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Bigkoo / Android-PickerView

This is a picker view for android , support linkage effect, timepicker and optionspicker.（时间选择器、省市区三级联动）
Apache License 2.0
13.45k stars 3.45k forks source link

为什么我直接使用时间选择器报错 #467

Closed ITskyIT closed 6 years ago

ITskyIT commented 6 years ago

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setTag(java.lang.Object)' on a null object reference at com.bigkoo.pickerview.TimePickerView.initView(TimePickerView.java:401) at com.bigkoo.pickerview.TimePickerView.(TimePickerView.java:119) at com.bigkoo.pickerview.TimePickerView$Builder.build(TimePickerView.java:381) at com.ruanmeng.carplace91.publish.PublishNextActivity.initTimePicker(PublishNextActivity.java:483) at com.ruanmeng.carplace91.publish.PublishNextActivity.onCreate(PublishNextActivity.java:182)

xiaosong520 commented 6 years ago

@ITskyIT 这个是因为你的 Button 控件报空了导致的~

ITskyIT commented 6 years ago

但是我并没有引用button控件，我依赖3.2.7 复制你的demo中的代码 也是报错 @xiaosong520

ITskyIT commented 6 years ago

timePickerView = new TimePickerView.Builder(this, new TimePickerView.OnTimeSelectListener() { @Override public void onTimeSelect(Date date, View v) {//选中事件回调

        }
    })
            //年月日时分秒 的显示与否，不设置则默认全部显示
            .setType(new boolean[]{true, true, false, false, false, false})
            .setLabel("", "", "", "", "", "")
            .isCenterLabel(false)
            .setDividerColor(Color.DKGRAY)
            .setContentSize(21)
            .setDecorView(null)
            .build();

这段build的时候就报错了

xiaosong520 commented 6 years ago

@ITskyIT 这个应该是你项目里面存在重复的布局，导致布局被覆盖了，控件找不到资源而出错。 试试在你自己项目里面 找找 include_pickerview_topbar.xml，看看是否有同名的布局。

Nextweekends commented 6 years ago

我也遇到了同样的问题 Process: cn.citytag.mapgo, PID: 23492 java.lang.NoSuchFieldError: No field rv_topbar of type I in class Lcom/bigkoo/pickerview/R$id; or its superclasses (declaration of 'com.bigkoo.pickerview.R$id' appears in /data/app/cn.citytag.mapgo-2/base.apk:classes21.dex) at com.bigkoo.pickerview.TimePickerView.initView(TimePickerView.java:460) at com.bigkoo.pickerview.TimePickerView.(TimePickerView.java:128) at com.bigkoo.pickerview.TimePickerView$Builder.build(TimePickerView.java:420)