public void updateActionBarTitle() {
actionBar.setTitle(
getString(
R.string.image_index,
pagerFragment.getViewPager().getCurrentItem() + 1,
pagerFragment.getPaths().size()));
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo_pager);
int currentItem = getIntent().getIntExtra(EXTRA_CURRENT_ITEM, 0);
List<String> paths = getIntent().getStringArrayListExtra(EXTRA_PHOTOS);
pagerFragment =
(ImagePagerFragment) getSupportFragmentManager().findFragmentById(R.id.photoPagerFragment);
pagerFragment.setPhotos(paths, currentItem);
Toolbar mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
updateActionBarTitle();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
actionBar.setElevation(25);
}
pagerFragment
.getViewPager()
.addOnPageChangeListener(
new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(
int position, float positionOffset, int positionOffsetPixels) {
updateActionBarTitle();
}
@Override
public void onPageSelected(int i) {}
@Override
public void onPageScrollStateChanged(int i) {}
});
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
onBackPressed();
return true;
}
if (item.getItemId() == R.id.delete) {
final int index = pagerFragment.getCurrentItem();
final String deletedPath = pagerFragment.getPaths().get(index);
// Snackbar snackbar = Snackbar.make(pagerFragment.getView(), R.string.deleted_a_photo,
// Snackbar.LENGTH_LONG);
if (pagerFragment.getPaths().size() <= 1) {
// show confirm dialog
new AlertDialog.Builder(this)
.setTitle(R.string.confirm_to_delete)
.setPositiveButton(
R.string.yes,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
setResult(RESULT_OK);
finish();
}
})
.setNegativeButton(
R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
})
.show();
} else {
Toast.makeText(this, R.string.deleted_a_photo, Toast.LENGTH_SHORT).show();
// snackbar.show();
pagerFragment.getPaths().remove(index);
// pagerFragment.getViewPager().removeViewAt(index);
pagerFragment.getViewPager().getAdapter().notifyDataSetChanged();
}
// snackbar.setAction(R.string.undo, new View.OnClickListener() {
// @Override public void onClick(View view) {
// if (pagerFragment.getPaths().size() > 0) {
// pagerFragment.getPaths().add(index, deletedPath);
// } else {
// pagerFragment.getPaths().add(deletedPath);
// }
// pagerFragment.getViewPager().getAdapter().notifyDataSetChanged();
// pagerFragment.getViewPager().setCurrentItem(index, true);
// }
// });
return true;
}
return super.onOptionsItemSelected(item);
}