eclipse开发android中xml布局视图是灰色的

Question

提示的错误是
Exception raised during rendering: Could not resolve resource value: 0x7F02000F.
Exception details are logged in Window > Show View > Error Log

android.content.res.Resources$NotFoundException: Could not resolve resource value: 0x7F02000F.
at android.content.res.BridgeResources.throwException(BridgeResources.java:693)
at android.content.res.BridgeResources.getDrawable(BridgeResources.java:164)
at net.micode.fileexplorer.CategoryBar.getDrawable(CategoryBar.java:149)
at net.micode.fileexplorer.CategoryBar.onDraw(CategoryBar.java:90)
at android.view.View.draw(View.java:14433)
at android.view.View.draw(View.java:14318)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14436)
at android.view.View.draw(View.java:14318)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14316)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14316)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14316)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14316)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14436)
at android.view.View.draw(View.java:14318)
at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
at android.view.View.draw(View.java:14436)

Answer 1

xml里面有没有设置背景色
android:background