

private ImageLoadingListener mLoadingListener;

/**
 * Constructor
 * 
 * @param context
 * @param posts
 * @param listener - using for showing loading progress
 */
public ImagePreviewAdapter(Context context, List<LastPost> posts, ImageLoadingListener listener) {
    this.mContext = context;
    this.mPosts = posts;
    this.mLoadingListener = listener;

    Activity activity = (Activity)mContext;
    this.mImageLoader = ((MeanwhileInRussia)activity.getApplication()).getImageLoader();
}

public int getCount() {
    return mPosts.size();
}

public LastPost getItem(int position) {
    return mPosts.get(position);
}

public long getItemId(int position) {
    LastPost post = mPosts.get(position);
    return Long.parseLong(post.getId());
}

/*
 * Create a new ImageView for each item referenced by the Adapter
 */
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView;

    // if it's not recycled, initialize some attributes
    if (convertView == null) {
        imageView = new ImageView(mContext);
        imageView.setLayoutParams(new GridView.LayoutParams(125, 125));
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        imageView.setPadding(0, 0, 0, 0);

    } 
   else 
      {
        ImageView restoringView = (ImageView)convertView;
        imageView = restoringView;
     }
        final String imageLink = mPosts.get(position).getImageurl();
        final DisplayImageOptions displayImgOptions = ImageLoaderConfigUtil
            .getDisplayImageOptions(mContext);

   if (mLoadingListener != null) 
    {
       mImageLoader.displayImage(imageLink, imageView,displayImgOptions,mLoadingListener);
       }
     else 
        {
            mImageLoader.displayImage(imageLink, imageView, displayImgOptions);
       }

    return imageView;
}
}
Getting inappropriate positions in GridView Drag and Drop when using Draggable Gridview in advancedrecyclerview library

Getting inappropriate positions in GridView Drag and Drop when using Draggable Gridview in advancedrecyclerview library


By : Seth Aho
Date : March 29 2020, 07:55 AM
wish help you to fix your issue This issue is resolved now and they had updated their code and added new methods to support my suggested functionalities and it will be added in next release of this library. And till now you can use this function by using this branch for library via JitPack and this functionality will be added soon in library.
code :
repositories {
    maven { url "https://jitpack.io" }
}

dependencies {
    compile 'com.github.h6ah4i:android-advancedrecyclerview:c9763e000fa8e80e6410f4a9d500e21b0e58a7e5'
}
Duplicate items in GridView widget

Duplicate items in GridView widget


By : Trần Quang Tú
Date : March 29 2020, 07:55 AM
Hope this helps Is the height or widget of your GridView or any of its parent containers set to wrap_content?
After many days of trial and error, I think I fixed a similar issue with a ListView by changing its height from wrap_content to match_parent. I haven't been able to reproduce the problem after the change (so far).
Why RecyclerView Items appear in wrong positions?

Why RecyclerView Items appear in wrong positions?


By : lvuandar
Date : March 29 2020, 07:55 AM
like below fixes the issue RecyclerView reuses existing Views to perform better. Therefore onBindViewHolder gets called and the previous View is updated with the new Values and Styles. If you don't replace an existing Value with the new one you will still see the old one.
From the RecyclerView Docs.
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