DataBinding onClick的七种点击方式
最近在学习DataBinding的使用，中间遇到了不少的坑，记录以下，帮助以后学习DataBinding的朋友。
有一个ViewModel类，有一个xml，xml绑定了ViewModel.
1.@{click}
//xml:
//ViewModel:
publicvoidclick(Viewview){
}
2.不带参数：@{()->viewModel.click()}
//xml:
//ViewModel:
publicvoidclick(){
}
3.@{viewModel::click}
//xml:
//ViewModel:
publicvoidclick(Viewview){
}
tip:如果是在其它类中设置点击方法，如EventHandlers.java,其实与上面一致
//xml://UI类：绑定handler,如绑定ViewModel那样 EventHandlershandler=newEventHandlers(); binding.setHandler(handler); //EventHandlers执行click事件 publicvoidclick(Viewview){ //do }
4.带参数：@{()->viewModel.click(obj.id)}
//xml://ViewModel: publicvoidclick(longid){ //do }
5.ObservableField
//xml://IconView: publicfinalObservableField clickListener=newObservableField<>(); //xml所在的Activity类： binding.iconView.clickListener.set(newView.OnClickListener(){ @Override publicvoidonClick(Viewv){ Toast.makeText(getApplicationContext(),"iconView",Toast.LENGTH_SHORT).show(); } });
6.带参数
android:onClick="@{()->loadingModel.chooseLang(2)}"
publicvoidchooseLang(intlanguage){
LogUtil.i(TAG,"language="+language);
}
7.带view的参数
//xml:android:onClick="@{(view)->listener.onCheckBoxClick(obj,view)}" //adapter: publicvoidonCheckBoxClick(ToDoentity,Viewv){ }