Question

我使用批处理操作制作了一个联系人应用程序，如下所示

final public class BatchOperation {
private final String TAG = "BatchOperation";
private final ContentResolver mResolver;
// List for storing the batch mOperations
private final ArrayList<ContentProviderOperation> mOperations;

public BatchOperation(Context context, ContentResolver resolver) {
    mResolver = resolver;
    mOperations = new ArrayList<ContentProviderOperation>();
}

public int size() {
    return mOperations.size();
}

public void add(ContentProviderOperation cpo) {
    mOperations.add(cpo);
}

public Uri execute() {
    Uri result = null;

    if (mOperations.size() == 0) {
        return result;
    }
    // Apply the mOperations to the content provider
    try {
        ContentProviderResult[] results = mResolver.applyBatch(
                ContactsContract.AUTHORITY, mOperations);
        if ((results != null) && (results.length > 0))
            result = results[0].uri;
    } catch (final OperationApplicationException e1) {
        Log.e(TAG, "storing contact data failed", e1);
    } catch (final RemoteException e2) {
        Log.e(TAG, "storing contact data failed", e2);
    }
    mOperations.clear();
    return result;
}

在调试模式中一切正常但在我以发布模式签署我的应用后，我遇到了这个问题

E/BatchOperation﹕ storing contact data failed
java.lang.ClassCastException: a cannot be cast to android.content.ContentProviderOperation
        at android.content.ContentProviderProxy.applyBatch(ContentProviderNative.java:479)
        at android.content.ContentProviderClient.applyBatch(ContentProviderClient.java:227)
        at android.content.ContentResolver.applyBatch(ContentResolver.java:951)

在这一行

ContentProviderResult[] results = mResolver.applyBatch(ContactsContract.AUTHORITY,
                mOperations);

这是我的proguard文件

-optimizationpasses 5 
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
-dump class_files.txt
-printseeds seeds.txt
-printusage unused.txt
-printmapping mapping.txt
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-allowaccessmodification
-keepattributes *Annotation*
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
-repackageclasses ''


-dontwarn com.actionbarsherlock.**
-dontwarn org.apache.**
-dontwarn com.commonsware.**
-dontwarn freemarker.**
-dontwarn ezvcard.**

-keep class org.apache.** { *; }
-keep class android.support.v4.app.** { *; } 
-keep class com.actionbarsherlock.** { *; }
-keep class ezvcard.** { *; }
-keep class com.fasterxml.jackson.** { *; }

感谢您的阅读，

Answer 1

当这种事情发生时，我总是向我的开发者问一个问题......你在使用Proguard吗？尝试禁用Proguard并编译进入发布模式进行测试。还可以使用

删除优化

-dontoptimize

同时检查您的内容提供商是否保留了类似

的内容

-keep public class * extends android.content.ContentProvider

Answer 2

啊，我发现了Proguard混淆器android.content.ContentProviderOperation;类。只需添加此-keep class android.content.** { *; }一切正常=）

标志后的bug apk

2 个答案: