Getting Error In SetGridViewItemClickListener And Also How Can Show Images From Drawable

I have created android app using GridView with ViewPager for images like gallery or small book which have 14 images am showing all image from URL. i want also help that how can sho

Solution 1:

You need to include the ImageActivity in the AndroidManifest.

Solution 2:

I have done a similar project with you and I use this way:

private ArrayList<String> urlImage = new ArrayList<>();

Remember, add data to urlImage

gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Intent intent = new Intent(getApplicationContext(), ShowImageActivity.class); intent.putExtra(KEY_URL_IMAGE, urlImage); intent.putExtra(KEY_POSITION, String.valueOf(position)); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } });

In ShowImageActivity:

Intent intent = getIntent(); if (intent.getExtras() != null) { url = (ArrayList<String>) intent.getExtras().get(KEY_URL_IMAGE); position = Integer.parseInt(String.valueOf(intent.getExtras().get(KEY_POSITION))); Toast.makeText(getApplicationContext(), "URL image" + url.get(position) + "position " + position, Toast.LENGTH_LONG).show(); }

final ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager); viewPager.setAdapter(new PagerAdapter(getSupportFragmentManager(), url)); final ViewPager.LayoutParams layoutParams = new ViewPager.LayoutParams(); layoutParams.width = ViewPager.LayoutParams.MATCH_PARENT; layoutParams.height = ViewPager.LayoutParams.WRAP_CONTENT; layoutParams.gravity = Gravity.BOTTOM; viewPager.setCurrentItem(position);

and show image from drawable

imageView.setImageResource(getImageId(view.getContext(),resourceImage));

public static int getImageId(Context context, String imageName) { return context.getResources().getIdentifier("drawable/" + imageName, null, context.getPackageName()); }

Solution 3:

You are passing OnItemClickListener in the place of context. You need to use the instance of the class like below.

Intent intent = new Intent(MainActivity.this, ImageActivity.class);

Note: If you use this, then it would have the instance of the class it is written in. In your code, you are using this inside an anonymous class of OnItemClickListener

Also, you need to check if you have defined your activity in the manifest file.