是qazxsw POI库在Visual Studio的NuGet包管理器可用?
我的应用程序的目标是Android的p之间,这样我可以使用Android Studio中的androidx库,但在我的NuGet无法找到他们。
随着Android的工作室,我可以使用:
androidx
但投在Visual Studio例外:
<androidx.constraintlayout.widget.ConstraintLayout
那么,有没有使用与Xamarin.Android的02-09 21:31:59.970 I/MonoDroid( 8843): UNHANDLED EXCEPTION:
02-09 21:32:00.137 I/MonoDroid( 8843): Android.Views.InflateException: Binary XML file line #1: Binary XML file line #1: Error inflating class androidx.constraintlayout.widget.ConstraintLayout ---> Android.Views.InflateException: Binary XML file line #1: Error inflating class androidx.constraintlayout.widget.ConstraintLayout ---> Java.Lang.ClassNotFoundException: Didn't find class "androidx.constraintlayout.widget.ConstraintLayout" on path: DexPathList[[zip file "/data/app/Keystore.Keystore-aaHeQkjsNRoUnkfPmnf7Tw==/base.apk"],nativeLibraryDirectories=[/data/app/Keystore.Keystore-aaHeQkjsNRoUnkfPmnf7Tw==/lib/x86, /data/app/Keystore.Keystore-aaHeQkjsNRoUnkfPmnf7Tw==/base.apk!/lib/x86, /system/lib]]
02-09 21:32:00.137 I/MonoDroid( 8843): --- End of inner exception stack trace ---
02-09 21:32:00.137 I/MonoDroid( 8843): --- End of inner exception stack trace ---
02-09 21:32:00.137 I/MonoDroid( 8843): at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x00089] in <8acc8089c2ed40d08469fbaa6710a44c>:0
02-09 21:32:00.137 I/MonoDroid( 8843): at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x0005d] in <8acc8089c2ed40d08469fbaa6710a44c>:0
02-09 21:32:00.137 I/MonoDroid( 8843): at Android.App.Activity.SetContentView (System.Int32 layoutResID) [0x00022] in <957bbfdfda4341e2939c881206c1140a>:0
02-09 21:32:00.137 I/MonoDroid( 8843): at Keystore.MainActivity.OnCreate (Android.OS.Bundle savedInstanceState) [0x00009] in H:\My Projects\Android\Samples\Keystore\MainActivity.cs:19
02-09 21:32:00.137 I/MonoDroid( 8843): at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_savedInstanceState) [0x00011] in <957bbfdfda4341e2939c881206c1140a>:0
02-09 21:32:00.138 I/MonoDroid( 8843): at (wrapper dynamic-method) System.Object.3(intptr,intptr,intptr)
02-09 21:32:00.138 I/MonoDroid( 8843): --- End of managed Android.Views.InflateException stack trace ---
02-09 21:32:00.138 I/MonoDroid( 8843): android.view.InflateException: Binary XML file line #1: Binary XML file line #1: Error inflating class androidx.constraintlayout.widget.ConstraintLayout
02-09 21:32:00.138 I/MonoDroid( 8843): Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class androidx.constraintlayout.widget.ConstraintLayout
02-09 21:32:00.138 I/MonoDroid( 8843): Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.constraintlayout.widget.ConstraintLayout" on path: DexPathList[[zip file "/data/app/Keystore.Keystore-aaHeQkjsNRoUnkfPmnf7Tw==/base.apk"],nativeLibraryDirectories=[/data/app/Keystore.Keystore-aaHeQkjsNRoUnkfPmnf7Tw==/lib/x86, /data/app/Keystore.Keystore-aaHeQkjsNRoUnkfPmnf7Tw==/base.apk!/lib/x86, /system/lib]]
02-09 21:32:00.138 I/MonoDroid( 8843): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
02-09 21:32:00.138 I/MonoDroid( 8843): at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
02-09 21:32:00.138 I/MonoDroid( 8843): at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.view.LayoutInflater.createView(LayoutInflater.java:606)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
02-09 21:32:00.138 I/MonoDroid( 8843): at md561c0eefc2ba1e38323457d81b00d3caf.MainActivity.n_onCreate(Native Method)
02-09 21:32:00.138 I/MonoDroid( 8843): at md561c0eefc2ba1e38323457d81b00d3caf.MainActivity.onCreate(MainActivity.java:31)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.app.Activity.performCreate(Activity.java:7136)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.app.Activity.performCreate(Activity.java:7127)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
02-09 21:32:00.138 I/MonoDroid( 8843): at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
02-09 21:32:00.139 I/MonoDroid( 8843): at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
02-09 21:32:00.139 I/MonoDroid( 8843): at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
02-09 21:32:00.139 I/MonoDroid( 8843): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
02-09 21:32:00.139 I/MonoDroid( 8843): at android.os.Handler.dispatchMessage(Handler.java:106)
02-09 21:32:00.139 I/MonoDroid( 8843): at android.os.Looper.loop(Looper.java:193)
02-09 21:32:00.139 I/MonoDroid( 8843): at android.app.ActivityThread.main(ActivityThread.java:6669)
02-09 21:32:00.139 I/MonoDroid( 8843): at java.lang.reflect.Method.invoke(Native Method)
02-09 21:32:00.139 I/MonoDroid( 8843): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
02-09 21:32:00.139 I/MonoDroid( 8843): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
库的方法吗?
你无法找到它的原因是因为你不能有它的NuGet
我们需要添加androidx
包,支持ConstraintLayout我们Xamarin.Android项目。所以要加这个包右键点击
包>添加软件包。 //苹果电脑
参考文献 - >管理的NuGet软件包//视窗
搜索Xamarin.Android.Support.Constraint.Layout
并接受许可证添加软件包。
并使用XML以下命名空间ConstraintLayout
更新
在我的知识<android.support.constraint.ConstraintLayout>
是Mono.Droid不可用,因此你可能需要将其绑定到一个AAR,然后使用该AAR做出<androidx.constraintlayout.widget.ConstraintLayout
解决这个问题发生的同时使该绑定的问题,然后用它到你的Droid项目作为。 DLL
因此,它终于面世Xamarin Binding
该名单的NuGet https://devblogs.microsoft.com/xamarin/androidx-for-xamarin/