我在我的应用中使用数据绑定。我有一个应用程序模块,数据绑定工作成功。
但是,我也有一个“家庭模块”我正在尝试使用相同的技术,但数据绑定在xml中出现错误,并带有以下内容:
错误:(63,34)没有指定资源类型(在'onClick'上有值 '@ {视图模型:: onButtonClicked}')。
我发现this bug report表示这是一个问题,但已修复。
我看不出代码有任何问题,我认为问题是因为它在库模块中。
我能做些什么才能让它发挥作用吗?
主模块
activity_home.xml
<?xml version="1.0" encoding="utf-8"?>
<layout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<data>
<variable name="viewModel" type="com.flowmellow.projectx.home.ui.viewmodel.HomeViewModel"/>
</data>
<android.support.design.widget.CoordinatorLayout
android:id="@+id/home_screen"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.flowmellow.projectx.home.ui.viewmodel.HomeActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.flowmellow.projectx.home.ui.viewmodel.HomeActivity">
<TextView
android:text="@string/activity_home_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/activity_home_title"
android:textAppearance="@style/TextAppearance.AppCompat.Large"
android:layout_marginStart="16dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginLeft="16dp"
android:layout_marginEnd="16dp"
app:layout_constraintRight_toRightOf="parent"
android:layout_marginRight="16dp"
app:layout_constraintBottom_toTopOf="@+id/activity_home_button"
android:layout_marginBottom="64dp" />
<Button
android:text="@string/activity_home_button"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="@+id/activity_home_button"
style="@style/Widget.AppCompat.Button.Colored"
android:onClick="@{viewModel::onButtonClicked}"/>
</android.support.constraint.ConstraintLayout>
</android.support.design.widget.CoordinatorLayout>
</layout>
HomeActivity
public class HomeActivity extends AppCompatActivity {
private HomeViewModel mHomeViewModel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
final CustomSensorManager customSensorManager = new CustomSensorManager(sensorManager);
mHomeViewModel = new HomeViewModel(customSensorManager);
setBindingContentView(R.layout.activity_home);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
private void setBindingContentView(@LayoutRes int layoutResID) {
ActivityHomeBinding binding = DataBindingUtil.setContentView(this, layoutResID);
binding.setViewModel(mHomeViewModel);
}
}
HomeViewModel
public class HomeViewModel {
private CustomSensorManager mSensorManager;
public HomeViewModel(@NonNull CustomSensorManager sensorManager) {
mSensorManager = sensorManager;
}
public void onButtonClicked(View view) {
mSensorManager.scan(true);
}
}
的build.gradle
apply plugin: 'com.android.library'
android {
compileSdkVersion 25
buildToolsVersion "25.0.0"
defaultConfig {
minSdkVersion 16
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
dataBinding {
enabled = true
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:25.0.0'
compile 'com.android.support:design:25.0.0'
compile 'com.android.support.constraint:constraint-layout:+'
}
更新
可能是个错误。 link
我的问题:
引擎模块没有UI,因此错过了依赖关系,现在很有意义。