切换到gradle后android自定义视图属性不起作用
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android custom view attributes not working after switch to gradle
提问by Mars
so I recently migrated to gradle now my custom view attributes return null
所以我最近迁移到 gradle 现在我的自定义视图属性返回 null
my project looks like this
我的项目看起来像这样
--custom_icon_view // library that holds the custom view with custom attributes --my application // this is the main app that actually uses the custom view
--custom_icon_view // 保存具有自定义属性的自定义视图的库 --my 应用程序 // 这是实际使用自定义视图的主应用程序
in my layout I have the namespace defined like this :
在我的布局中，我的命名空间定义如下：
xmlns:iconview="http://schemas.android.com/lib/be.webelite.iconview"
because using apk/res-auto retuns an error saying attibutes could not be identified
因为使用 apk/res-auto 会返回一个错误，提示无法识别属性
this is how I try to get the icon name defined in xml, this used to work perfectlly but now it doesnt. and all I changed was migrating to gradle.
这就是我尝试获取在 xml 中定义的图标名称的方式，这曾经可以完美地工作，但现在不行了。我所做的只是迁移到 gradle。
final TypedArray a = context.obtainStyledAttributes(attrs,be.webelite.iconview.R.styleable.icon);
icon_name = a.getString(be.webelite.iconview.R.styleable.icon_name);
so I'm guessing my gradle.build files are causing a problem?
所以我猜我的 gradle.build 文件引起了问题？
I have the library set to
我将图书馆设置为
apply plugin: 'android-library'
end the main app gradle.build as
结束主应用程序 gradle.build 作为
apply plugin: 'android'
this has been giving me headache for 2 days now :( any help/hints are very apperciated.
这已经让我头痛了 2 天了 :( 任何帮助/提示都非常有用。
here are my gradle files
这是我的 gradle 文件
http://pastie.org/private/h57o8nanydosq0dtm6eiq
http://pastie.org/private/h57o8nanydosq0dtm6eiq
and here is the folder structure
这是文件夹结构
http://pastie.org/private/nvbzomx2zeagdpzt8qqjsq
http://pastie.org/private/nvbzomx2zeagdpzt8qqjsq
this is how I declare my view in the xml
这就是我在 xml 中声明我的视图的方式
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
<!-- tried res-auto didn't work -->
xmlns:iconview="http://schemas.android.com/apk/lib/be.webelite.iconview"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/background_gray">
<be.webelite.iconview.IconView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
iconview:icon_name="entypo_search"
android:textSize="25dp"/>
attrs.xml in IconView>res>values directory
IconView>res>values 目录中的 attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="icon">
<attr name="name" format="string" />
</declare-styleable>
</resources>
回答by Andros
Can't really see what's wrong in your project. Here is how I use custom view & attrs in mine :
无法真正看出您的项目出了什么问题。这是我在我的中使用自定义视图和属性的方法：
In my library project :
在我的图书馆项目中：
attrs.xml :
attrs.xml ：
<declare-styleable name="CustomFontSize">
<attr name="typeFace" format="string" />
</declare-styleable>
in my custom class :
在我的自定义类中：
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CustomFontSize);
if (a == null) {
return;
}
CharSequence s = a.getString(R.styleable.CustomFontSize_typeFace);
if (s != null) {
// do something
}
In my Main Project here an example of one of my layout :
在我的主项目中，这是我的布局之一的示例：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="@dimen/border_margin_pulltorefresh"
android:paddingRight="@dimen/border_margin_pulltorefresh"
android:paddingBottom="@dimen/divider_height">
<com.custom.view.TextViewFont
style="@style/DateStyle"
android:id="@+id/news_date"
android:shadowColor="@color/white"
android:layout_gravity="center_vertical"
android:gravity="center_vertical"
custom:typeFace="@string/font_roboto_condensed_bold"/>
</LinearLayout>
Hope it will help ...
希望它会有所帮助...
