不成功的搖籃構建定製XML標籤和數據綁定

Question

我收到了，我要使用數據綁定和綁定佈局的自定義XML標記運行項目下面描述的生成錯誤：

佈局：

<data> 
    <variable 
     name="data" 
     type="com.melontech.sff.viewmodel.DataViewModel" /> 
</data> 

... 

<ImageView 
    android:id="@+id/image" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:src="@mipmap/placeholder_img" 
    app:imageUrl="@{data.imageUrl}" /> 

... 

視圖模型具有以下綁定適配器：

@BindingAdapter("bind:imageUrl") 
public static void getImageUrl(ImageView imageView, String url) { 
    Timber.d("LOAD IMAGE WITH URL %s", url); 
} 

創建的ViewHolder，使綁定是以下一個代碼：

@Override 
public ModelViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    ModelListItemBinding binding = DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), R.layout.model_list_item, parent, false); 
    return new ModelViewHolder(binding); 
} 

生成錯誤：

Error:Execution failed for task ':app:transformJackWithJackForDebug'. 

com.android.jack.ir.JNodeInternalError: java.lang.Exception: java.lang.RuntimeException: failure, see logs for details. cannot generate view binders java.lang.IllegalArgumentException: element public default java.util.stream.IntStream codePoints() is not a member of the containing type java.lang.String nor any of its superclasses at com.android.jack.eclipse.jdt.internal.compiler.apt.model.TypesImpl.asMemberOf(TypesImpl.java:129) at android.databinding.tool.reflection.annotation.AnnotationMethod.(AnnotationMethod.java:49) at android.databinding.tool.reflection.annotation.AnnotationClass.getDeclaredMethods(AnnotationClass.java:314) at android.databinding.tool.reflection.ModelClass.getAbstractMethods(ModelClass.java:401) at android.databinding.tool.expr.MethodBaseExpr.resolveListenersAsMethodReference(MethodBaseExpr.java:71) at android.databinding.tool.expr.FieldAccessExpr.resolveListeners(FieldAccessExpr.java:131) at android.databinding.tool.Binding.resolveListeners(Binding.java:65) at android.databinding.tool.BindingTarget.resolveListeners(BindingTarget.java:164) at android.databinding.tool.LayoutBinder.(LayoutBinder.java:250) at android.databinding.tool.DataBinder.(DataBinder.java:52) at android.databinding.tool.CompilerChef.ensureDataBinder(CompilerChef.java:88) at android.databinding.tool.CompilerChef.sealModels(CompilerChef.java:187) at android.databinding.annotationprocessor.ProcessExpressions.writeResourceBundle(ProcessExpressions.java:184) at android.databinding.annotationprocessor.ProcessExpressions.onHandleStep(ProcessExpressions.java:86) at android.databinding.annotationprocessor.ProcessDataBinding$ProcessingStep.runStep(ProcessDataBinding.java:189) at android.databinding.annotationprocessor.ProcessDataBinding$ProcessingStep.access$000(ProcessDataBinding.java:174) at android.databinding.annotationprocessor.ProcessDataBinding.process(ProcessDataBinding.java:79) at com.android.jack.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.handleProcessor(RoundDispatcher.java:139) at com.android.jack.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.round(RoundDispatcher.java:121) at com.android.jack.eclipse.jdt.internal.compiler.apt.dispatch.BaseAnnotationProcessorManager.processAnnotations(BaseAnnotationProcessorManager.java:159) at com.android.jack.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:909) at com.android.jack.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:434) at com.android.jack.frontend.java.JAstBuilder.compile(JAstBuilder.java:269) at com.android.jack.frontend.java.JackBatchCompiler.performCompilation(JackBatchCompiler.java:219) at com.android.jack.eclipse.jdt.internal.compiler.batch.Main.compile(Main.java:1712) at com.android.jack.frontend.java.JackBatchCompiler.compile(JackBatchCompiler.java:184) at com.android.jack.Jack.buildSession(Jack.java:1052) at com.android.jack.Jack.run(Jack.java:540) at com.android.jack.api.v01.impl.Api01ConfigImpl$Api01CompilationTaskImpl.run(Api01ConfigImpl.java:124) at com.android.builder.core.JackToolchain.convertUsingJackApis(JackToolchain.java:310) at com.android.builder.core.JackToolchain.convertUsingApis(JackToolchain.java:189) at com.android.builder.core.JackToolchain.convert(JackToolchain.java:170) at com.android.build.gradle.internal.transforms.JackTransform.runJack(JackTransform.java:230) at com.android.build.gradle.internal.transforms.JackTransform.transform(JackTransform.java:198) at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:185) at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:181) at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102) at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:176) at sun.reflect.GeneratedMethodAccessor311.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:163) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:123) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:95) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:76) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:55) at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62) at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88) at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:46) at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51) at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54) at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:236) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:228) at org.gradle.internal.Transformers$4.transform(Transformers.java:169) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:61) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:228) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:215) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:77) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:58) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:32) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:113) at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37) at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23) at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43) at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30) at org.gradle.initialization.DefaultGradleLauncher$3.execute(DefaultGradleLauncher.java:196) at org.gradle.initialization.DefaultGradleLauncher$3.execute(DefaultGradleLauncher.java:193) at org.gradle.internal.Transformers$4.transform(Transformers.java:169) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:56) at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:193) at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:119) at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:102) at org.gradle.launcher.exec.GradleBuildController.run(GradleBuildController.java:71) at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:50) at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) at org.gradle.tooling.internal.provider.runner.RunAsBuildOperationBuildActionRunner$1.execute(RunAsBuildOperationBuildActionRunner.java:43) at org.gradle.tooling.internal.provider.runner.RunAsBuildOperationBuildActionRunner$1.execute(RunAsBuildOperationBuildActionRunner.java:40) at org.gradle.internal.Transformers$4.transform(Transformers.java:169) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:56) at org.gradle.tooling.internal.provider.runner.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:40) at org.gradle.tooling.internal.provider.runner.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:75) at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26) at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:75) at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:49) at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:44) at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:29) at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:47) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72) at org.gradle.util.Swapper.swap(Swapper.java:38) at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50) at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54) at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

