【AS-AndroidX】迁移AndroidX带来的问题
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迁移主原文:https://blog.csdn.net/dandelionela/article/details/102976961 # 【AS-AndroidX】AndroidX的迁移 #
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问题1:使用自动迁移时报错
那么就需要去每一个报错的类里面,参照类对照表,逐一把未替换的support类及自动替换错的类修正成AndroidX的类
需要注意的是,IDE的build日志只输出100个错误,虽然写的是100个,其实后边还有很多。改完这100还有下一个100,加油!
问题2:百度地图SDK
报错:java.lang.UnsatisfiedLinkError: No implementation found for int com.baidu.mapsdkplatform.comjni.tools.JNITools.initClass
2019-11-12 11:55:59.209 23040-23040/? E/libc: Access denied finding property "ro.vendor.df.effect.conflict"2019-11-12 11:55:59.223 23040-23040/? E/NativeLoader: found libBaiduMapSDK_base_v5_4_4.so error2019-11-12 11:55:59.223 23040-23040/? E/.***.****: No implementation found for int com.baidu.mapsdkplatform.comjni.tools.JNITools.initClass(java.lang.Object, int) (tried Java_com_baidu_mapsdkplatform_comjni_tools_JNITools_initClass and Java_com_baidu_mapsdkplatform_comjni_tools_JNITools_initClass__Ljava_lang_Object_2I)2019-11-12 11:55:59.224 23040-23040/? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.*****.***.******, PID: 23040 java.lang.UnsatisfiedLinkError: No implementation found for int com.baidu.mapsdkplatform.comjni.tools.JNITools.initClass(java.lang.Object, int) (tried Java_com_baidu_mapsdkplatform_comjni_tools_JNITools_initClass and Java_com_baidu_mapsdkplatform_comjni_tools_JNITools_initClass__Ljava_lang_Object_2I) at com.baidu.mapsdkplatform.comjni.tools.JNITools.initClass(Native Method) at com.baidu.mapsdkplatform.comjni.tools.a.b(Unknown Source:6) at com.baidu.mapsdkplatform.comapi.a.(Unknown Source:23) at com.baidu.mapsdkplatform.comapi.a.a(Unknown Source:0) at com.baidu.mapsdkplatform.comapi.c.a(Unknown Source:17) at com.baidu.mapapi.SDKInitializer.initialize(Unknown Source:2) at com.dandelionela.metro.elametro.MetroApplication.initializeBaiduMap(MyApplication.java:61) at com.dandelionela.metro.elametro.MetroApplication.onCreate(MyApplication.java:53) at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1183)...
第一步尝试去百度地图官方API文档找些资料,没有找到,所以就先升级了一下百度地图到V6.0.0仍然报错。
于是将jniLibs文件夹下的ndk支持库从单独的【armeabi-v7a】改为单独的【arm64-v8a】发现报错消失。
很奇怪,在升级AndroidX之前同一手机使用armeabi-v7a可以正常使用,升级完AndroidX之后,就不行了。也是奇怪。
问题3:
2019-11-12 13:43:19.118 27256-27256/com.***.*** E/libc: Access denied finding property "ro.vendor.df.effect.conflict"2019-11-12 13:43:19.136 27256-27295/com.***.*** E/Perf: Fail to get file list lib2019-11-12 13:43:19.136 27256-27295/com.***.*** E/Perf: getFolderSize() : Exception_1 = java.lang.NullPointerException: Attempt to get length of null array2019-11-12 13:43:19.137 27256-27295/com.***.*** E/Perf: Fail to get file list ***.***.***.***2019-11-12 13:43:19.137 27256-27295/com.***.*** E/Perf: getFolderSize() : Exception_1 = java.lang.NullPointerException: Attempt to get length of null array2019-11-12 13:43:19.216 27256-27256/? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.***.***, PID: 27256 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.***.***/com.***.***.activity.WelcomeActivity}: android.view.InflateException: Binary XML file line #2 in com.***.***:layout/activity_welcome: Binary XML file line #2 in com.***.***/activity_welcome: Error inflating class androidx.constraintlayout.ConstraintLayout at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3304) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3443) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2040) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:223) at android.app.ActivityThread.main(ActivityThread.java:7520) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950) Caused by: android.view.InflateException: Binary XML file line #2 in com.***.***:layout/activity_welcome: Binary XML file line #2 in com.***.***:layout/activity_welcome: Error inflating class androidx.constraintlayout.ConstraintLayout Caused by: android.view.InflateException: Binary XML file line #2 in com.***.