3
對不起，如果有人已經問過這個。 我對Stack很新，我沒有找到解決方案。科爾多瓦和proguard：相機插件NPE拍攝
這裏是我縮小它後我的應用程序的使用形式的堆棧。
08-29 13:27:30.330 10037-10192/? E/PluginManager: Uncaught exception from plugin
java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.XmlResourceParser android.content.pm.PackageItemInfo.loadXmlMetaData(android.content.pm.PackageManager, java.lang.String)' on a null object reference
at android.support.v4.content.FileProvider.parsePathStrategy(Unknown Source)
at android.support.v4.content.FileProvider.getPathStrategy(Unknown Source)
at android.support.v4.content.FileProvider.getUriForFile(Unknown Source)
at org.apache.cordova.camera.CameraLauncher.takePicture(Unknown Source)
at org.apache.cordova.camera.CameraLauncher.callTakePicture(Unknown Source)
at org.apache.cordova.camera.CameraLauncher.execute(Unknown Source)
at org.apache.cordova.CordovaPlugin.execute(Unknown Source)
at org.apache.cordova.PluginManager.exec(Unknown Source)
at org.apache.cordova.CordovaBridge.jsExec(Unknown Source)
at org.apache.cordova.engine.SystemExposedJsApi.exec(Unknown Source)
at org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native Method)
at org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:7)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.os.HandlerThread.run(HandlerThread.java:61)
這是我的ProGuard文件：
# ionic
-keep class org.apache.cordova.** { *; }
-keep class org.apache.cordova.camera.** { *; }
-keep public class * extends org.apache.cordova.CordovaPlugin
-keep class com.ionic.keyboard.IonicKeyboard.** { *; }
-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
public static final *** NULL;
}
-keepnames @com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
@com.google.android.gms.common.annotation.KeepName *;
}
-keepnames class * implements android.os.Parcelable {
public static final ** CREATOR;
}
# Not sure if needed, found it in several documentations
-keep class * extends java.util.ListResourceBundle {
protected Object[][] getContents();
}
-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
public static final *** NULL;
}
-keepnames @com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
@com.google.android.gms.common.annotation.KeepName *;
}
-keepnames class * implements android.os.Parcelable {
public static final ** CREATOR;
}
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
#-libraryjars ./libs/android-support-v4.jar
-dontwarn android.support.v4.**
-keep class android.support.v4.** { *; }
-keep interface android.support.v4.** { *; }
-keep public class * extends android.support.v4.**
-keep public class * extends android.app.Fragment
-keep class android.support.v4.content.FileProvider
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-dontwarn com.worklight.common.internal.WLTrusteerInternal*
-dontwarn com.worklight.jsonstore.**
-dontwarn org.codehaus.jackson.map.ext.*
-dontwarn com.worklight.androidgap.push.GCMIntentService
-dontwarn com.worklight.androidgap.plugin.WLInitializationPlugin
-dontwarn android.net.SSLCertificateSocketFactory
-dontwarn android.net.http.*
-keepattributes *Annotation*
如果我使用了「從庫中選擇」項目，一切正常，但每次我嘗試使用相機，我得到這個錯誤。
對於Android清單我有這樣的：
<?xml version='1.0' encoding='utf-8'?>
<manifest android:hardwareAccelerated="true" android:versionCode="24" android:versionName="2.4" package="" xmlns:android="http://schemas.android.com/apk/res/android">
<supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
<uses-permission android:name="android.permission.INTERNET" />
<application android:hardwareAccelerated="true" android:icon="@mipmap/icon" android:label="@string/app_name" android:supportsRtl="true">
<activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale" android:label="@string/activity_name" android:launchMode="singleTop" android:name="MainActivity" android:screenOrientation="portrait" android:theme="@android:style/Theme.DeviceDefault.NoActionBar" android:windowSoftInputMode="adjustResize">
<intent-filter android:label="@string/launcher_name">
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true"
android:name="android.support.v4.content.FileProvider">
<meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/provider_paths" />
</provider>
</application>
<uses-sdk android:minSdkVersion="16" android:targetSdkVersion="22" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
</manifest>
請注意，我從清單刪除的軟件包名稱（這個職位上棧而已，我的體型有名字）
如果我用minifyenabled false刪除了proguard，該應用程序可以並處理相機。
我不知道什麼是收縮，我應該添加以保持？ 或者，也許你有一個提示/提示，發現什麼是我的方法不好？
Thx。
您是否看過我的文章？這些行已被寫入 –
我讀過你的文章，但是我找不到你的proguard文件，我遇到了同樣的錯誤，並且解決方案爲我工作..... @ JolyVincent – MSD
好的，非常感謝，那是的確如此。令我驚訝的是，這部分代碼被鏈接到相機插件，但這就是它！ –