2017-02-24 57 views
0

我遇到與下列對象進行數據綁定的問題。我有一個對象類調用ScanInfo看起來像這樣。Android數據綁定:錯誤:未指定資源類型

public class ScanInfo extends BaseObservable implements Parcelable { 
    private BarcodeItem barcodeItem; 
    private ParcelInfo parcelInfo; 
    private int childCount = 0; 
    private boolean showQuantity; 
    private boolean showDeviation; 
    private boolean hasParcel; 
    private boolean hasBarcode; 

    public ScanInfo(BarcodeItem barcodeItem) { 
     this.barcodeItem = barcodeItem; 
    } 

    public ScanInfo(ParcelInfo parcelInfo) { 
     this.parcelInfo = parcelInfo; 
    } 

    public ScanInfo(BarcodeItem barcodeItem, ParcelInfo parcelInfo) { 
     this.barcodeItem = barcodeItem; 
     this.parcelInfo = parcelInfo; 
    } 

    @Bindable 
    public BarcodeItem getBarcodeItem() { 
     return barcodeItem; 
    } 

    public void setBarcodeItem(BarcodeItem barcodeItem) { 
     this.barcodeItem = barcodeItem; 
     notifyPropertyChanged(BR.hasBarcode); 
    } 

    @Bindable 
    public ParcelInfo getParcelInfo() { 
     return parcelInfo; 
    } 

    public void setParcelInfo(ParcelInfo parcelInfo) { 
     this.parcelInfo = parcelInfo; 
     notifyPropertyChanged(BR.hasParcel); 
    } 

    @Bindable 
    public boolean isHasParcel() { 
     return hasParcel; 
    } 

    @Bindable 
    public boolean isHasBarcode() { 
     return hasBarcode; 
    } 

    public void setChildCount(int childCount) { 
     this.childCount = childCount; 
    } 

    public void setShowQuantity(boolean showQuantity) { 
     this.showQuantity = showQuantity; 
    } 

    public void setShowDeviation(boolean showDeviation) { 
     this.showDeviation = showDeviation; 
    } 

    @Bindable 
    public String getBarcodeContent() { 
     return barcodeItem.getContent(); 
    } 
} 

我將它綁定到來自適配器和適配器的列表項getView方法我已經這樣做了。

convertView = _inflater.inflate(R.layout.barcode_list_item, parent, false); 
BarcodeListItemBinding binding = BarcodeListItemBinding.bind(convertView); 
ScanInfo scanInfo = getItem(position); 
BarcodeItem barcodeItem = scanInfo.getBarcodeItem(); 
if (barcodeItem != null) { 
    scanInfo.setChildCount(getChildCount(barcodeItem)); 
    scanInfo.setShowQuantity(barcodeItem.getQuantity() > 1 || (barcodeItem.getQuantity() == 1 && _showParcelQuantityOne)); 
    scanInfo.setShowDeviation(_deviations != null && _deviations.size() > 0 && hasDeviation(barcodeItem)); 
} 
binding.setScanInfo(scanInfo); 
binding.executePendingBindings(); 

和列表項的資源文件看起來像這樣

<?xml version="1.0" encoding="utf-8"?> 
<layout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools"> 

    <data> 

     <import type="android.view.View" /> 

     <import type="xx.xxx.xxx.BarcodeItem" /> 

     <import type="xx.xxx.xxx.ParcelInfo" /> 

     <variable 
      name="scanInfo" 
      type="xx.xxx.xxx.ScanInfo" /> 
    </data> 

    ... 
      <TextView 
       android:id="@+id/textBarcode" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:ellipsize="middle" 
       android:gravity="top" 
       android:singleLine="true" 
       android:textAppearance="?android:textAppearanceMedium" 
       android:visibility="visible" 
       android:text="@{scanInfo.barcodeItem.content}" 
       tools:text="123123123123ABABABABABABABA" /> 
    ... 
</layout> 

但是,當我編譯它總是給出了以下錯誤

F:\ ExProjects ... \事件\ 4.171.1.0 \ res \ layout \ barcode_list_item.xml:57:31-62:AAPT:無資源 指定的e類型(在'text'中,值爲'@ {scanInfo.barcodeItem.content}')。

我想知道我在這裏做錯了什麼。請幫我解決這個問題。

+1

你使用:'dataBinding.enabled = TRUE;在你的build.gradle文件? –

+0

[Gradle:沒有指定資源類型('text',值爲'@ {user.name}')的可能重複。數據綁定不工作](http://stackoverflow.com/questions/37723767/gradle-no-resource-type-specified-at-text-with-value-user-name-databi) – tynn

+0

@GeorgeMount是的,我已經用它在我正在處理的模塊在將其添加到所有其他模塊後,它可以工作。 – Sanath

回答

0

您可以使用方法引用

android:text="@{scanInfo::getBarcodeContent}" 
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