为什么我会运行'gradle clean build'而不是'gradle build'?根据我的理解,gradle可以检测源更改并在需要时更新最终工件.那为什么我还需要'清洁'?
我的布局文件:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:text="@string/hello_world"
android:layout_width="wrap_content"
app:fontName="Roboto-Regular.ttf"
android:layout_height="wrap_content"/>
</RelativeLayout>
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我的绑定适配器方法:
public class FontBinding {
@BindingAdapter("bind:fontName")
public static void setFontName(TextView view, @NonNull String fontName) {
String fontPath = "/fonts/" + fontName;
Typeface typeface = Typeface.createFromAsset(view.getContext().getAssets(), fontPath);
view.setTypeface(typeface);
}
}
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我得到的错误:
Error:(8) No resource identifier found for attribute 'fontName' in package 'com.example.databindingproject'
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按照https://developer.android.com/tools/data-binding/guide.html中的教程进行操作.我可能做错了什么想法?
自从我尝试运行后更新到XCode 6.2
xcodebuild -project Demo.xcworkspace -scheme Demo clean build test
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我总是得到:
iPhoneSimulator: SimVerifier returned: Error Domain=NSPOSIXErrorDomain Code=53
"Simulator verification failed." UserInfo=0x7f82b9e091a0
{
NSLocalizedFailureReason=A connection to the simulator verification service could
not be established.,
NSLocalizedRecoverySuggestion=Ensure that Xcode.app is installed on a volume with
ownership enabled.,
NSLocalizedDescription=Simulator verification failed.
}
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有没有遇到过这个?
试图在我的项目中使用新的Android数据绑定,但是在尝试将'android:tag'属性设置为某个自定义变量时出现错误.
我的menu_item.xml文件:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable
name="menuItem"
type="com.example.MenuItem" />
</data>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:tag="@{menuItem}"
tools:ignore="UseCompoundDrawables">
<!--suppress AndroidUnknownAttribute -->
<ImageView
android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:imageResource="@{menuItem.itemType.drawableId}" />
<TextView
android:id="@+id/displayName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@{menuItem.itemType.displayNameId}" />
</LinearLayout>
</layout>
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我的MenuItem类:
public class MenuItem {
public final ItemType itemType;
public MenuItem(ItemType itemType) {
this.itemType = itemType;
}
}
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MenyItemBinding.java的一部分:
public MenuItemBinding(View root) {
super(root, 0);
final Object[] bindings = mapBindings(root, 3, sIncludes, sViewsWithIds);
this.displayName = (android.widget.TextView) bindings[2];
this.displayName.setTag(null);
this.icon = (android.widget.ImageView) bindings[1];
this.icon.setTag(null); …
Run Code Online (Sandbox Code Playgroud) 我在混合项目中使用 Realm-Cocoa。有一些令人头疼的问题,但现在我真的陷入困境了。我已经尝试了几件事,但没有任何帮助。这个类编译时没有任何抱怨,但在运行时崩溃:
致命错误:对类“MyApp.Model”使用未实现的初始化程序“init()”
这是课程:
import Foundation
import Realm
import SwiftyJSON
class Model: RLMObject {
dynamic var contactId: String
dynamic var userId: String
dynamic var contactType: String
dynamic var firstName: String
dynamic var lastName: String
dynamic var middleName: String
dynamic var jobTitle:String
dynamic var department: String
dynamic var location: String
dynamic var serviceName: String
dynamic var serviceType : String
dynamic var emails : String
dynamic var addresses :String
dynamic var profilePictureSHA1 : String
dynamic var extNum : String
dynamic var fqExtNum …
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