小编daz*_*000的帖子

如下面的屏幕截图所示,使用a TextInputLayout换行时似乎会自动添加左边距EditText.

EditText在布局XML中没有添加填充,但是当渲染视图时,似乎在左边有填充EditText.比较TextView下面的时候你可以看到这个TextInputLayout.

如何禁用此左侧填充？

谢谢!

在构建项目时，我们不断在 CircleCI 上遇到以下异常。从 CircleCI CLI 运行作业时，一切运行良好。有没有人为此找到修复/解决方案？

Compilation with Kotlin compile daemon was not successful
java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: 
    java.io.EOFException
    at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:236)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:161)
    at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227)
    at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179)
    at com.sun.proxy.$Proxy104.compile(Unknown Source)
    at org.jetbrains.kotlin.compilerRunner.GradleKotlinCompilerWork.incrementalCompilationWithDaemon(GradleKotlinCompilerWork.kt:284)
    at org.jetbrains.kotlin.compilerRunner.GradleKotlinCompilerWork.compileWithDaemon(GradleKotlinCompilerWork.kt:198)
    at org.jetbrains.kotlin.compilerRunner.GradleKotlinCompilerWork.compileWithDaemonOrFallbackImpl(GradleKotlinCompilerWork.kt:141)
    at org.jetbrains.kotlin.compilerRunner.GradleKotlinCompilerWork.run(GradleKotlinCompilerWork.kt:118)
    at org.jetbrains.kotlin.compilerRunner.GradleCompilerRunner.runCompilerAsync(GradleKotlinCompilerRunner.kt:158)
    at org.jetbrains.kotlin.compilerRunner.GradleCompilerRunner.runCompilerAsync(GradleKotlinCompilerRunner.kt:153)
    at org.jetbrains.kotlin.compilerRunner.GradleCompilerRunner.runJvmCompilerAsync(GradleKotlinCompilerRunner.kt:92)
    at org.jetbrains.kotlin.gradle.tasks.KotlinCompile.callCompilerAsync$kotlin_gradle_plugin(Tasks.kt:447)
    at org.jetbrains.kotlin.gradle.tasks.KotlinCompile.callCompilerAsync$kotlin_gradle_plugin(Tasks.kt:355)
    at org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile.executeImpl(Tasks.kt:312)
    at org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile.execute(Tasks.kt:284)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    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:103)
    at org.gradle.api.internal.project.taskfactory.IncrementalTaskInputsTaskAction.doExecute(IncrementalTaskInputsTaskAction.java:46)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
    at org.gradle.api.internal.project.taskfactory.AbstractIncrementalTaskAction.execute(AbstractIncrementalTaskAction.java:25)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:404)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
    at …

flutter_web 文档说 dart:svg 已移植，但是您如何将其与 flutter 资产/小部件系统一起使用？

我有一个布局,用于更新状态栏的背景颜色colorPrimaryDark.

当布局的根布局为a时CoordinatorLayout,这很有用,但当我将其切换到LinearLayout状态栏时,背景不再更新.

布局源和屏幕截图粘贴在下面.还列出了正常工作的布局示例.

谢谢!

layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".churches.ChurchesActivity">

    <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.design.widget.CoordinatorLayout
        android:id="@+id/coordinatorLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        >

        <FrameLayout
            android:id="@+id/contentFrame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
    </android.support.design.widget.CoordinatorLayout>

</LinearLayout>

styles.xml

<resources>

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

<style name="AppTheme.NoActionBar">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
</style>

<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>

<style name="AppTheme.PopupOverlay" …

在Android Studio中开发的Flutter项目的合法.gitignore是什么？

到目前为止，这是我所拥有的，但是当我在Android Studio中打开该项目时，无法启用Dart支持或浏览该项目。

#flutter specific
.flutter-plugins
.DS_Store
.dart_tool/
.packages
.pub/
build/
android/app/google-services.json
.idea/
android/key.properties
pubspec.lock
doc/api/

#ios specific
ios/.generated/
ios/Podfile*
ios/Flutter/Debug.xcconfig
ios/Flutter/Release.xcconfig
ios/Runner.xcworkspace/contents.xcworkspacedata

#android specific
android/app/google-services.json
android/key.properties

# User-specific
.idea/**/workspace.xml
.idea/**/tasks.xml
.idea/**/usage.statistics.xml
.idea/**/dictionaries
.idea/**/shelf

