luckyjayce / viewpagerindicator Goto Github PK

java.lang.NullPointerException
at com.shizhefei.view.indicator.FragmentListPageAdapter.instantiateItem(FragmentListPageAdapter.java:139)
at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:1034)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1182)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1116)
at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1642)
at android.view.View.measure(View.java:15523)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:681)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:15523)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
at android.view.View.measure(View.java:15523)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
at android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:393)
at android.view.View.measure(View.java:15523)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.view.View.measure(View.java:15523)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:15523)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2176)
at android.view.View.measure(View.java:15523)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1874)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1089)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1265)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4357)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
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:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)

setOnIndicatorItemClickListener onItemClick会导致ScrollIndicatorView的dispatchDraw死循环执行

hi 我想讲底部的tab ，主页，消息，发现，我，这个做成透明的，只保留图标和文字，这个怎么实现呢

可滑动tab界面里，选择12个，进去后点击最后一个tab，这组tab不会动，下面的指示器会移动过来。再点击第一个tab，这组tab会先跳动一下，然后指示器才会移动过来。也就是说点击tab的时候，这组tab有时会跳动，有时不会跳动。

用你的libiary报了这个错，就是说没有找到MainActivity这个class，推测是因为Android-support-v4.jar版本引入不一致问题，但是我引入了没有修改的androi-support-v4.jar，程序可以跑起来，只是说没有iscanscroll这个函数，但是引入了你修改的support-v4，就报了上面这个错，libiary也是引入的这个文件，希望尽快解决， 谢谢

Error:Execution failed for task ':zhongshengpreferred:transformClassesWithJarMergingForDebug'.

com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/shizhefei/indicator/BuildConfig.class

不知道为什么就会出这种问题 之前编译还是正常的 现在打开运行项目就出现这个问题 应该是包冲突了 我移除v4包还是会有这个问题

自定义adapter继承自IndicatorViewPager.IndicatorViewPagerAdapter.
应用的情景中getViewForPage方法里面返回的View是依赖于数据源的,而更新数据源后那个View不会立刻进行更新,即使是调用了notifyDataSetChanged(),个人觉得这样不符合实际应用情况.请问有没有解决方法?

java.lang.NoSuchMethodError:
No virtual method addOnPageChangeListener(Landroid/support/v4/view/ViewPager$OnPageChangeListener;)V in class Landroid/support/v4/view/ViewPager;
or its super classes (declaration of 'android.support.v4.view.ViewPager' appears in /data/data/com.weijie.ckapp/files/instant-run/dex/slice-support-v4-r7_6b487e8b8eac5541972e73dc0c160b63dd97c123-classes.dex)

at com.shizhefei.view.indicator.IndicatorViewPager.iniOnPageChangeListener(IndicatorViewPager.java:71)
at com.shizhefei.view.indicator.IndicatorViewPager.(IndicatorViewPager.java:53)
at com.shizhefei.view.indicator.IndicatorViewPager.(IndicatorViewPager.java:43)

如图所示，出现了3种颜色

// 设置page是否可滑动切换
indicatorViewPager.setPageCanScroll(false);
这个方法时取消了吗？

java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
at android.support.v4.app.FragmentManagerImpl.getFragment(FragmentManager.java:682)
at com.shizhefei.view.indicator.FragmentListPageAdapter.restoreState(FragmentListPageAdapter.java:203)
at android.support.v4.view.ViewPager.onRestoreInstanceState(ViewPager.java:1448)
at android.view.View.dispatchRestoreInstanceState(View.java:13788)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2889)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2897)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2897)
at android.view.View.restoreHierarchyState(View.java:13766)
at android.support.v4.app.Fragment.restoreViewState(Fragment.java:475)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1131)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1286)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:758)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1671)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:532)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5601)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:964)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:759)

请问是什么问题？

    viewPager = (ViewPager)findViewById(R.id.viewPager);
    indicator = (Indicator)findViewById(R.id.indicator);
    // 将viewPager和indicator使用
    bannerComponent = new BannerComponent(indicator, viewPager, true);
    inflater = LayoutInflater.from(getApplicationContext());
    adapter = new IndicatorViewPager.IndicatorViewPagerAdapter() {
            //......
    };
    // 设置indicatorViewPager的适配器
    bannerComponent.setAdapter(adapter);

    bannerComponent.setAutoPlayTime(2000);
    bannerComponent.startAutoPlay();