數據綁定在搖籃文件中啓用。

如果我移動這個功能在一個單獨的清潔工程和數據綁定這樣的：

ActivityMainBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_main); 

自定義XML屬性的工作就像預期和建立是成功的。

你有什麼想法可能是構建錯誤的原因是什麼？

Answer 1

Jd Prajapati這裏是我的ViewModel類：

public class DataViewModel { 

    private Data data; 

    public DataViewModel() { 
    } 

    public DataViewModel(Data data) { 
     this.data = data; 
    } 

    public Data getData() { 
     return data; 
    } 

    public void setData(Data data) { 
     this.data = data; 
    } 

    public String getTitle() { 
     if (data != null) { 
      if (!TextUtils.isEmpty(data.getTitle())) { 
       return data.getTitle(); 
      } 
     } 
     //Case when title doesn't exist 
     return ""; 
    } 

    public String getImageUrl() { 
     if (data != null) { 
      if (!TextUtils.isEmpty(data.getMainPic())) { 
       return data.getMainPic(); 
      } 
     } 
     //Case when poster url doesn't exist 
     return ""; 
    } 

    @BindingAdapter("imageUrl") 
    public static void getImageUrl(ImageView imageView, String url) { 
     Timber.d("LOAD IMAGE WITH URL %s", url); 
    } 
} 

BTW我已經找到一種方法，通過改變ImageView的屬性，以使搖籃建設項目如下：

<ImageView 
    android:id="@+id/movie_poster" 
    android:layout_width="@dimen/dim_160dp" 
    android:layout_height="@dimen/dim_240dp" 
    android:src="@mipmap/movie_placeholder_img" 
    app:imageUrl="@{singleMovie.getImageUrl()}" /> 

Answer 2

試試這個方法...

@BindingAdapter("imageUrl") 
public static void getImageUrl(ImageView imageView, String url) { 
    Timber.d("LOAD IMAGE WITH URL %s", url); 
} 


<ImageView 
    android:id="@+id/image" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:src="@mipmap/placeholder_img" 
    tools:imageUrl="@{data.imageUrl}" /> 

Answer 3

我遇到了同樣的問題。 但我發現了一個綁定的解決方案，而不是直接調用getImageUrl。

<ImageView 
    android:id="@+id/image" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:src="@mipmap/placeholder_img" 
    app:imageUrl="@{data.imageUrl}" /> 
@BindingAdapter("bind:imageUrl") 
public static void getImageUrl(ImageView imageView, Object url) { 
    Timber.d("LOAD IMAGE WITH URL %s", (String) url); 
} 

使用Object而不是String。然後它會工作。也許這是綁定或千斤頂的錯誤。

Answer 4

我認爲你正在嘗試使用Java 8功能和Data Binding在一起。當您添加

compileOptions { 
     sourceCompatibility JavaVersion.VERSION_1_8 
     targetCompatibility JavaVersion.VERSION_1_8 
    } 

和Jack Compiler

jackOptions { 
      enabled true 
     } 

到您的項目你得到這個錯誤與自定義屬性。

谷歌表示：

The Jack toolchain is deprecated, as per this announcement. If your project depends on Jack, you can keep using it. However, it may be removed completely in a future preview release of Android Studio 2.4. So we recommend disabling Jack and using Java 8 support built into Android Studio’s default toolchain.

這裏的正式文件： https://developer.android.com/studio/preview/features/java8-support.html

如果你只是使用它的RetroLambda你可以像下面遷移它不啓用Jack。

buildscript { 
    ... 
    dependencies { 
     // Remove the following dependency. 
     classpath 'me.tatarka:gradle-retrolambda:<version_number>' 
    } 
} 

以及應用中的gradle產出：

apply plugin: 'me.tatarka.retrolambda' 

而對於第二種方式; -as 瀨 mentioned-你可以改變你Binding Adapter如下面的代碼：

@BindingAdapter("imageUrl") 
public static void getImageUrl(ImageView imageView, Object url) { 
    Timber.d("LOAD IMAGE WITH URL %s", (String)url); 
} 

這也將會爲你工作。祝你好運。