안드로이드개발 TIP
참고하세요~
ImageView 이미지가 커서 나는 OutOfMemory를 방지하기 위해 축소하세요~
샘플소스)
ImageView ivUnit = new ImageView(getContext());
LayoutParams lpImgUnit = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
ivUnit.setLayoutParams(lpImgUnit);
ivUnit.setImageBitmap(decodeSampledBitmapFromResource(getResources(), R.drawable.intro01_android, 140, 300));
((ViewPager)pager).addView(ivUnit, 0); //뷰를 추가
/*
* 이미지가 커서 나는 outofmemory를 방지하기 위해 축소해준다
*/
decodeSampledBitmapFromResource(Resources res, int resId,
int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(res, resId, options);
// Calculate inSampleSize
options.inSampleSize = calculateInImgSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeResource(res, resId, options);
}
public static int calculateInImgSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
if (width > height) {
inSampleSize = Math.round((float)height / (float)reqHeight);
} else {
inSampleSize = Math.round((float)width / (float)reqWidth);
}
}
return inSampleSize;
}
즐거운 시간 보내세요~
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