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我要縮放的位圖,來精確地裝配到線性佈局位圖(ImageView的)不正確縮放,以適合精確地的LinearLayout
我有一的LinearLayout
<LinearLayout
android:id="@+id/lin_layout1"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:paddingTop="20dip" >
<!-- <ImageView
android:id="@+id/image1"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
android:layout_marginTop="10dip"
android:layout_weight="0.66"
android:layout_marginBottom="10dip"
android:src="@drawable/abc"
/> -->
</LinearLayout>
我已經定義一個imageview的動態如下,
Imageview img = new ImageView(myclass);
LinearLayout.LayoutParams vp = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.MATCH_PARENT, 1);
vp.setMargins(2, 20, 2, 20);
vp.gravity=Gravity.BOTTOM;
img.setLayoutParams(vp);
img.setAdjustViewBounds(true);
我已經從數據庫中生成放大的位圖
我有如下
public static Bitmap decodeSampledBitmapFromDatabase(byte[] bs,
int length, Options options2,int reqwidth,int reqheight)
{
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeByteArray(bs, 0, length, options2);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options2, reqwidth, reqheight);
Log.d("In sample size", ""+options.inSampleSize);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
Bitmap bmap= BitmapFactory.decodeByteArray(bs, 0, length, options);
return Bitmap.createScaledBitmap(bmap, 130, reqheight, false);
}
public static int calculateInSampleSize(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;
}
解碼,並最終生成位圖設置爲ImageView的
img.setImageBitmap(bmnew);
img.setOnClickListener(smile_reader);
img.setOnLongClickListener(smile_reader);
l1.addView(img);//Added imageview to linearlayout
,但它不正確縮放,
imageview的高度不匹配的機器人用的LinearLayout高度。
imageview看起來比要求的小,我不知道我在哪裏丟失 所以任何幫助appriciated。
在此先感謝。
地獄o vijay,我也有同樣的問題。你有沒有解決這個問題..? – Dory