Bapter


Source link: https://github.com/Ekalips/Bapter

Bapter

This is small library with few annotations and processors that will generate all RecyclerView.Adapters stuff that you need with only few lines of annotations

Usage

Just be sure, that DataBinding is enabled in your project.

@Adapter(
  dataSetType = @DataSetType(dataSetType = TestData.class),
  useViews = {

 @ViewFor(dataClass = TestData.class, viewRes = R.layout.rv_item_test_adapter)
  
}
,
  map = {
@Bind(bindClass = TestData.class, bindMode = BindMode.variable, bindingResourceName = "testData"),

 @Bind(bindClass = Void.class, bindMode = BindMode.method, bindingResourceName = "clickAdapter", methodName = "myMethod", methodCallMode = MethodCallMode.onClick)
}
) public class TestAdapter {
  
}
 

@Adapter - Main annotation that will contain other ones.

dataSetType = @DataSetType(dataSetType = TestData.class)

This will specify data that you'll use in your adapter. In this example, adapter will have private List<TestData> data as a data source.

useViews = { @ViewFor(dataClass = TestData.class, viewRes = R.layout.rv_item_test_adapter) }

Here you can specify what getItemViewType will return (based on data class)

map = { .. } - Annotation for specifying behaviour of onBindViewHolder method

@Bind

Basically all this is main thing that you carry about. bindingResourceName field corresponds to BR constant name. For example if your variable is 'BR.test' than you need bindingResourceName = "test"

@Bind can be 2 types ( bindMode):

  1. Bind as variable. This will generate simple binding.setVariable(BR.., object) based on bindClass ( if (object instacneof bindClass)..);

  2. Bind as method. Requires methodName specification for further abstract method generation. This can generate 3 things:

    a) Bind with return method ( methodCallMode = MethodCallMode.asReturn). This will generate abstract method with specified method name and set it's return value as variable ( binding.setVariable(BR.., result)); b) Bind as "onClick" ( methodCallMode = MethodCallMode.onClick). This will set View.OnClickListener to your BR variable. And then when click occurs it'll call specified method ('methodName'); c) Bind as "onLongClick" ( methodCallMode = MethodCallMode.onLongClick). Same as previous, but with View.OnLongClickListener.

All this stuff will be generated as "$CLASS_NAME$Generated" (in my example "TestAdapterGenerated"). And you can simply create instance of this class, implement generated abstract methods (if any was requested) and set it as adapter to your RecyclerView

To set data to this adapter you have 2 options:

  1. Just call adapter.setData(...) on your adapter instance.
  2. Bind it. There is one @BindingAdapter that coems from box. You can bind any List with src annotation and @BindingAdapter will call setData for you.

How to get

maven {

  url "http://dl.bintray.com/ekalips/Bapter" 
}
  compile 'com.ekalips:adapter-annotation:0.1.1' annotationProcessor 'com.ekalips:adapter-processor:0.1.1' 

Licence

Copyright 2017 Ekalips  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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