***:layout/activity_welcome: Error inflating class androidx.constraintlayout.ConstraintLayout Caused by: java.lang.ClassNotFoundException: androidx.constraintlayout.ConstraintLayout at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:454) at android.view.LayoutInflater.createView(LayoutInflater.java:819) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1010) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:965) at android.view.LayoutInflater.inflate(LayoutInflater.java:663) at android.view.LayoutInflater.inflate(LayoutInflater.java:538) at android.view.LayoutInflater.inflate(LayoutInflater.java:481) at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:555) at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:161) at com.***.***.activity.WelcomeActivity.onCreate(WelcomeActivity.java:31) at android.app.Activity.performCreate(Activity.java:7894) at android.app.Activity.performCreate(Activity.java:7881)
突然找到了问题的关键所在:
androidx.constraintlayout.ConstraintLayout
这个类路径有误!这是由IDE自动转化为AndroidX的时候自动生成的。显然是错误的。我们只改了Java文件中的导包错误,却忽略了XML文件中的类的错误。
打开看一下源码:
<?xml version="1.0" encoding="utf-8"?>
果然是ConstraintLayout标签的包名不对。按照对照表,把错误的【androidx.constraintlayout.ConstraintLayout】修改为【androidx.constraintlayout.widget.ConstraintLayout】
然后全局检索一下错误的AndroidX替换,改为正确的AndroidX替换。几十处,擦。。。。。
同样的问题还发生在其他IDE导包错误的地方:
Caused by: java.lang.ClassNotFoundException: android.support.design.widget.TabLayoutCaused by: java.lang.ClassNotFoundException: androidx.core.view.ViewPagerCaused by: java.lang.ClassNotFoundException: android.support.v7.widget.RecyclerViewCaused by: java.lang.ClassNotFoundException: android.support.design.widget.FloatingActionButtonCaused by: java.lang.ClassNotFoundException: android.support.v4.widget.SwipeRefreshLayoutCaused by: java.lang.ClassNotFoundException: androidx.core.widget.SwipeRefreshLayoutCaused by: java.lang.ClassNotFoundException: androidx.core.widget.DrawerLayoutCaused by: java.lang.ClassNotFoundException: android.support.design.widget.CoordinatorLayoutCaused by: java.lang.ClassNotFoundException: android.support.design.widget.AppBarLayoutCaused by: java.lang.ClassNotFoundException: android.support.design.widget.NavigationViewCaused by: java.lang.ClassNotFoundException: android.support.constraint.Guideline
XML布局文件中需要修改的常用控件:
Support Library Class | AndroidX Class |
android.support.constraint.ConstraintLayout | androidx.constraintlayout.widget.ConstraintLayout |
android.support.design.widget.FloatingActionButton | com.google.android.material.floatingactionbutton.FloatingActionButton |
android.support.design.widget.AppBarLayout | com.google.android.material.appbar.AppBarLayout |
android.support.v7.widget.RecyclerView | androidx.recyclerview.widget.RecyclerView |
android.support.design.widget.CoordinatorLayout | androidx.coordinatorlayout.widget.CoordinatorLayout |
android.support.v7.widget.Toolbar | androidx.appcompat.widget.Toolbar |
android.support.v4.widget.SwipeRefreshLayout | androidx.swiperefreshlayout.widget.SwipeRefreshLayout |
android.support.design.widget.TabLayout | com.google.android.material.tabs.TabLayout |
android.support.v4.view.ViewPager | androidx.viewpager.widget.ViewPager |
android.support.v4.widget.DrawerLayout | androidx.drawerlayout.widget.DrawerLayout |
android.support.design.widget.NavigationView | com.google.android.material.navigation.NavigationView |
android.support.v7.widget.SwitchCompat | androidx.appcompat.widget.SwitchCompat |
android.support.design.widget.CollapsingToolbarLayout | com.google.android.material.appbar.CollapsingToolbarLayout |
android.support.v7.widget.CardView | androidx.cardview.widget.CardView |
容易被Android Studio 识别错误的控件:
Wrong AndroidX Class by IDE | Correct AndroidX Class |
androidx.constraintlayout.ConstraintLayout | androidx.constraintlayout.widget.ConstraintLayout |
androidx.core.widget.SwipeRefreshLayout | androidx.swiperefreshlayout.widget.SwipeRefreshLayout |
androidx.core.view.ViewPager | androidx.viewpager.widget.ViewPager |
androidx.core.widget.DrawerLayout | androidx.drawerlayout.widget.DrawerLayout |
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