以编程方式从支持库创建GridLayout

Question

在android中,是否可以完全以编程方式从支持库创建GridLayout(即不编写相应的xml)？

我在一个片段(称为PromotionLayoutFragment)中创建我的GridLayout,如下所示:

ViewGroup fragmentView = (ViewGroup)getView(); 
GridLayout gridLayout = new GridLayout(fragmentView.getContext());
gridLayout.setColumnCount(2);
gridLayout.setRowCount(15);
// add views to grid ...
fragmentView.addView(gridLayout);

这在我使用API​​级别14中的GridLayout类时工作正常,但是当我使用支持库(v7-r9)中的GridLayout时,我得到:

08-10 15:54:52.209: ERROR/AndroidRuntime(14687): FATAL EXCEPTION: main
    java.lang.NoClassDefFoundError: android.support.v7.gridlayout.R$dimen
    at android.support.v7.widget.GridLayout.<init>(GridLayout.java:255)
    at android.support.v7.widget.GridLayout.<init>(GridLayout.java:274)
    at android.support.v7.widget.GridLayout.<init>(GridLayout.java:282)
    at net.link.redbutton.fragment.PromotionLayoutFragment.showPromotions(PromotionLayoutFragment.java:168)
    at net.link.redbutton.fragment.PromotionLayoutFragment.onImageResult(PromotionLayoutFragment.java:222)
    at net.link.redbutton.fragment.SchedulerResponseFragment$1.onReceiveResult(SchedulerResponseFragment.java:37)
    at android.os.ResultReceiver$MyRunnable.run(ResultReceiver.java:43)
    at android.os.Handler.handleCallback(Handler.java:605)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4441)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
    at dalvik.system.NativeStart.main(Native Method)

Answer 1

事实证明，您需要将 GridLayout 支持库包含为 Android 库项目 (apklib)，而不是 jar。我正在使用 maven Android SDK 部署程序，但目前存在一个与此相关的问题。