ButterKt is an improved version of KotterKnife. It solves the following problems of KotterKnife:
- Lazy binding is dangerous if a layout ID is used in multiple files.
- Unbind call for Fragment
For the detailed explanation, see the following article.
Currently, ButterKt does not support installation as a dependency. As the code is short, I recommend you to copy ButterKt.kt into your source code.
class MainActivity : AppCompatActivity() {
private val title by bindView(R.id.item_title)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
bindViews()
}
}Call bindViews() in Activity#onCreate, View#onFinishInflate, Dialog#onCreate, RecyclerView.ViewHolder#init
class TestFragment : Fragment() {
private val title by bindView(R.id.item_title)
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup, savedInstanceState: Bundle?) {
val view = inflater.inflate(R.layout.fragment_test, container, false)
bindViews(view)
return view
}
override fun onDestroyView() {
super.onDestroyView()
unbindViews()
}
}Call bindViews(view) in Fragment#onCreateView, and unbindViews() in Framgent#onDestroyView
class TestViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
private val title by bindView(R.id.item_title)
init {
bindViews()
}
}Call bindViews() in init block
class TestViewHolder(val view: View) : ButterViewHolder {
private val title by bindView(R.id.item_title)
fun someFunction1() {
bindViews(view)
}
fun someFunction2() {
unbindViews()
}
}Call bindViews(view) and unbindViews() if you think it's appropriate.
Copyright 2018 Jin-Hyung Kim
Copyright 2014 Jake Wharton
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
https://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.