Je suis vraiment nouveau pour le développement d'applications android et j'ai créé une application ImageGallery. J'essaie de mettre en œuvre pincer et zoomer pour les images dans la galerie. J'utilise https://github.com/chrisbanes/PhotoView pour implémenter le zoom et pincer.Maintenant, le problème est, son ne fonctionne pas correctement avec pager de vue. Si je supprime photoView.setVisibility(View.GONE); du code, je suis en mesure de zoomer les images, mais viewpager cesse de fonctionner et je ne suis pas en mesure de glisser des images. Si j'ajoute photoView.setVisibility(View.GONE); en arrière, je suis capable de balayer des images, mais pas capable de zoomer. Comment puis-je réparer cela ?Pincer le zoom et viewpager ne fonctionne pas en même temps
FullImageActivity.java:
public class FullImageActivity extends AppCompatActivity {
ImageView images;
int position;
int folderPosition;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_full_image);
Intent i = getIntent();
PhotoView photoView = (PhotoView) findViewById(R.id.photo_view);
photoView.setVisibility(View.GONE);
// Selected image id
position = i.getExtras().getInt("id");
folderPosition = i.getExtras().getInt("folderPosition");
Bundle extras = getIntent().getExtras();
String value = extras.getString("abc");
Glide.with(FullImageActivity.this)
.load(value)
.skipMemoryCache(false)
.into(photoView);
ViewPager mViewPager = (ViewPager) findViewById(R.id.viewpager);
mViewPager.setAdapter(new TouchImageAdapter(this,al_images, folderPosition));
mViewPager.setCurrentItem(position);
}
}
activity_full_image.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/jazzy_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.github.chrisbanes.photoview.PhotoView
android:id="@+id/photo_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:scaleType="centerCrop"/>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
TouchImageAdapter.java:
class TouchImageAdapter extends PagerAdapter {
Context context;
String filename;
ArrayList<Model_images> al_menu = new ArrayList<>();
int position,int_position;
public TouchImageAdapter(Context context,ArrayList<Model_images> al_menu, int position){
this.al_menu = al_menu;
this.context = context;
this.int_position = position;
}
@Override
public int getCount() {
return al_menu.get(int_position).getAl_imagepath().size();
}
@Override
public View instantiateItem(ViewGroup container, int position) {
ImageView img = new ImageView(container.getContext());
ViewGroup.LayoutParams lp= new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
img.setLayoutParams(lp);
img.setImageDrawable(getImageFromSdCard(filename,position));
container.addView(img, LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
return img;
}
public int getItemPosition(Object object) {
return POSITION_NONE;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
public Drawable getImageFromSdCard(String imageName,int position) {
Drawable d = null;
try {
String path = al_menu.get(int_position).getAl_imagepath().get(position)
+ "/";
Bitmap bitmap = BitmapFactory.decodeFile(path);
d = new BitmapDrawable(context.getResources(),bitmap);
} catch (IllegalArgumentException e) {
// TODO: handle exception
}
return d;
}
}