我的库模块中有一个抽象的BaseActivity:
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Normal method to inflate the layout
mBinding = DataBindingUtil.setContentView(this, R.layout.base_view_stub_layout);
AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
if (mBinding != null && mBinding.viewStub != null && mBinding.viewStub.getViewStub() != null) {
mBinding.viewStub.getViewStub().setLayoutResource(getLayoutId());
}
if (!hasStubInflated) {
View inflatedView = mBinding.viewStub.getViewStub().inflate();
//Abstract method
onViewStubInflated(inflatedView, savedInstanceState);
//Normal method to hide progress bar
onViewStubInflated();
}
initControllers();
handleViews();
setListeners();
restoreValues(savedInstanceState);
}
来自AppModule的MainActivity扩展了库模块的BaseActivity,因此获得了覆盖的抽象方法:
MainActivity扩展BaseActivity
private ActivityMainBinding mBinding;
@Override
public int getLayoutId() {
return R.layout.activity_main;
}
@Override
public void onViewStubInflated(View inflatedView, Bundle savedInstanceState) {
if (mBinding == null || mBinding.getRoot() != inflatedView) {
mBinding = ActivityMainBinding.bind(inflatedView);
}
}
[运行应用程序时,我得到:
Caused by: java.lang.RuntimeException: view must have a tag
at com.example.android.emailapp.DataBinderMapperImpl.getDataBinder(DataBinderMapperImpl.java:67)
at androidx.databinding.MergedDataBinderMapper.getDataBinder(MergedDataBinderMapper.java:74)
at androidx.databinding.DataBindingUtil.bind(DataBindingUtil.java:199)
at androidx.databinding.ViewDataBinding.bind(ViewDataBinding.java:693)
at com.example.android.emailapp.databinding.ActivityMainBinding.bind(ActivityMainBinding.java:99)
at com.example.android.emailapp.databinding.ActivityMainBinding.bind(ActivityMainBinding.java:87)
at com.example.android.emailapp.login.MainActivity.onViewStubInflated(MainActivity.java:86)
at com.library.android.common.ui.baseui.BaseActivity.onCreate(BaseActivity.java:52)
请注意,我在BaseActivity和MainActivity的xml中都具有布局标记。
我尝试过this,但没有成功。
是mBinding.viewStub.getViewStub()。setLayoutResource(getLayoutId()) BaseActivity中的问题,因为它将尝试从AppModule获取布局?如果是那样的话,我该如何解决呢? ?
如果您知道答案,请尝试解释为什么会发生这种情况以及解决方案...
已经尝试过
如果您使用自定义类作为your_layout.xml
的根视图,那么您必须覆盖视图的所有构造函数
class MyCustomView : FrameLayout {
constructor(context: Context) : super(context){
...
}
constructor(context: Context, attrs: AttributeSet?) : super(context, attrs){
...
}
constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr){
...
}
}
<layout xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable name="viewModel" type="......" />
</data>
<MyCustomView
android:layout_width="match_parent"
android:layout_height="match_parent">
</MyCustomView>
</layout>