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how to set images from horizontal scrollview into the viewpager in android?

 
arjun narahari
Greenhorn
Posts: 5
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i have written a program in which i am displaying a gridview of images and when i click on the image another activity opens which has a viewpager to slide my images and there is also a horizontal scrollview at the bottom of the same page which has the same images which is seen in my gridview , till here everything works fine , and yea all the images are being read from my sdcard Now when i click on the images inside my horizontal scrollview , the image which is displayed up in my viewpager should change , example , like the gallery of s4 , so i am not getting how to do it

My Code :Inside my imageview.onclick i do not know what to do for my program to work , please provide suggestions according to my program ,please need some help

public class FullScreenViewActivity extends Activity {

private Utils utils;
private FullScreenImageAdapter adapter;
private ViewPager viewPager;
LinearLayout myGallery;
ImageView iView;
int i;
String path;
int id;
File[] files;
HorizontalScrollView scrollView;
int position;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen_view);

viewPager = (ViewPager) findViewById(R.id.pager);
myGallery = (LinearLayout) findViewById(R.id.mygallery);
scrollView = (HorizontalScrollView) findViewById(R.id.horizontal1);
scrollView.setBackground(getResources().getDrawable(R.drawable.border));
String ExternalStorageDirectoryPath = Environment
.getExternalStorageDirectory().getAbsolutePath();

String targetPath = ExternalStorageDirectoryPath + "/Pictures/raw";
Toast.makeText(getApplicationContext(), targetPath, Toast.LENGTH_LONG)
.show();
File targetDirector = new File(targetPath);

files = targetDirector.listFiles();

for (File file : files) {

myGallery.addView(insertPhoto(file.getAbsolutePath()));

}

utils = new Utils(getApplicationContext());

Intent i = getIntent();
position = i.getIntExtra("position", 0);

adapter = new FullScreenImageAdapter(FullScreenViewActivity.this,
utils.getFilePaths());

viewPager.setAdapter(adapter);

// displaying selected image first
viewPager.setCurrentItem(position);
}

private View insertPhoto(final String path) {

final Bitmap bm = decodeSampledBitmapFromUri(path, 220, 220);

LinearLayout layout = new LinearLayout(getApplicationContext());
layout.setLayoutParams(new LayoutParams(250, 250));
layout.setGravity(Gravity.CENTER);

ImageView imageView = new ImageView(getApplicationContext());
imageView.setLayoutParams(new LayoutParams(220, 220));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setImageBitmap(bm);

// imageView.setId(i);
// iView.setId(i);
// viewPager.setId(i);

imageView.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
int id = v.getId();
viewPager.setCurrentItem(id);

}

});

layout.addView(imageView);

return layout;
}

public Bitmap decodeSampledBitmapFromUri(String path, int reqWidth,
int reqHeight) {

Bitmap bm = null;

// First decode with inJustDecodeBounds=true to check dimensions final
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);

// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth,
reqHeight);

// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
bm = BitmapFactory.decodeFile(path, options);

return bm;
}
}
 
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