编辑:由我项目的相关部分组成的 Pastebin:
ColouredItem 也是一个包装器:
public class ColouredItem
{//Only a wrapper class,no behaviour has been defined here
String name,colour;
}
尝试使用以下代码解析字符串中的颜色时,我得到一个 NumberFormatException:
row.setBackgroundColor(Color.parseColor(item.colour));
我使用以下内容从资源创建项目列表:
for(int i=0;i<list.length;i++)
{
item=new ColouredMenuItem();
String[] cmenu =list[i].split("#");
item.name=cmenu[0];
item.colour="#"+cmenu[1];
Log.d(TAG, item.colour);
menuList.add(item);
}
这是我得到的例外......我发现 view.setBackgroundColor 只需要一个整数值:
#ffffff
#ffffBB
#fff45f
#ffff00
Shutting down VM
threadid=1: thread exiting with uncaught exception (group=0x4001d800)
FATAL EXCEPTION: main
java.lang.NumberFormatException: ffffff
at java.lang.Long.parse(Long.java:364)
at java.lang.Long.parseLong(Long.java:354)
at android.graphics.Color.parseColor(Color.java:207)
at com.example.samplelistproject.MadAdapter.getView(MadAdapter.java:60)
at android.widget.AbsListView.obtainView(AbsListView.java:1315)
at android.widget.ListView.makeAndAddView(ListView.java:1727)
at android.widget.ListView.fillDown(ListView.java:652)
at android.widget.ListView.fillFromTop(ListView.java:709)
at android.widget.ListView.layoutChildren(ListView.java:1580)
at android.widget.AbsListView.onLayout(AbsListView.java:1147)
at android.view.View.layout(View.java:7035)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:7035)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1249)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1125)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1042)
at android.view.View.layout(View.java:7035)
at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
at android.view.View.layout(View.java:7035)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1045)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1727)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
添加 # 作为一些答案的建议并没有解决问题:
java.lang.NumberFormatException: Invalid long: "#ffffff"
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
与此实现也没有区别:
String cmenu=list[i];
item.name=cmenu.substring(0, cmenu.indexOf("#"));
item.colour=cmenu.substring(cmenu.indexOf("#"));