Just like instant coffee, saves 78% of your time on Android's Custom Adapters.

Ragunath Jawahar

Last update: Nov 25, 2022

Related tags

Adapter instant-adapter

Overview

Notice

Instant Adapter is now part of an even more awesome Adapter Kit project!

Instant Adapter

Just like instant coffee, saves 78%* of your time on Android's Custom Adapters.

_{*Based on internal assessments, this information is subjective.}

Quick Start I - InstantAdapter

Step 1 - Annotate methods in your model

class Book {
    ...

    @InstantText(viewId = R.id.title)
    public String getTitle() {
         return title;
    }

    @InstantText(viewId = R.id.author, formatString = "Author: %s")
    public String getAuthor() {
         return author;
    }
}

Step 2 - Instantiate and set an InstantAdapter to your ListView

InstantAdapter<Book> bookAdapter = new InstantAdapter<Book>(context, R.layout.book_item, Book.class, books);
bookListView.setAdapter(bookAdapter);

Quick Start II - InstantCursorAdapter

Step 1 - Annotate methods in your model

Step 2 - Extend InstantCursorAdapter<T>

class BookCursorAdapter extends InstantCursorAdapter<Book> {

    public BookCursorAdapter(Context context, Cursor cursor) {
        super(context, R.layout.book_item, Book.class, cursor);
    }

    @Override
    public Book getInstance(Cursor cursor) {
        String title = cursor.getString(cursor.getColumnIndex("title"));
        String author = cursor.getString(cursor.getColumnIndex("author"));
        return new Book(title, author);
    }
}

Step 3 - Instantiate and set an InstantCursorAdapter to your ListView

BookCursorAdapter bookCursorAdapter = new BookCursorAdapter(this, booksCursor);
bookListView.setAdapter(bookCursorAdapter);

License

Copyright 2013 Mobs and Geeks

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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Comments

App does not support views inherited from TextView

I found that adapter does not support classes inherited from TextView (eg. RobotoTextView).

Fortunately fix is easy.

In class InstantAdapterCore (around line 300) you simply change this fragment of code from

Class<? extends View> viewType = holder.view.getClass();
if (viewType.isAssignableFrom(TextView.class)) {
      updateTextView(holder, returnValue);
}

Class<? extends View> viewType = holder.view.getClass();
if (TextView.class.isAssignableFrom(viewType)) {
      updateTextView(holder, returnValue);
}

opened by thubalek 1

Just like instant coffee, saves 78% of your time on Android's Custom Adapters.

Related tags

Overview

Notice

Instant Adapter

Quick Start I - InstantAdapter

Quick Start II - InstantCursorAdapter

License

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Comments

App does not support views inherited from TextView

Owner

Ragunath Jawahar

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