Question

我正在构建一个Android小部件，我尝试为小部件中的每个列表项添加点击功能。它工作，但我只是不知何故不能把意图的额外的东西。当我尝试将我的类Parallel放在那里实现Parcalable接口时，它会因为跟随错误而失败。是否有可能小部件本身无法访问该类？（它位于我的Apps命名空间及其公开内容）

10-01 11:13:50.819  18503-18809/? E/Parcel﹕ Class not found when unmarshalling: cz.cvut.kosapp.model.entities.Parallel
    java.lang.ClassNotFoundException: cz.cvut.kosapp.model.entities.Parallel
    at java.lang.Class.classForName(Native Method)
    at java.lang.Class.forName(Class.java:204)
    at java.lang.Class.forName(Class.java:169)
    at android.os.Parcel.readParcelableCreator(Parcel.java:2091)
    at android.os.Parcel.readParcelable(Parcel.java:2055)
    at android.os.Parcel.readValue(Parcel.java:1971)
    at android.os.Parcel.readMapInternal(Parcel.java:2255)
    at android.os.Bundle.unparcel(Bundle.java:223)
    at android.os.Bundle.putAll(Bundle.java:302)
    at android.content.Intent.fillIn(Intent.java:6352)
    at com.android.server.am.PendingIntentRecord.sendInner(PendingIntentRecord.java:210)
    at com.android.server.am.ActivityManagerService.startActivityIntentSender(ActivityManagerService.java:2603)
    at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:232)
    at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:1737)
    at android.os.Binder.execTransact(Binder.java:388)
    at dalvik.system.NativeStart.run(Native Method)
    Caused by: java.lang.NoClassDefFoundError: cz/cvut/kosapp/model/entities/Parallel
    ... 16 more
    Caused by: java.lang.ClassNotFoundException: Didn't find class "cz.cvut.kosapp.model.entities.Parallel" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
    ... 16 more

Answer 1

对于Parcelable，有时会出现一个奇怪的问题，即它无法在进程之间找到类，也许这里有人可以提醒我原因。在您的Parallel模型对象中，您传递的应该添加一个显式调用getClassLoader()。

所以这样......

protected Parallel(Parcel source) {
        super(source);

        // Explicitly get the class loader of this class as there is sometimes a
        // weird issue
        // when passing Parcel between processes
        Bundle data = source.readBundle(Parallel.class.getClassLoader());
        this.foo = data.getLong("foo");
        this.bar = data.getString("bar");
    }

解组类时未找到类错误

1 个答案: