Hi guys I am trying to load a image from a url and after loading that i am trying to re scale it such that it fits the whole screen after that the text and the buttons present are available below the image which are wrapped around using scroll view
this is my fragment
public class FirstFragment extends Fragment {
ImageView im;
Bitmap bitmap;
Drawable dr;
Bitmap bitap;
Bitmap newBitmap;
RelativeLayout rel;
View v;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
v = inflater.inflate(R.layout.first_frag, container, false);
rel = (RelativeLayout) v.findViewById(R.id.relativla);
rel.setVisibility(View.INVISIBLE);
new LoadImage().execute("http://opinions.esy.es/bg.jpg");
Button b = (Button) v.findViewById(R.id.navi);
im = (ImageView) v.findViewById(R.id.imageView);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(getContext(), Navi.class);
startActivity(i);
}
});
return v;
}
public static FirstFragment newInstance(String text) {
FirstFragment f = new FirstFragment();
Bundle b = new Bundle();
b.putString("msg", text);
f.setArguments(b);
return f;
}
private class LoadImage extends AsyncTask<String, String, Bitmap> {
@Override
protected void onPreExecute() {
super.onPreExecute();
}
protected Bitmap doInBackground(String... args) {
try {
bitmap = BitmapFactory.decodeStream((InputStream) new URL(args[0]).getContent());
} catch (Exception e) {
e.printStackTrace();
}
return bitmap;
}
protected void onPostExecute(Bitmap image) {
if(image != null){
dr = new BitmapDrawable(getResources(),image);
bitap = ((BitmapDrawable) dr).getBitmap();
float scalingFactor = getBitmapScalingFactor(bitap);
Bitmap newBitmap = Util.ScaleBitmap(bitmap, scalingFactor);
im.setImageBitmap(newBitmap);
}else{
Toast.makeText(getContext(), "Image Does Not exist or Network Error", Toast.LENGTH_SHORT).show();
}
}
}
private float getBitmapScalingFactor(Bitmap bm) {
Toast.makeText(getContext(),"entered here",Toast.LENGTH_LONG).show();
// Get display width from device
int displayWidth = getActivity().getWindowManager().getDefaultDisplay().getWidth();
// Get margin to use it for calculating to max width of the ImageView
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams)this.im.getLayoutParams();
int leftMargin = layoutParams.leftMargin;
int rightMargin = layoutParams.rightMargin;
// Calculate the max width of the imageView
int imageViewWidth = displayWidth - (leftMargin + rightMargin);
rel.setVisibility(View.VISIBLE);
// Calculate scaling factor and return it
return ( (float) imageViewWidth / (float) bm.getWidth() );
}
}
My Util class
public class Util {
public static Bitmap ScaleBitmap(Bitmap bm, float scalingFactor) {
int scaleHeight = (int) (bm.getHeight() * scalingFactor);
int scaleWidth = (int) (bm.getWidth() * scalingFactor);
return Bitmap.createScaledBitmap(bm, scaleWidth, scaleHeight, true);
}
}
XML File
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollView"
android:fillViewport="true"
>
<RelativeLayout
android:id="@+id/relativla"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<Button
android:layout_width="30dp"
android:layout_height="30dp"
android:background="@drawable/hamburger"
android:id="@+id/navi"
android:padding="10dp"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:id="@+id/imageView"
android:scaleType="fitCenter"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Diet Plans"
android:padding="10dp"
android:layout_marginTop="10dp"
android:textColor="@android:color/black"
android:textSize="25sp"
android:id="@+id/textView5"
android:layout_below="@+id/imageView"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/descrpitiondietplan"
android:textColor="#000000"
android:gravity="center"
android:layout_gravity="center_vertical"
android:textSize="15sp"
android:padding="10dp"
android:id="@+id/textView6"
android:layout_below="@+id/textView5"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Our Diet Plans"
android:textColor="@android:color/black"
android:padding="10dp"
android:textSize="25sp"
android:id="@+id/textView7"
android:layout_below="@+id/textView6"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/textView7"
android:layout_centerHorizontal="true"
android:padding="10dp">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Basic Diet Plan"
android:textColor="@android:color/white"
android:id="@+id/normmal"
android:background="@color/btn_login"
android:layout_marginBottom="10dp"
android:layout_gravity="center_horizontal" />
</LinearLayout>
</RelativeLayout>
</ScrollView>
It the toast insider the getBitmapScaling factor is called after the relative layout is viewed
Hope you guys can help me solve my issue
