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Android Data Binding Libraryでandroid:onClickにBind

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最近じわじわと来ている、AndroidでMVVMライクな体験ができるライブラリ [Data Binding Library] (https://developer.android.com/intl/ja/tools/data-binding/guide.html)ですが、.NETのWPFっぽくonClickにOnClickListenerをBindしようとするとエラーがでるという現象に遭遇しました。

2つ解決策を見つけたので記しておきます。解決策①が簡単です。

#したいこと

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:onClick="@{viewModel.hogeCommand}"/>

ViewModel側

public class ViewModel {

    public View.OnClickListener getHogeCommand() {
    
        return hogeCommand;
    }
}

##解決策①
android:onClickの代わりにandroid:onClickListenerを使う

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:onClickListener="@{viewModel.hogeCommand}"/>

##解決策②
Renamed Setters を使う
ViewModel側

@BindingMethods({
    @BindingMethod(type = Button.class,
                attribute = "android:onClick",
                method = "setOnClickListener")
})
public class ViewModel {

    @BindingMethod(type = Button.class,
                attribute = "android:onClick",
                method = "setOnClickListener")
    public View.OnClickListener getHogeCommand() {
    
        return hogeCommand;
    }
}
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