我想制作一张图片的缩略图。图片在资源可绘制文件中。谁能帮帮我。
最佳答案
试试这段代码
im=(ImageView)findViewById(R.id.imageView1);
byte[] imageData = null;
try
{
final int THUMBNAIL_SIZE = 64;
//InputStream is=getAssets().open("apple-android-battle.jpg");
FileInputStream fis = new FileInputStream("/sdcard/apple.jpg");
Bitmap imageBitmap = BitmapFactory.decodeStream(fis);
Float width = new Float(imageBitmap.getWidth());
Float height = new Float(imageBitmap.getHeight());
Float ratio = width/height;
imageBitmap = Bitmap.createScaledBitmap(imageBitmap, (int)(THUMBNAIL_SIZE * ratio), THUMBNAIL_SIZE, false);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
imageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
imageData = baos.toByteArray();
im.setImageBitmap(imageBitmap);
}
catch(Exception ex) {
}
关于android - 资源中图像的缩略图,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9461283/