Ответ 1
этот xml может обрабатывать различные размеры изображения
<ScrollView
android:id="@+id/vScroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="51dp"
android:scrollbars="none" >
<HorizontalScrollView
android:id="@+id/hScroll"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="none"
android:layout_gravity="center">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/imgFullscreen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="fitXY" />
</LinearLayout>
</HorizontalScrollView>
</ScrollView>
в java
fullImageView = (ImageView) findViewById(R.id.imgFullscreen);
selectedPhoto = (FeedItem) i.getSerializableExtra(TAG_SEL_IMAGE);
zoom = 1;
if (selectedPhoto != null) {
fetchFullResolutionImage();
} else {
Toast.makeText(getApplicationContext(),
getString(R.string.msg_unknown_error), Toast.LENGTH_SHORT)
.show();
}
private void fetchFullResolutionImage() {
try {
final URL url = new URL(selectedPhoto.getImge());
new Thread(new Runnable() {
@Override
public void run() {
try {
Bitmap bmp = BitmapFactory.decodeStream(url
.openStream());
if (bmp != null)
setImage(bmp);
else {
showToast("Error fetching image!");
}
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
} catch (IOException e) {
e.printStackTrace();
}
}
private void setImage(final Bitmap bmp) {
runOnUiThread(new Runnable() {
public void run() {
fullImageView.setImageBitmap(bmp);
adjustImageAspect(selectedPhoto.getWidth(),
selectedPhoto.getHeight());
}
});
}
private void adjustImageAspect(int bWidth, int bHeight) {
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
if (bWidth == 0 || bHeight == 0)
return;
int swidth;
if (android.os.Build.VERSION.SDK_INT >= 13) {
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
swidth = size.x;
} else {
Display display = getWindowManager().getDefaultDisplay();
swidth = display.getWidth();
}
int new_height = 0;
new_height = swidth * bHeight / bWidth;
params.width = swidth;
params.height = new_height;
saveW = swidth;
saveH = new_height;
fullImageView.setLayoutParams(params);
}