小编Tom*_*hka的帖子

我尝试给我的UITableViewCell类一个自定义的启动器,但我无法弄清楚我做错了什么.

这是我的代码:

init(dataObject: [NSManagedObject]!, objectAttributeValues: [String]!,placeholder: String!, segmentedControl: UISegmentedControl?, cellHeight: CGRect, cellWidth: CGRect) {
    self.dataObject = dataObject
    self.Placeholder.text = placeholder
    self.objectAttributeValues = objectAttributeValues

    if segmentedControl != nil {
        self.segmentedControl = segmentedControl!
        didHaveSegmentedControl = true
    }

}

required init(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

我试着调用super.init(frame:CGRect(...))但是通过实现这个我得到另一个错误:必须调用超类"UITableViewCell"的指定初始化器

我能做什么？非常感谢!

我只是试图根据一个值改变我的行内部drawable的颜色,但是不是一个drawable,适配器改变了所有这些颜色.

这是我的适配器:

public class ReportAdapter extends RecyclerView.Adapter<ReportAdapter.ReportViewHolder> {

    DataBaseHelper dataBase;

    private LayoutInflater inflater;
    List<ChoosedSubject> data = Collections.emptyList();
    Context context;
    OnItemClickListener itemClickListener;

    public ReportAdapter(Context context, List<ChoosedSubject> data, OnItemClickListener itemClickListener) {
        inflater = LayoutInflater.from(context);
        this.data = data;
        this.context = context;
        this.itemClickListener = itemClickListener;
    }

    @Override
    public ReportViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = inflater.inflate(R.layout.report_cell, parent, false);
        ReportViewHolder holder = new ReportViewHolder(view);

        dataBase = new DataBaseHelper(context);

        return holder;
    }

    //Set Data inside RecyclerView
    @Override
    public void onBindViewHolder(ReportViewHolder holder, int position) { …

当我尝试在我的onResume()方法中向我的List添加一些值时,我收到此错误:

    java.lang.RuntimeException: Unable to resume activity {.../...MainActivity}: java.lang.UnsupportedOperationException
        at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3096)
        at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3127)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2482)
        at android.app.ActivityThread.-wrap11(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1345)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5415)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:725)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:615)
 Caused by: java.lang.UnsupportedOperationException
        at java.util.AbstractList.add(AbstractList.java:404)
        at java.util.AbstractList.add(AbstractList.java:425)
        at de.toeducate.tograde.MainActivity.onResume(MainActivity.java:151)
        at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1258)
        at android.app.Activity.performResume(Activity.java:6237) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3085)
            at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3127)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2482)
            at android.app.ActivityThread.-wrap11(ActivityThread.java)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1345)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:148)
            at android.app.ActivityThread.main(ActivityThread.java:5415)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:725)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:615)

这是我写的代码:

List<Integer> marks = Collections.emptyList();

    for (int i = 0; i < dataBase.getDataMark().size(); …

我最近更改了实体内部属性的类型.我在数据库的新模型版本之前创建.但有些东西不能正常工作.如果我运行该项目,应用程序将抛出一个错误:

无法初始化应用程序的已保存数据

并在控制台中写道:

2016-01-04 23:21:16.805 toRep_Management [36979:10809172] CoreData:错误:-addPersistentStoreWithType:XML配置:(null)URL:file:///Users/Tom/Library/Application%20Support/de.toEducate. toRep_Management/CocoaAppCD.storedata选项:{NSInferMappingModelAutomaticallyOption = 1; NSMigratePersistentStoresAutomaticallyOption = 1; } ...返回错误错误Domain = NSCocoaErrorDomain Code = 134140"持久存储迁移失败,缺少映射模型." UserInfo = {sourceModel =()isEditable 1,entities {Notice ="()name Notice,managedObjectClassName toRep_Management.Notice,renamingIdentifier Notice,isAbstract 0,superentity name(null),properties {\n displayEndDate = \"(),name displayEndDate ,isOptional 1,isTransient 0,entity Notice,renamingIdentifier displayEndDate,validation predicates(\n),warnings(\n),versionHashModifier(null)\n userInfo {\n},attributeType 900,attributeValueClassName NSDate,defaultValue(null)\" ; \n displayStartDate = \"(),名称displayStartDate,isOptional 1,isTransient 0,entity Notice,renamingIdentifier displayStartDate,validation predicates(\n),warnings(\n),versionHashModifier(null)\n userInfo {\n}, attributeType 900,attributeValueClassName NSDate,defaultValue(null)\"; \n isOnline = \"(),name isOnline,isOptional 1,isTransient 0,entity Notice,renamingIdentifier isOnline,validation predicates(\n),warnings(\n), versionHashModifier(null)\n userInfo {\n},attributeType 800,att ributeValueClassName NSNumber,defaultValue(null)\"; \n …