将图像插入到gridview中

我试图用gridview显示来自db的图像，但它只是不起作用，并且没有错误。的代码是好的，当我reaplcing行将图像插入到gridview中

Glide.with(context).load(images.get(position)).into(imageView);

与线imageView.setImageResource(R.drawable.photo); 其做工精细的Cuz。这似乎有问题与uri，但uri很好，即时通讯在其他地方使用相同的uris。

public class PhotoPreviewAdapter extends BaseAdapter { 

private ArrayList<String> images; 
private Context context; 

public PhotoPreviewAdapter(Context context, ArrayList<String> images){ 
    this.context = context; 
    this.images = images; 
} 

@Override 
public int getCount() { 
    if(images == null){ 
     return 0; 
    } 
    return images.size(); 
} 

@Override 
public Object getItem(int position) { 
    return images.get(position); 
} 

@Override 
public long getItemId(int position) { 
    return 0; 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 
    if(convertView == null) { 
     convertView = LayoutInflater.from(context).inflate(R.layout.grid_item, parent, false); 
    } 
    ImageView imageView = (ImageView) convertView.findViewById(R.id.grid_item_image_view); 
    //imageView.setImageURI(Uri.fromFile(new File(context.getFilesDir(), images.get(position)))); 
    //Uri uri = Uri.parse(images.get(position)); 
    Glide.with(context).load(images.get(position)).into(imageView); 
    //imageView.setImageResource(R.drawable.takephoto); 
    //Toast.makeText(context, "" + images.get(position).toString(), Toast.LENGTH_SHORT).show(); 
    return convertView; 
}

}

public class Photo_preview extends AppCompatActivity { 

private SQLiteDatabase db; 
private Cursor c; 
private int frontImgCol, sideImgCol, backImgCol; 
private GridView gridView; 
private PhotoPreviewAdapter adapter; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_photo_preview); 

    DbHelper dbHelper = new DbHelper(this); 
    db = dbHelper.getWritableDatabase(); 

    gridView = (GridView) findViewById(R.id.gridView); 

    c = db.rawQuery("SELECT * FROM " + DbHelper.measuresTable.MEASUREMENTS_TABLE + " ORDER BY " + DbHelper.measuresTable.COL_DATETOSORT + " DESC", null); 

    frontImgCol = c.getColumnIndex(DbHelper.measuresTable.COL_FRONTIMG); 
    sideImgCol = c.getColumnIndex(DbHelper.measuresTable.COL_SIDEIMAGE); 
    backImgCol = c.getColumnIndex(DbHelper.measuresTable.COL_BACKIMG); 

    ArrayList<String> images = new ArrayList<>(); 

    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) { 
     images.add(c.getString(frontImgCol)); 
     images.add(c.getString(sideImgCol)); 
     images.add(c.getString(backImgCol)); 
    } 

    adapter = new PhotoPreviewAdapter(this, images); 
    gridView.setAdapter(adapter); 
}

}

来源

2017-09-22 Tal Brodkin

你能共享一个前充足的uri，这是行不通的，可能有问题的格式uri –

文件：///storage/emulated/0/1506112776661.jpg 100％好吧，因为如果我试图显示相同的uri一个imageView的工作。 –

试试这个

Glide.with(context) 
    .load(Uri.parse(images.get(position))) 
    .into(imageView);

或者这

Glide.with(context) 
     .load(Uri.fromFile(new File(images.get(position)))) 
     .into(imageView);

来源

2017-09-23 15:22:10

做最后的工作，你可以在评论中看到代码im艾蕾迪试试这个 –

将图像插入到gridview中

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