模拟器在卡顿1分钟左右之后（有时会报ANR），出现轮播。。
真机一直显示空白。
两个的cpu使用率基本在40% ++

使用ScrollIndicatorView会出现以上问题

中间是一个“+”号图标，点击后是拉起一个新的activity
可以写布局把图标叠加到Indicator中间，但是tab字体图标怎么均匀分配到两边

如何将下划线和文字宽度保持一致，看了源码没找到修改方法

还有，如何改选中和不选中的文字字体的大小。

代码如下：
int selectColorId = R.color.color_1eb7d2;
int unSelectColorId = R.color.color_434343;
int colorIndicat = Color.parseColor("#1eb7d2");

    indicator.setScrollBar(new ColorBar(context, colorIndicat, 10));
    indicator.setOnTransitionListener(new OnTransitionTextListener().setColorId(context, selectColorId, unSelectColorId));

    indicator.setOnItemSelectListener(new Indicator.OnItemSelectedListener() {
        @Override
        public void onItemSelected(View view, int i, int i1) {
            //这里无反应？
        }
    });

android:supportsRtl="true"，由于你这里设置了，导致引用你的库后，想要设置android:supportsRtl="false"就会报错。。。宝宝不开心了。。。测试的又打开了开发者模式下的强制从右到左测试。。。。

想让底部滑块的宽度适应标题的宽度，项数少的时候，看起来好看一点

Hello, 用了这个作为主ＴＡＢ界面，但是如果TAB中的Fragment被回收了怎么恢复呢？目前运行程序，将将它放到后台，然后用adb shell kill -9 pid　去模仿它被回收的情况，结果重新点击应用进去的话，会出现其它tab白屏的现象。求支招呀。

GetViewForTab必须返回一个TextView，又没人办法在xml里加，不知道从哪里入手了？

界面是fragment适配器要怎么写

ViewPagerIndicator里面的viewpager好像不能很好的回收，有没有让viewpager回收呢，现在我用你的库（没有修改过源码，直接导入工程）来做成类似懂球帝这样的应用，然后内存一直飙升不能回收，我估计是fragment里面的viewpager不能回收view，麻烦帮解答一下或者有什么好的建议提一下好吧？谢谢了！坐等博主的佳音

-keep class com.shizhefei.** { *;} -dontwarn com.shizhefei.view.indicator.RecyclerIndicatorView

使用了上面的规则后，能够打出release 版本，但是运行时会导致

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.greenteam.snackshopping/com.greenteam.snackshopping.activity.main.MainActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'void com.shizhefei.view.indicator.Indicator.setItemClickable(boolean)' on a null object reference

indicatorViewPager = new IndicatorViewPager(indicator, viewPager);
indicatorViewPager.setAdapter(new MyAdapter(getSupportFragmentManager(), listTab, listData));
viewPager.setCanScroll(true);
viewPager.setOffscreenPageLimit(2);

在MyAdapter中的自定义变量listTab,listData进行动态增加，界面没有变化。

BannerComponent使用SpringBar移到最后一个时有显示不全，并且下标为0的Indicator会显示一半的SpringBar。在item的数量为3个的时候.

IndicatorViewPager.IndicatorViewPagerAdapter
里面的view为imageview时(其他的没试过),imageview会挡住viewpager的indicator,但不会超出viewpager的大小.

apk文件失效了，安装之后提示不能正常运行。

我想要实现中间那个按钮突出显示（超出窗口边界），设置了FixedIndicatorView的clipChildren=false，并且将centerView的 android:layout_gravity="bottom"，还是不行

这个控件为嘛不能把子元素设为平均分布?
我弄了一两个小时,原来是这控件问题
上面这个是我用原生的linnerLayout写的,里面放3个TEXTVIEW,
下面这个是用com.shizhefei.view.indicator.FixedIndicatorView写的,里面动态添加的3个textView,
textview代码是一样的,唯一不同的就是这个父元素,上面的可以正常居中.下面的就无法居中.
我找了N多方法,都不行.除非给textView设定固定宽和高才行.
我是想平均分布有什么办法?

