0

我是 android 新手，我正在使用http://code.google.com/p/android-dateslider/组件，我想将它直接添加到我的视图中，而不是在弹出对话框中。

这意味着我将在视图顶部有对话框滑块，通过滑动它会有一些关于下面选定日期的附加信息。

有没有办法做到这一点，或者我仅限于使用对话框形式。（我知道对于 datepicker，我可以使用 xml 声明视图中的位置，但我真的很喜欢使用 datepinner，因为它很棒:)）

编辑：//

我通过以下方式通过xml声明尝试了它：

   <com.googlecode.android.widgets.DateSlider.SliderContainer
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/dateSliderContainer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/button1">

        <com.googlecode.android.widgets.DateSlider.ScrollLayout
            style="@style/Scroller"
            app:childWidth="90dp"
            app:labelerClass="com.googlecode.android.widgets.DateSlider.labeler.MonthYearLabeler"
            app:labelerFormat="%tb %tY" >
        </com.googlecode.android.widgets.DateSlider.ScrollLayout>

        <com.googlecode.android.widgets.DateSlider.ScrollLayout
            style="@style/Scroller"
            app:childWidth="45dp"
            app:labelerClass="com.googlecode.android.widgets.DateSlider.labeler.DayDateLabeler"
            app:labelerFormat="%td %ta" >
        </com.googlecode.android.widgets.DateSlider.ScrollLayout>

        <include layout="@layout/dialogbuttons" />
    </com.googlecode.android.widgets.DateSlider.SliderContainer>

当我启动应用程序时，我可以看到日期滑块，但是当我触摸它时，应用程序崩溃：应用程序意外停止。抛出此异常：

10-05 20:04:59.995: E/AndroidRuntime(428): FATAL EXCEPTION: main
10-05 20:04:59.995: E/AndroidRuntime(428): java.lang.NullPointerException
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.googlecode.android.widgets.DateSlider.SliderContainer$1.onScroll(SliderContainer.java:38)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.googlecode.android.widgets.DateSlider.ScrollLayout.reScrollTo(ScrollLayout.java:402)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.googlecode.android.widgets.DateSlider.ScrollLayout.onTouchEvent(ScrollLayout.java:488)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.View.dispatchTouchEvent(View.java:3885)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:942)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1691)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1125)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.app.Activity.dispatchTouchEvent(Activity.java:2096)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1675)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewRoot.deliverPointerEvent(ViewRoot.java:2194)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1878)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.os.Handler.dispatchMessage(Handler.java:99)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.os.Looper.loop(Looper.java:130)
10-05 20:04:59.995: E/AndroidRuntime(428):  at android.app.ActivityThread.main(ActivityThread.java:3683)
10-05 20:04:59.995: E/AndroidRuntime(428):  at java.lang.reflect.Method.invokeNative(Native Method)
10-05 20:04:59.995: E/AndroidRuntime(428):  at java.lang.reflect.Method.invoke(Method.java:507)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
10-05 20:04:59.995: E/AndroidRuntime(428):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
10-05 20:04:59.995: E/AndroidRuntime(428):  at dalvik.system.NativeStart.main(Native Method)

所以我想应该创建 SliderContainer 实例......但是在哪里？

4

0 回答 0