Edit :
编辑 ：
in my build.gradle of my "main project"
在我的“主项目”的 build.gradle 中
dependencies {
compile project(":MyLibraryProject")
}
And here the build.gradle of my library :
这里是我图书馆的 build.gradle ：
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.7.+'
}
}
apply plugin: 'android-library'
repositories {
mavenCentral()
}
dependencies {
compile fileTree(dir: 'libs', include: '*.jar')
compile 'com.android.support:support-v4:19.0.0'
compile 'com.actionbarsherlock:actionbarsherlock:4.4.0@aar'
compile project(':WebediaCore:dependencies:DataDroid')
compile project(':WebediaCore:dependencies:ViewPagerIndicator')
compile project(':WebediaCore:dependencies:ActionBar-PullToRefresh')
compile project(':WebediaCore:dependencies:Android-Universal-Image-Loader')
}
android {
compileSdkVersion 19
buildToolsVersion '19'
defaultConfig {
minSdkVersion 8
targetSdkVersion 19
}
}
EDIT1 :
编辑1：
Try to use this namespace :
尝试使用这个命名空间：
xmlns:custom="http://schemas.android.com/apk/res-auto"
and replace :
并替换：
iconview:icon_name="entypo_search"
by :
经过 ：
custom:name="entypo_search"
回答by GeliteNight
I think you should use
我认为你应该使用
iconview:name="entypo_search"
instead of
代替
iconview:icon_name="entypo_search"
回答by alphonzo79
If you are grabbing attributes in your custom view's init method with hard references to that specific namespace then changing to res-auto will break that. Instead, you will need to change those references also to res-auto. Or the preferred method is to just grab the typed interface. For example, in my project this:
如果您在自定义视图的 init 方法中使用对该特定命名空间的硬引用来获取属性，那么更改为 res-auto 将破坏它。相反，您还需要将这些引用更改为 res-auto。或者首选方法是仅获取类型化接口。例如，在我的项目中：
textStyle = attrs.getAttributeIntValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "textStyle", 10);
shadowInner = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "shadowInner", true);
shadowOuter = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "shadowOuter", false);
allowResize = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res/com.bodybuilding.mobile", "allowResize", true);
Became either this:
变成了这样：
textStyle = attrs.getAttributeIntValue("http://schemas.android.com/apk/res-auto", "textStyle", 10);
shadowInner = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res-auto", "shadowInner", true);
shadowOuter = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res-auto", "shadowOuter", false);
allowResize = attrs.getAttributeBooleanValue("http://schemas.android.com/apk/res-auto", "allowResize", true);
but preferably this:
但最好是这样：
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.BBcomButton);
textStyle = a.getInt(R.styleable.BBcomButton_textStyle, 10);
shadowInner = a.getBoolean(R.styleable.BBcomButton_shadowInner, true);
shadowOuter = a.getBoolean(R.styleable.BBcomButton_shadowOuter, false);
shadowInnerColor = a.getColor(R.styleable.BBcomButton_shadowInnerColor, 0xff000000);
shadowOuterColor = a.getColor(R.styleable.BBcomButton_shadowOuterColor, 0xff000000);
allowResize = a.getBoolean(R.styleable.BBcomButton_allowResize, true);
To make it work
让它发挥作用
回答by Jason Rogena
You will get this error when you have statically declared your package name as a namespace (e.g xmlns:iconview="http://schemas.android.com/apk/lib/be.webelite.iconview" in your case)in a layout file and try building the project with Lint on. Check the Android Gradle Lint checks:
当您在布局中将包名静态声明为命名空间（例如 xmlns:iconview="http://schemas.android.com/apk/lib/be.webelite.iconview" 在您的情况下）时，您将收到此错误文件并尝试在打开 Lint 的情况下构建项目。检查Android Gradle Lint 检查：
In Gradle projects, the actual package used in the final APK can vary; for example,you can add a .debug package suffix in one version and not the other. Therefore, you should not hardcode the application package in the resource; instead, use the special namespace http://schemas.android.com/apk/res-autowhich will cause the tools to figure out the right namespace for the resource regardless of the actual package used during the build.
在 Gradle 项目中，最终 APK 中使用的实际包可能会有所不同；例如，您可以在一个版本而不是另一个版本中添加 .debug 包后缀。因此，您不应该对资源中的应用程序包进行硬编码；相反，使用特殊的命名空间http://schemas.android.com/apk/res-auto这将导致工具为资源找出正确的命名空间，而不管构建期间使用的实际包。
回答by JamEngulfer
If anyone is here and nothing appears to be working. From what I can see, having an underscore in your namespace appears to work fine in the editor, but breaks unexpectedly as you build the app.
如果有人在这里并且似乎没有任何工作。据我所知，在您的命名空间中使用下划线似乎在编辑器中工作正常，但在您构建应用程序时意外中断。
