我想在模拟器上运行谷歌地图v2,我正在按照本教程.当我试图在模拟器上安装所需的apk文件时,我收到以下错误.
我尝试使用本教程解决这个问题.遵循所有步骤,将paltform-tools的路径添加到环境路径.此外,在修改PATH变量后,启动了一个新的CommandPrompt窗口.
但得到同样的错误.我需要在模拟器上检查我的谷歌地图应用程序.请建议我.
'adb' is not recognized as an internal or external command,
operable program or batch file.
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我正在尝试使用如下背景创建一个底栏:

我目前正在使用以下代码:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient android:endColor="#000000" android:startColor="#696969"
android:centerColor="#696969" android:angle="270" />
<stroke android:color="#696969" />
<padding android:left="2dp" android:top="3dp" android:right="2dp"
android:bottom="3dp" />
</shape>
</item>
</selector>
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但输出看起来像这样......:

如何获得这个,两个彩色背景?请建议..谢谢
这是我的AutoCompleteTextView的代码:
String[] countries = getResources().getStringArray(R.array.countries_array);
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.item_list ,countries);
textView = (AutoCompleteTextView) dialog.findViewById(R.id.autoCompleteTextView1);
adapter.setNotifyOnChange(true);
textView.setAdapter(adapter);
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这是item_list:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:textSize="16sp"
android:textColor="#000"
android:drawableRight="@drawable/arrow">
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这是输出:

我想更改这个弹出式的建议框,并希望在AutoCompleteTextView中显示下面的建议列表..与此类似:(请忽略苹果设计,它只是结果出现的位置)
我怎么能这样做..请建议.谢谢.!!
我保存了以下XML文件:
<E:Events xmlns:E="Event-Details">
<Date>12/27/2012</Date>
<Time>?11:12 PM</Time>
<Message>Happy Birthday</Message>
</E:Events>
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我XElement用来加载上面的XML文件.我希望获得元素值Date, Time and Message即12/27/2012,晚上11:12和Happy Birthday.我该如何检索这些值.我在这方面搜索了很多,却找不到任何东西.
任何帮助赞赏...
如何正确初始化和处理相机控制器。我在用 camera: ^0.9.4+5
与许多人一起
\n\n\n\n
我在单击切换相机按钮时收到此错误:
\n======== Exception caught by widgets library =======================================================\nThe following CameraException was thrown building ValueListenableBuilder<CameraValue>(dirty, state: _ValueListenableBuilderState<CameraValue>#47f17):\nCameraException(Disposed CameraController, buildPreview() was called on a disposed CameraController.)\nRun Code Online (Sandbox Code Playgroud)\n这是完整的代码:
\nclass VideoRecorderScreen extends StatefulWidget {\n @override\n _VideoRecorderScreenState createState() {\n return _VideoRecorderScreenState();\n }\n\n //final ApplicantData applicantData;\n final String videorec;\n \n\n VideoRecorderScreen(this.applicationId, this.name, this.description,\n this.descriptionHindi, this.videorec,\n {this.isOpenSubsDashboard = false});\n}\n\nclass _VideoRecorderScreenState extends State<VideoRecorderScreen> {\n CameraController controller;\n XFile videoPath;\n List<CameraDescription> cameras;\n int selectedCameraIdx = 1;\n int …Run Code Online (Sandbox Code Playgroud) 我想在我的EditText中实现剪切,复制,粘贴功能,我尝试使用以下代码:
ClipMan = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
editbox1.setText(ClipMan.getText());
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用于粘贴文本,但它将整个文本粘贴到另一个Editbox中.我想复制所选文本并将该文本粘贴到同一个Editbox中,就像普通的记事本一样.
任何建议都非常感谢...谢谢!
我的小部件包含两个相对布局.我已经使两个布局都可以点击了.以下是布局的ID:
android:id="@+id/upper_layout"
android:id="@+id/bottom_layout"
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现在,我需要的是,如果用户点击upper_layout,则bottom_layout应该是不可见的.
在这里,我到目前为止尝试过,但它不起作用.你能检查一下我做错了什么吗?或者,也许建议一些其他方法来实现这一目标.
代码:
public class BobsWidget extends AppWidgetProvider {
public static String ACTION_WIDGET_RECEIVER = "Clicked";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.main);
Intent active = new Intent(context, BobsWidget.class);
active.setAction(ACTION_WIDGET_RECEIVER);
PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context,
0, active, 0);
remoteViews.setOnClickPendingIntent(R.id.upper_layout,
actionPendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds, remoteViews);
}
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
// check, if our Action was called
if (intent.getAction().equals(ACTION_WIDGET_RECEIVER)) {
RemoteViews remoteViews = new …Run Code Online (Sandbox Code Playgroud) 我知道此问题经常被问过,但我无法从任何答案或搜索结果中获得解决方案.我必须尽快解决这个问题..我试图从用户输入的地址获得纬度和经度,但我继续得到:
java.io.IOException: Unable to parse response from server
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我正在使用此代码:
Geocoder geocoder = new Geocoder(this ,Locale.getDefault());
String newAddress = (String)saveas.getText().toString();
List<Address> addresses = geocoder.getFromLocationName(newAddress, 1);
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我尝试了很多不同的方法,但没有任何作用...默认的地图应用程序运行良好,当用户输入地址时,它成功地显示地图中的地址..我怎么能这样做..?
我添加了所有必需的权限,我在真实设备上测试它(版本2.3)...
我最近开始使用 flutter,在我的项目中我必须用计时器录制视频。当我单击停止按钮停止视频录制时,出现此错误。我尝试显示路径并得到了路径
I/flutter (19037): Video recorded to /data/user/0/app.package/cache/REC8929992591965700575.mp4
I/flutter (19037): Error: INVALID_PATH
I/flutter (19037): Error Message: The platform "TargetPlatform.android" did not return a path while reporting success. The platform should always return a valid path or report an error.
I/flutter (21723): Video recorded to /data/user/0/app.package/cache/REC4634449859696013797.mp4
E/flutter (21723): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: CameraException(INVALID_PATH, The platform "TargetPlatform.android" did not return a path while reporting success. The platform should always return a valid path or report an error.)
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使用这个插件:
camera: ^0.9.4+5
video_player: ^2.2.10
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我的代码: …
我最近在 Play 商店的 Myapp 上发布了更新(版本 xx(xxx))。我收到一条错误消息(无法安装 Myapp),请检查随附的屏幕截图。但是,当用户尝试更新应用程序时,初始安装(如果用户卸载现有应用程序并再次安装该应用程序)运行正常。在我的应用程序中,我编写了一个程序,当 Play 商店中有更高版本可用时通知用户。此功能将用户重定向到应用程序商店以安装更新。工作正常。在该版本发布之前,用户可以安装更新。我已经尝试过建议的选项,例如清除游戏商店的缓存并允许更新所有网络上的应用程序等。寻求您的指导来解决此问题。
我的 pubspec.yaml
name: xxx
description: A new Flutter application.
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used …Run Code Online (Sandbox Code Playgroud) android ×9
flutter ×3
camera ×2
video ×2
adb ×1
autocomplete ×1
batch-file ×1
c# ×1
clipboard ×1
dart ×1
google-maps ×1
google-play ×1
updates ×1
xelement ×1
xml ×1