使用颤振的地图框

Question

我想用flutter集成mapbox 我正在做的只是在 pubsec.yaml 中安装我的 sdk 并将访问令牌放在 Android Manifest 文件和 Info.plist 中

这是我添加 mapbox_gl 的 pubsec.yaml

dependencies:
  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2
  mapbox_gl: ^0.0.3

我还没有在 dart 文件中添加任何代码，只是尝试运行应用程序，但它给了我错误

/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:16: error: cannot find symbol
import androidx.annotation.NonNull;
                          ^
  symbol:   class NonNull
  location: package androidx.annotation
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:130: error: cannot find symbol
  private static String getAccessToken(@NonNull Context context) {
                                        ^
  symbol:   class NonNull
  location: class MapboxMapController
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:298: error: cannot find symbol
  private void enableLocationComponent(@NonNull Style style) {
                                        ^
  symbol:   class NonNull
  location: class MapboxMapController
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:315: error: cannot find symbol
  private void enableSymbolManager(@NonNull Style style) {
                                    ^
  symbol:   class NonNull
  location: class MapboxMapController
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:326: error: cannot find symbol
  private void enableLineManager(@NonNull Style style) {
                                  ^
  symbol:   class NonNull
  location: class MapboxMapController
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:333: error: cannot find symbol
  private void enableCircleManager(@NonNull Style style) {
                                    ^
  symbol:   class NonNull
  location: class MapboxMapController
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:556: error: cannot find symbol
  public boolean onMapClick(@NonNull LatLng point) {
                             ^
  symbol:   class NonNull
  location: class MapboxMapController
/flutter/.pub-cache/hosted/pub.dartlang.org/mapbox_gl-0.0.3/android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java:286: error: cannot find symbol
    public void onStyleLoaded(@NonNull Style style) {
                               ^
  symbol: class NonNull
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
8 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':mapbox_gl:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

BUILD FAILED in 4s
*******************************************************************************************
The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app.
*******************************************************************************************
Finished with error: Gradle task assembleDebug failed with exit code 1

感谢任何帮助。

Answer 1

这是一个 AndroidX 兼容性问题。

将此添加到您的 android/gradle.properties 并尝试再次构建：

android.enableJetifier=true
android.useAndroidX=true

(Official docs about AndroidX migration on Flutter)