如何COM preSS形象ImageView的android系统 [英] how to compress image for imageview in android

问题描述

您好我想显示3或4影像在我看来，存储在SD卡的图像的大小为1至2 MB左右。 我的问题是，当我使用图像的ImageView则抛出内存异常的出 我有创造位，当解码图像位图通过选项

Hi I want to show 3 or 4 image in my view that are stored in sdcard the size of images is 1-2 MB approximately. My problem is when I use image in imageview then it throw out of memory exception i have create bit and pass option when decoding image to bitmap

02-26 13:16:54.946: ERROR/dalvikvm-heap(23410): 15980544-byte external allocation too large for this process.
02-26 13:16:54.946: ERROR/dalvikvm(23410): Out of memory: Heap Size=3407KB, Allocated=2801KB, Bitmap Size=15630KB, Limit=21884KB
02-26 13:16:54.946: ERROR/dalvikvm(23410): Trim info: Footprint=3463KB, Allowed Footprint=3655KB, Trimmed=248KB
02-26 13:16:54.946: ERROR/GraphicsJNI(23410): VM won't let us allocate 15980544 bytes
02-26 13:16:54.986: ERROR/AndroidRuntime(23410): FATAL EXCEPTION: main
02-26 13:16:54.986: ERROR/AndroidRuntime(23410): java.lang.OutOfMemoryError: bitmap size exceeds VM budget
02-26 13:16:54.986: ERROR/AndroidRuntime(23410):     at android.graphics.BitmapFactory.nativeDecodeFile(Native Method)
02-26 13:16:54.986: ERROR/AndroidRuntime(23410):     at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:325)

任何机构可以帮助我解决我的问题 在此先感谢

can any body help me in solving my problem thanks in advance

推荐答案

我发现我的问题的解决方案，这正是我code：

I have found solution of my problem there is my code :

BitmapFactory.Options options = new BitmapFactory.Options();
options.inTempStorage = new byte[24*1024];  
options.inJustDecodeBounds = false;
options.inSampleSize=32;     
bmp1=BitmapFactory.decodeFile(filepath1,options);  
Bitmap b1=ThumbnailUtils.extractThumbnail(bmp1,30, 30);  
iv1.setImageBitmap(b);  
 if(bmp1!=null){  
   bmp1.recycle();
   }  
         bmp1=BitmapFactory.decodeFile(filepath1,options);
 Bitmap b2=ThumbnailUtils.extractThumbnail(bmp1,30, 30);  
 iv2.setImageBitmap(b2);  
if(bmp1!=null){  
 bmp1.recycle();
 }

同样地，我都用它来做四个图像查看和设置图像，无需OOM异常

similarly I have use it for four image view and set image without OOM Exception

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