强制关闭。更改时间:时间选择器(NPE) [英] Force Close on Changing time: Time Picker (NPE)
问题描述
当我点击时间选择器改变的时候,我得到强制关闭。
谁能告诉我哪里是我的code中的问题。 Android系统。 这是我的code ......
timePickerDateTimePickerPopup =(TimePicker)layoutDateTimePickerPopup.findViewById(R.id.timePicker_datetimepicker);
timePickerDateTimePickerPopup.setDescendantFocusability(TimePicker.FOCUS_BLOCK_DESCENDANTS);
timePickerDateTimePickerPopup.setIs24HourView(真正的);
timePickerDateTimePickerPopup.setCurrentHour(mCalendar.get(Calendar.HOUR_OF_DAY));
timePickerDateTimePickerPopup.setCurrentMinute(mCalendar.get(Calendar.MINUTE));
timePickerDateTimePickerPopup.setOnTimeChangedListener(本);
dateTimePickerPopup.setTouchable(真正的);
dateTimePickerPopup.setFocusable(真正的);
dateTimePickerPopup.setOutsideTouchable(真正的);
可绘制image_saved = context.getResources()getDrawable(R.drawable.dummy_bg)。
dateTimePickerPopup.setBackgroundDrawable(image_saved);
我的logcat显示了 NullPointerException异常
STACK_TRACE =显示java.lang.NullPointerException
在android.widget.TimePicker.updateInputState(TimePicker.java:553)
在android.widget.TimePicker.access $ 000(TimePicker.java:55)
在android.widget.TimePicker $ 2.onValueChange(TimePicker.java:149)
在android.widget.NumberPicker.notifyChange(NumberPicker.java:1777)
在android.widget.NumberPicker.changeCurrent(NumberPicker.java:1455)
在android.widget.NumberPicker.changeCurrentByOne(NumberPicker.java:1481)
在android.widget.NumberPicker.access $ 100(NumberPicker.java:70)
在android.widget.NumberPicker $ 2.onClick(NumberPicker.java:592)
在android.view.View.performClick(View.java:3519)
在android.view.View $ PerformClick.run(View.java:14140)
在android.os.Handler.handleCallback(Handler.java:605)
在android.os.Handler.dispatchMessage(Handler.java:92)
在android.os.Looper.loop(Looper.java:137)
在android.app.ActivityThread.main(ActivityThread.java:4424)
在java.lang.reflect.Method.invokeNative(本机方法)
在java.lang.reflect.Method.invoke(Method.java:511)
在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:787)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
在dalvik.system.NativeStart.main(本机方法)
更改我的应用程序的主题安卓Theme.Black
在我的 AndroidManifest.xml中
。解决了这个问题对我来说。
添加此风格 styles.xml
我的片段的风格看起来不同,但现在它的工作原理。
更新:
我已经不改变风格修复了这个问题,添加属性安卓descendantFocusability =blocksDescendants
我TimePicker
< TimePicker
机器人:ID =@ + ID / toTimePicker
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:descendantFocusability =blocksDescendants/>
When I click on the time picker for changing the time I get force close.
Can anybody tell me where is the problem in my code. Android. and this is my code......
timePickerDateTimePickerPopup = (TimePicker) layoutDateTimePickerPopup.findViewById(R.id.timePicker_datetimepicker);
timePickerDateTimePickerPopup.setDescendantFocusability(TimePicker.FOCUS_BLOCK_DESCENDANTS);
timePickerDateTimePickerPopup.setIs24HourView(true);
timePickerDateTimePickerPopup.setCurrentHour(mCalendar.get(Calendar.HOUR_OF_DAY));
timePickerDateTimePickerPopup.setCurrentMinute(mCalendar.get(Calendar.MINUTE));
timePickerDateTimePickerPopup.setOnTimeChangedListener(this);
dateTimePickerPopup.setTouchable(true);
dateTimePickerPopup.setFocusable(true);
dateTimePickerPopup.setOutsideTouchable(true);
Drawable image_saved = context.getResources().getDrawable(R.drawable.dummy_bg);
dateTimePickerPopup.setBackgroundDrawable(image_saved);
My Logcat shows a NullPointerException:
STACK_TRACE=java.lang.NullPointerException
at android.widget.TimePicker.updateInputState(TimePicker.java:553)
at android.widget.TimePicker.access$000(TimePicker.java:55)
at android.widget.TimePicker$2.onValueChange(TimePicker.java:149)
at android.widget.NumberPicker.notifyChange(NumberPicker.java:1777)
at android.widget.NumberPicker.changeCurrent(NumberPicker.java:1455)
at android.widget.NumberPicker.changeCurrentByOne(NumberPicker.java:1481)
at android.widget.NumberPicker.access$100(NumberPicker.java:70)
at android.widget.NumberPicker$2.onClick(NumberPicker.java:592)
at android.view.View.performClick(View.java:3519)
at android.view.View$PerformClick.run(View.java:14140)
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:4424)
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:787)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
at dalvik.system.NativeStart.main(Native Method)
Changing the theme of my application to android:Theme.Black
in my AndroidManifest.xml
. solved the problem for me.
adding this style to styles.xml
The style of my fragment looks different but now it works.
Update:
I have fixed this issue without changing the style, adding the property android:descendantFocusability="blocksDescendants"
to my TimePicker
<TimePicker
android:id="@+id/toTimePicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:descendantFocusability="blocksDescendants" />
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