Question

我正在使用this库在我的应用中使用自定义时间选择器。 TimePickerDialog类的相关代码如下：

public static TimePickerDialog newInstance(OnTimeSetListener callback,
    int hourOfDay, int minute, boolean is24HourMode) {
TimePickerDialog ret = new TimePickerDialog();
ret.initialize(callback, hourOfDay, minute, is24HourMode);
return ret;
}

在我的活动中，我使用此代码来实现：

com.android.datetimepicker.time.TimePickerDialog dialog = new        com.android.datetimepicker.time.TimePickerDialog();
dialog.newInstance((OnTimeSetListener) mTimeSetListener, getHour, getMinute, true);
FragmentManager fragmentManager;
fragmentManager = getSupportFragmentManager();
dialog.show(fragmentManager, "timepicker");

但是当我启动应用程序时，我收到一个强制关闭并出现以下错误：

01-10 11:08:29.781 8727-8727/com.example.unplugged E/AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.ClassCastException: com.example.unplugged.MainActivity$1 cannot be cast to com.android.datetimepicker.time.TimePickerDialog$OnTimeSetListener at com.example.unplugged.MainActivity.onClick(MainActivity.java:48) at android.view.View.performClick(View.java:4249) at android.view.View$PerformClick.run(View.java:17764) at android.os.Handler.handleCallback(Handler.java:730) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:5162) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:756) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:572) at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132) at dalvik.system.NativeStart.main(Native Method)

有什么建议吗？

编辑：回拨方法：

private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener()
{

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        setHour = hourOfDay;
        setMinute = minute;
    }
};

Answer 1

您必须使用android.app.TimePickerDialog.OnTimeSetListener

更改

dialog.newInstance((OnTimeSetListener) mTimeSetListener, getHour, getMinute, true);

到

dialog.newInstance(new com.android.datetimepicker.time.TimePickerDialog.OnTimeSetListener()
{
    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        setHour = hourOfDay;
        setMinute = minute;
    }
}, getHour, getMinute, true);

应用程序在显示自定义时间选择器时关闭

1 个答案: