在android中找不到android.support.v4.content.FileProvider类
在android中找不到android.support.v4.content.FileProvider类
提问于 2017-12-19 13:31:31
我在我的应用程序中使用FileProvider。与往常一样，我在<Provider>文件中声明了AndroidManifest.xml标记，如下所示。
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.jk.android.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_paths" />
</provider>当我在有lollipop版本的安卓设备上运行它时，它工作得很好。当我在kitkat版本上试用它时，它会显示以下错误：
FATAL EXCEPTION: main
Process: com.jk.android.perfectphotoeditor2018, PID: 24992
java.lang.RuntimeException: Unable to get provider android.support.v4.content.FileProvider: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[zip file "/data/app/com.jk.android.perfectphotoeditor2018-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.jk.android.perfectphotoeditor2018-2, /system/lib]]
at android.app.ActivityThread.installProvider(ActivityThread.java:5071)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4648)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4588)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1290)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:932)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:748)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[zip file "/data/app/com.jk.android.perfectphotoeditor2018-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.jk.android.perfectphotoeditor2018-2, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.app.ActivityThread.installProvider(ActivityThread.java:5056)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4648)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4588)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1290)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:932)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:748)
at dalvik.system.NativeStart.main(Native Method)我曾经尝试过许多解决方案，比如这，但是它对我不起作用。所以帮我解决这个问题。
build.gradle依赖项：
dependencies {
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
configurations.all {
resolutionStrategy.force 'com.google.code.findbugs:jsr305:1.3.9'
}
testCompile 'junit:junit:4.12'
/* Add the CSDK framework dependencies (Make sure these version numbers are correct) */
// compile 'com.aviary.android.feather.sdk:aviary-sdk:3.6.3'
compile 'com.android.support:appcompat-v7:25.4.0'
compile 'com.adobe.creativesdk.foundation:auth:0.9.1251'
compile 'com.adobe.creativesdk:image:4.8.4'
compile 'com.localytics.android:library:4.0.1'
compile 'com.android.support:design:25.4.0'
compile 'com.android.support:multidex:1.0.2'
compile 'com.android.support:support-v4:25.4.0'
compile 'com.intuit.sdp:sdp-android:1.0.4'
compile 'com.github.bumptech.glide:glide:4.3.1'
compile 'com.google.android.gms:play-services-ads:9.4.0'
implementation 'com.android.support:support-v4:25.4.0'
}回答 9
Stack Overflow用户
发布于 2019-04-07 13:30:53
如果已迁移到AndroidX，则必须将AndroidManifest.xml中的名称更改为androidx.core.content.FileProvider
那是我案子里的坠机。
Stack Overflow用户
发布于 2019-02-11 06:06:23
我也有同样的问题，这些文档解决了我的问题。https://developer.android.com/studio/build/multidexandroid multidex
在Android5.0之前，您必须使用以下方法实现multidex：
android {
defaultConfig {
...
minSdkVersion 15
targetSdkVersion 28
multiDexEnabled true
}
...
}
dependencies {
compile 'com.android.support:multidex:1.0.3'
}然后修改应用程序，选择以下三种方法中的任何一种：
如果您没有实现应用程序：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapp">
<application
android:name="android.support.multidex.MultiDexApplication" >
...
</application>
</manifest>如果您有自定义应用程序，您可以这样修改：
public class MyApplication extends MultiDexApplication { ... }如果您有替换基应用程序，您可以这样修改：
public class MyApplication extends SomeOtherApplication {
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(this);
}
}希望这能解决你的问题。
Stack Overflow用户
发布于 2019-09-03 13:43:30
以下代码适用于我(我已迁移到AndroidX)：
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true"
tools:ignore="WrongManifestParent">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths" />
</provider>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/47888142
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