hello,

在demo的moretab->MoreTabActivity中，在设置tab indicator时，如果把tab_top的TextView外加一层RelativeLayout或LinearLayout时，程序直接crash掉

        if (convertView == null) {
            convertView = inflate.inflate(R.layout.tab_top, container, false);
        }
        TextView textView = (TextView) convertView.findViewById(R.id.tab); 

file name: tab_top.xml

在 FragmentTabhost 内的一个Fragment 使用的控件 切换Tab后会有问题，Fragment无法正常显示，有没有累死FragmentStatePagerAdapter 的适配器解决这个问题

java.lang.StackOverflowError: stack size 8MB
at com.shizhefei.view.indicator.IndicatorViewPager$IndicatorViewPagerAdapter$1.getCount(IndicatorViewPager.java:277)
at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:636)
at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:632)
at android.support.v4.view.ViewPager.setCurrentItem(ViewPager.java:624)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:108)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.indicator.RecyclerIndicatorView.setCurrentItem(RecyclerIndicatorView.java:121)
at com.shizhefei.view.indicator.BannerComponent.setCurrentItem(BannerComponent.java:109)
at com.shizhefei.view.indicator.BannerComponent$1.onItemSelected(BannerComponent.java:64)
at com.shizhefei.view.in

if (selectColor != -1 && unSelectColor != -1) {
selectTextView.setTextColor(gradient.getColor((int) (selectPercent * 100)));
}

貌似#ffffff的值是-1，就不会触发这里

不知道什么原因,如果内存不足时，应用程序有些activity被回收了，可能会导致有些tab白屏，急啊。

例如demo里面的tab主界面这个测试例子，现在是外层有4个tab，然后每个tab里面嵌套的是几个viewpager，如果改为嵌套的fragment的话，会发现外层的第一个tab里面的tab是正常的，但是第二个tab里面的tab就有问题了，感觉好像只能实例一个。是否是这种嵌套本身就有问题？

。。。

设置和不设置红框中的代码都 不管用.
convertView.getHeight()和convertView.getWidth(),都是显示为0,不知道这是为什么

每次切换viewpager都会打印log，类似pppp: 1: mPosition:0 offsetX:103.0，要怎么关掉这些log

想实现底部导航中间加按钮效果；1.1.4版本没有setCenterView(View centerView, ViewGroup.LayoutParams layoutParams)方法？

您好！

在 fragment_tabmain.xml中将FixedIndicatorView 改为 ScrollIndicatorView的形式，并设置auto split
结果出现第二个tab,没有auto split, 除非手动滑动一下才出现
第一个tab正常加载

第二个tab的scrollindicatorview没有auto split

手动左右滑动就行了。

请您fix 下，非常感谢

我切换成1.1.4版本后，初始化时抛出NullPointerException
关键代码：

        viewPager = (ViewPager) findViewById(R.id.viewpager);
        indicatorViewPager = new IndicatorViewPager(indicatorView, viewPager);
        indicatorView.setScrollBar(new ColorBar(this, Color.BLUE, 5));
        indicatorViewPager.setPageOffscreenLimit(2);

异常：

java.lang.NullPointerException
at com.shizhefei.view.indicator.FixedIndicatorView.measureScrollBar(FixedIndicatorView.java:499)
at com.shizhefei.view.indicator.FixedIndicatorView.onSizeChanged(FixedIndicatorView.java:564)
at android.view.View.sizeChange(View.java:14993)
at android.view.View.setFrame(View.java:14966)
at android.view.View.layout(View.java:14874)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.HorizontalScrollView.onLayout(HorizontalScrollView.java:1474)
at com.shizhefei.view.indicator.ScrollIndicatorView.onLayout(ScrollIndicatorView.java:188)
at android.view.View.layout(View.java:14878)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
at android.view.View.layout(View.java:14878)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1697)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1551)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1460)
at android.view.View.layout(View.java:14878)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
at android.view.View.layout(View.java:14878)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:14878)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1697)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1551)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1460)
at android.view.View.layout(View.java:14878)
at android.view.ViewGroup.layout(ViewGroup.java:4655)
....

打开开发者模式->GPU呈现模式分析>在屏幕上显示为线型图

然后打开viewpagerindicator 这个demo， 点击不同的的TAB时，会发现GPU一直在重绘，这样会很耗电的