# Generated files
.idea/**/contentModel.xml

# Sensitive or high-churn files
.idea/**/dataSources/
.idea/**/dataSources.ids
.idea/**/dataSources.local.xml
.idea/**/sqlDataSources.xml
.idea/**/dynamic.xml
.idea/**/uiDesigner.xml
.idea/**/dbnavigator.xml

# Gradle
.idea/**/gradle.xml
.idea/**/libraries

# Gradle and Maven with auto-import
.idea/modules.xml
.idea/*.iml
.idea/modules
*.iml

# File-based project format
*.iws

# IntelliJ
out/

我在我的 Flutter Web 应用程序上使用 Firebase 身份验证，但会话在刷新期间没有保留。

这是我正在使用的包。

https://pub.dev/packages/firebase

这就是我使用 Firebase 进行身份验证的方式

  static Future<User> handleSignInEmail(String email, String password) async {
    await init();

    final UserCredential userCredential =
        await auth().signInWithEmailAndPassword(email.trim(), password);

    assert(userCredential.user != null);
    assert(await userCredential.user.getIdToken() != null);

    final User currentUser = await userCredential.user;
    assert(userCredential.user.uid == currentUser.uid);

    print('signInEmail succeeded: $userCredential.user');

    return userCredential.user;
  }

如果我刷新页面并调用以下方法，则返回的用户为空：

  static Future<User> getFirebaseUser() async {
    await init();
    return await auth().currentUser;
  }

使用 Flutter Mobile 的类似实现按预期工作。我在 Flutter Web 实现中遗漏了什么？

我正在开发 flutter web 应用程序并尝试从互联网上获取一些数据我正在使用 package:http/http.dart 并尝试这样做：

await http.get(url);

但我收到了这个错误：

不支持的操作：Platform._version

daz@daz:/rom/source/public/checkout_example$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel master, v1.16.2-pre.41, on Linux, locale en_US.UTF-8)

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses
[?] Chrome - develop for the web
[?] Linux toolchain - develop for Linux desktop
[?] Android Studio (version 3.6)
[!] IntelliJ IDEA …

我有一个使用非常简单的自定义布局的DatePickerFragment.布局占用较小设备(HTC One m7)上的整个警报对话框,但不在Nexus 6上.有人知道为什么DatePicker不占用Nexus 6警报对话框的整个宽度或从哪里开始排除故障？谢谢!

Nexus 6(注意日期标题不会填满整个警报对话框)

HTC One m7

dialog_date.xml

<?xml version="1.0" encoding="utf-8"?>
<DatePicker xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/dialog_date_date_picker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:calendarViewShown="false">
</DatePicker>

DatePickerFragment的onCreateDialog()

public Dialog onCreateDialog(Bundle savedInstanceState) {
        Date date = (Date) getArguments().getSerializable(ARG_DATE);

        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        int year = calendar.get(Calendar.YEAR);
        int month = calendar.get(Calendar.MONTH);
        int day = calendar.get(Calendar.DAY_OF_MONTH);

        View v = LayoutInflater.from(getActivity())
                 .inflate(R.layout.dialog_date, null);

        mDatePicker = (DatePicker)
  v.findViewById(R.id.dialog_date_date_picker);
        mDatePicker.init(year, month, day, null);

        return new AlertDialog.Builder(getActivity())
                 .setView(v)
//                     .setTitle(R.string.date_picker_title)
                 .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int …

我使用Image.network为列表中的每个项目加载图像,使用以下代码:

Image getEventImageWidget(AustinFeedsMeEvent event) {
return event.photoUrl.isNotEmpty ?
          Image.network(
            event.photoUrl,
            width: 77.0,
            height: 77.0,
          ) : Image.asset(
            'assets/ic_logo.png',
            width: 77.0,
            height: 77.0,
          );
}

当我向上和向下滚动时,列表有时会在加载图像时挂起.有没有办法在背景线程上加载图像？我该怎么做才能帮助修复滚动性能？

我正在创建一个读卡器集成，该集成使用 Android 服务作为集成的一部分。标准 Android 实现包括 android 服务定义AndroidManifest.xml

    <service
        android:name="com.anywherecommerce.android.sdk.services.CardReaderConnectionService"
        android:stopWithTask="false" />

https://github.com/dazza5000/any-pay-android-sample/blob/4f7ca7af79f2494e3ec408b025446be6020c0aa4/src/main/AndroidManifest.xml#L43-L45

如何在 Flutter 插件中定义它，以便将服务定义添加到使用它的应用程序的 AndroidManifest 中？我是否只需将其作为库的一部分包含在内，然后由用户在其应用程序中注册该服务AndroidManifest.xml？