当试图获取可绘制的图像时，android.content.res.Resources$NotFoundException
当试图获取可绘制的图像时，android.content.res.Resources$NotFoundException
提问于 2015-09-12 10:47:36
我搜索了网站，特别是这个网站，但我还没有找到我的问题的答案。
我的目标是:我有一个包含一些元素的ListView，一个是ImageButton。我想根据存储在本地SQLite数据库中的数据动态地设置这个按钮的图像。
下面是代码片段：
在数据库中保存可绘制图像：
e.setBild(R.drawable.goal_icon);如您所见，我将其保存为整数。据我所知，这是一条路。
使用图像的：
我认为更重要的是，我如何努力获得可绘制的形象。这是我用来填充ListView的适配器的一部分：
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater mInflater = (LayoutInflater)
getContext().getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.list_item_actions, null);
}
ImageButton icon = (ImageButton) convertView.findViewById(R.id.icon);
try{
icon.setImageResource(getItem(position).getBild());
}catch(Exception e){
icon.setImageResource(R.drawable.default_icon);
}'getBild‘方法获得一个整数(很明显)。
他总是去接，把default_icon给了我。下面是Stacktrace：
09-12 12:22:19.636 23635-23635/android.ht.sportstatistik W/ResourceType﹕ No package identifier when getting value for resource number 0x00000002
09-12 12:22:19.637 23635-23635/android.ht.sportstatistik W/ImageView﹕ Unable to find resource: 2
android.content.res.Resources$NotFoundException: Resource ID #0x2
at android.content.res.Resources.getValue(Resources.java:1307)
at android.content.res.Resources.getDrawable(Resources.java:826)
at android.content.Context.getDrawable(Context.java:403)
at android.widget.ImageView.resolveUri(ImageView.java:747)
at android.widget.ImageView.onMeasure(ImageView.java:874)
at android.view.View.measure(View.java:17637)
at android.widget.RelativeLayout.measureChild(RelativeLayout.java:698)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:482)
at android.view.View.measure(View.java:17637)
at android.widget.ListView.measureScrapChild(ListView.java:1207)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1272)
at android.widget.ListView.onMeasure(ListView.java:1182)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
at android.view.View.measure(View.java:17637)
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:851)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
at android.view.View.measure(View.java:17637)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5536)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:436)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2618)
at android.view.View.measure(View.java:17637)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2019)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1177)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1383)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1065)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5901)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
at android.view.Choreographer.doCallbacks(Choreographer.java:580)
at android.view.Choreographer.doFrame(Choreographer.java:550)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:211)
at android.app.ActivityThread.main(ActivityThread.java:5373)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.in我是不是遗漏了什么？提前感谢！
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-09-12 12:01:11
根据Android开发人员指定的这里文档
setImageresource()中的整数值必须是来自R.java文件的资源id。
看看您的代码和问题，似乎您正在方法的id参数中传递自己的值。
我知道您在方法中设置了适当的值，但是不知怎么的，它被存储为其他的东西，并且作为图像资源得到的是"2“。现在，当您打开R.java文件时，您可能找不到与此值相对应的任何条目。
更好的方法是复制sdcard中的文件，然后获取位图，然后使用setImageBitmap()方法将其显示为图像视图。
希望这能帮助你发现问题。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/32537921
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