Question

当我第一次构建应用程序时，Java编译器无法显示以下错误：

错误：找不到符号类MyGenericDialogFragment
错误：包MyGenericDialogFragment不存在
错误：方法没有覆盖或实现超类型的方法

但是第二次一切正常。

我正在做的是在Activity中使用DialogFragment

我创建一个抽象类，声明一个接口，并将通过特定的DialogFragment进行扩展：

public abstract class MyGenericDialogFragment extends DialogFragment {

    protected OnCompleteListener mListener;

    public static interface OnCompleteListener {
        public abstract void onComplete(String time);
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        try {
            this.mListener = (OnCompleteListener)context;
        }
        catch (final ClassCastException e) {}
    }

    public OnCompleteListener getmListener() {
        return mListener;
    }
}

创建DialogFragment的Activity实现了抽象类内部声明的接口：

public class MainActivity extends AppCompatActivity implements MyGenericDialogFragment.OnCompleteListener{
    ...
    // Create Dialog that extends MyGenericDialogFragment
    MySpecificDialog dial = new MyDialog();
    dial.show(getSupportFragmentManager(),"tag");
    ...
    ...
    @Override
    public void onComplete(String text) {
        //do something whit text
    }

有什么建议吗？

编辑：这是堆栈跟踪

org.gradle.api.internal.tasks.compile.CompilationFailedException：编译失败；有关详细信息，请参见编译器错误输出。在org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute（JdkJavaCompiler.java:52）在org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute（JdkJavaCompiler.java:37）在org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.delegateAndHandleErrors（NormalizingJavaCompiler.java:98）在org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute（NormalizingJavaCompiler.java:51）在org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute（NormalizingJavaCompiler.java:37）在org.gradle.api.internal.tasks.compile.incremental.SelectiveCompiler.execute（SelectiveCompiler.java:73）在org.gradle.api.internal.tasks.compile.incremental.SelectiveCompiler.execute（SelectiveCompiler.java:34）在org.gradle.api.internal.tasks.compile.incremental.IncrementalResultStoringDecorator.execute（IncrementalResultStoringDecorator.java:41）在org.gradle.api.internal.tasks.compile.incremental.IncrementalResultStoringDecorator.execute（IncrementalResultStoringDecorator.java:27）在org.gradle.api.internal.tasks.compile.incremental.IncrementalAnnotationProcessingCompiler.execute（IncrementalAnnotationProcessingCompiler.java:50）在org.gradle.api.internal.tasks.compile.incremental.IncrementalAnnotationProcessingCompiler.execute（IncrementalAnnotationProcessingCompiler.java:36）在org.gradle.api.tasks.compile.JavaCompile.performCompilation（JavaCompile.java:156）在org.gradle.api.tasks.compile.JavaCompile.compile（JavaCompile.java:126）在com.android.build.gradle.tasks.factory.AndroidJavaCompile.compile（AndroidJavaCompile.java:92）在sun.reflect.GeneratedMethodAccessor581.invoke（未知来源）在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）在java.lang.reflect.Method.invoke（Method.java:498）在org.gradle.internal.reflect.JavaMethod.invoke（JavaMethod.java:73）在org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute（IncrementalTaskAction.java:50）在org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute（StandardTaskAction.java:39）在org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute（StandardTaskAction.java:26）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter $ 1.run（ExecuteActionsTaskExecuter.java:124）在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:336）处在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:328）在org.gradle.internal.progress.DefaultBuildOperationExecutor.execute（DefaultBuildOperationExecutor.java:199）在org.gradle.internal.progress.DefaultBuildOperationExecutor.run（DefaultBuildOperationExecutor.java:110）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction（ExecuteActionsTaskExecuter.java:113）处在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions（ExecuteActionsTaskExecuter.java:95）在org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute（ExecuteActionsTaskExecuter.java:73）在org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute（OutputDirectoryCreatingTaskExecuter.java:51）处在org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute（SkipUpToDateTaskExecuter.java:59）在org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute（ResolveTaskOutputCachingStateExecuter.java:54）在org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute（ValidatingTaskExecuter.java:59）在org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute（SkipEmptySourceFilesTaskExecuter.java:101）处在org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute（FinalizeInputFilePropertiesTaskExecuter.java:44）在org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute（CleanupStaleOutputsExecuter.java:91）在org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute（ResolveTaskArtifactStateTaskExecuter.java:62）处在org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute（SkipTaskWithNoActionsExecuter.java:59）在org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute（SkipOnlyIfTaskExecuter.java:54）在org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute（ExecuteAtMostOnceTaskExecuter.java:43）在org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute（CatchExceptionTaskExecuter.java:34）在org.gradle.execution.taskgraph.DefaultTaskGraphExecuter $ EventFiringTaskWorker $ 1.run（DefaultTaskGraphExecuter.java:256）在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:336）处在org.gradle.internal.progress.DefaultBuildOperationExecutor $ RunnableBuildOperationWorker.execute（DefaultBuildOperationExecutor.java:328）在org.gradle.internal.progress.DefaultBuildOperationExecutor.execute（DefaultBuildOperationExecutor.java:199）在org.gradle.internal.progress.DefaultBuildOperationExecutor.run（DefaultBuildOperationExecutor.java:110）在org.gradle.execution.taskgraph.DefaultTaskGraphExecuter $ EventFiringTaskWorker.execute（DefaultTaskGraphExecuter.java:249）处在org.gradle.execution.taskgraph.DefaultTaskGraphExecuter $ EventFiringTaskWorker.execute（DefaultTaskGraphExecuter.java:238）处在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker.processTask（DefaultTaskPlanExecutor.java:123）处在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker.access $ 200（DefaultTaskPlanExecutor.java:79）在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker $ 1.execute（DefaultTaskPlanExecutor.java:104）在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker $ 1.execute（DefaultTaskPlanExecutor.java:98）在org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute（DefaultTaskExecutionPlan.java:663）处在org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask（DefaultTaskExecutionPlan.java:597）在org.gradle.execution.taskgraph.DefaultTaskPlanExecutor $ TaskExecutorWorker.run（DefaultTaskPlanExecutor.java:98）在org.gradle.internal.concurrent.ExecutorPolicy $ CatchAndRecordFailures.onExecute（ExecutorPolicy.java:63）在org.gradle.internal.concurrent.ManagedExecutorImpl $ 1.run（ManagedExecutorImpl.java:46）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:617）在org.gradle.internal.concurrent.ThreadFactoryImpl $ ManagedThreadRunnable.run（ThreadFactoryImpl.java:55）在java.lang.Thread.run（Thread.java:745）

Android App第一次运行失败，第二次运行

0 个答案: