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Refactor ContactListAdapter to be reusable for other use cases.

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This commit introduces an abstract `BaseContactListAdapter` which provides
most of the adapter logic. The original `ContactListAdapter` extends it to
show date and online status of the contacts.

The new `ContactChooserAdapter` which is used for introductions extends
the `ContactListAdapter` and adds logic for graying out contacts from
different identities than the currently used one.

A new `ContactSelectorAdapter` extends the `BaseContactListAdapter` and
allows to select multiple contacts. It offers a method to return a
collection of all selected `ContactId`s.

This commit also sneaks in an animation when the 'Share Forum' button
is clicked.

Closes #292
This commit is contained in:
Torsten Grote
2016-04-22 20:14:47 -03:00
parent b17575bfa4
commit 9ea7113423
15 changed files with 580 additions and 460 deletions
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75
briar-android/src/org/briarproject/android/introduction/ContactChooserAdapter.java Normal file
View File

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package org.briarproject.android.introduction;
import android.content.Context;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.os.Build;
import android.view.View;
import org.briarproject.android.contact.ContactListAdapter;
import org.briarproject.android.contact.ContactListItem;
import org.briarproject.api.identity.AuthorId;
public class ContactChooserAdapter extends ContactListAdapter {
private AuthorId localAuthorId;
public ContactChooserAdapter(Context context,
OnItemClickListener listener) {
super(context, listener);
}
@Override
public void onBindViewHolder(final ContactHolder ui, final int position) {
super.onBindViewHolder(ui, position);
final ContactListItem item = getItem(position);
ui.name.setText(item.getContact().getAuthor().getName());
ui.identity.setText(item.getLocalAuthor().getName());
ui.identity.setVisibility(View.VISIBLE);
if (!item.getLocalAuthor().getId().equals(localAuthorId)) {
grayOutItem(ui);
}
}
@Override
public int compareContactListItems(ContactListItem c1, ContactListItem c2) {
return compareByName(c1, c2);
}
/**
* Set the identity from whose perspective the contact shall be chosen.
* Contacts that belong to a different author will be shown grayed out,
* but are still clickable.
* @param authorId The ID of the local Author
*/
public void setLocalAuthor(AuthorId authorId) {
localAuthorId = authorId;
notifyDataSetChanged();
}
private void grayOutItem(final ContactHolder ui) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
float alpha = 0.25f;
ui.bulb.setAlpha(alpha);
ui.avatar.setAlpha(alpha);
ui.name.setAlpha(alpha);
ui.date.setAlpha(alpha);
ui.identity.setAlpha(alpha);
} else {
ColorFilter colorFilter = new PorterDuffColorFilter(Color.GRAY,
PorterDuff.Mode.MULTIPLY);
ui.bulb.setColorFilter(colorFilter);
ui.avatar.setColorFilter(colorFilter);
ui.name.setEnabled(false);
ui.date.setEnabled(false);
}
}
}