I want get a bitmap use Picasso but fail

Question

I am tried this code, but not getting the desired output.

 Picasso.with(getApplicationContext()).load(mPicList.get(position)).into(new Target() {
                    @Override
                    public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                        zoomImageView.setImageBitmap(bitmap);
                        Logger.getInstance().v("qw", "ViewPagerAdapter.134.onBitmapLoaded.");           
                    }

                    @Override
                    public void onBitmapFailed(Drawable errorDrawable) {
                        Logger.getInstance().v("qw", "ViewPagerAdapter.139.onBitmapFailed.");       
                    }

                    @Override
                    public void onPrepareLoad(Drawable placeHolderDrawable) {
                        Logger.getInstance().v("qw", "ViewPagerAdapter.144.onPrepareLoad.");
                    }
                });

It always print log onPrepareLoad why????

Why shouldn't it call that method? – Darwind Jun 27 '16 at 10:09 — Darwind, Jun 27 '16 at 10:09
What is the issue you are exactly facing? – Beena Jun 27 '16 at 10:12 — Beena, Jun 27 '16 at 10:12

score 0 · Answer 1 · answered Jun 27 '16 at 10:17

0

I'm not sure if there is a reason for new Target()... but you can try to use something like this:

Picasso.with(this).load(mPicList.get(position)).into(zoomImageView);

If you are in a Fragment, use getActivity() instead of this.

answered Jun 27 '16 at 10:17

Marijan

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thanks,but there is no Fragment,Only ViewPager Adapter – duke mars Jun 27 '16 at 10:22
You can pass `context` to your adapter and use it instead of `this` – Marijan Jun 27 '16 at 10:41

score 0 · Accepted Answer · edited May 23 '17 at 12:32

0

Your problem is that nothing keeps a strong reference to the Target instance so it gets garbage collected. You can't just call new Target() { ... } because there aren't any strong references to it. You need to store it on a field in a view holder or implement it on a subclass of a view.

See this answer:

https://stackoverflow.com/a/30681395/5476209

this guy explicitly managed garbage collection issue happening in library.

edited May 23 '17 at 12:32

Community

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answered Jun 27 '16 at 10:29

TapanHP

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success with zoomImageView.setTag(mTarget); – duke mars Jun 27 '16 at 10:51
1

no problem at all whenever you got any situation like this kindly go to that github library and at least check issues in library, your issue is already discussed there in picasso library. @dukemars – TapanHP Jun 27 '16 at 11:12
thanks,I have never use stackflow before,thanks for your suggestion – duke mars Jun 28 '16 at 02:41

I want get a bitmap use Picasso but fail

2 Answers2