fragment | 易学教程

UI performance about Fragment

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问题 With fragment, it seems that, I can use one activity with many fragments to finish complicate UI. Someone told me that one activity should not include more than 100 views regarding UI performance, now I want to know is there any performance limitation, such as I have ten fragments, one fragment include about 100 views. BTW, I am developing an app for tablet. 回答1: There's not a set number of views at which your application stops functioning. The 100 views thing is just a rule of thumb. Don't

My Fragment is not being attached to the Main Activity Class.

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问题 Taking my previous experiences, i am trying to list some custom list items using BaseAdapter , which uses two string from array defined in string values.xml My app is crashing saying that my fragment is not attached with activity. MainActivity.java is : public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); FragmentManager fragmentManager = getFragmentManager();

Unable to create converter for class

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问题 I am using retrofit in my app and Gson convertor for JSON. I would like to use database when there is not internet connection. I decided to use Sugar ORM. but I get an IllegalArgumentException . java.lang.IllegalArgumentException: Unable to create converter for class here is my object public class User extends SugarRecord implements Parcelable { @SerializedName("id") @Expose private Integer id; @SerializedName("email") @Expose private String email; @SerializedName("name") @Expose private

Show FragmentDialog in RecyclerView adapter

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问题 Here is my scenario I refer this link I have a Navigation Drawer it contain FeedFragment. And FeeedFragment have recyclerview. And my onClick is in RecyclerView adapter so i wanna to open FragmentDialog in this onclick method so please help me.. FeedFragment.java import android.support.v4.app.FragmentManager; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget

Recyclerview in fragmnet using volley json data?

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问题 please any one explain RecyclerView in fragment using volley to get json data. Already i refered below link coding Google recyclerview in fragment this is my first project in android, so i cannot understand that coding. Please any one help me. My fragmnet Coding: public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View drawer = inflater.inflate(R.layout.fragment_progress, container, false); orderLists = new ArrayList<>(); getProgressData();

Recyclerview in fragmnet using volley json data?

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Not call onRequestPermissionsResult from fragment

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问题 In my android project, I use this code to check & request runtime permissions: public class AgentsFragmentMapTab extends RootFragment implements ActivityCompat.OnRequestPermissionsResultCallback { //.. private boolean checkAndRequestPermissions() { int internet = ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.INTERNET); int loc = ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION); int loc2 = ContextCompat.checkSelfPermission

Alpha第七天

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Alpha第七天听说 031502543 周龙荣（队长） 031502615 李家鹏 031502632 伍晨薇 031502637 张柽 031502639 郑秦 1.前言任务分配是VV、ZQ、ZC负责前端开发，由JP和LL负责建库和服务器。界面开发的教辅材料是《第一行代码》，利用Android Studio进行开发。 2.燃尽图 3.项目进展及安排日期已完成未完成 10月31日数据库完成+数据库测试；登录界面+注册界面+密码找回 11月 1日服务器初步搭建；写日记界面+我的界面+设置+退出登录 11月 2日服务器的进一步搭建；日记本+收藏界面 11月 3日服务器的继续搭建；首页（每日一推+我的日记+收到日记） 11月 4日服务器部署SQL；收到日记+接收页面 11月 5日服务器部分接口；评论页面 11月 6日服务器通信和接口；界面的功能实现 11月 7日 11月 8日 11月 9日 4.问题困难 VV ：被跳转一直卡住 JP ：与安卓的通信成功了，但是由于一些没搞懂的网络问题，发现有些时候服务器程序会关闭连接。 ZC ：在按着书上来做recycleview时发现有的地方一样的代码却不能实现功能书上应用标题栏的代码试着运行了一下无法实现 LL ：通信基本成功了，但是用手机通信的时候，还是有存在服务器端关闭连接的问题。 ZQ ：实现界面跳转 5

WiX: pulling in a CustomTable from a Fragment WITHOUT a CustomAction

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问题 I have a custom table defined in a <Fragment> that I want to link into the main .wxs file. My question is similar to this question, but my fragment does not have a <CustomAction> tag to refer to, and there is no <CustomTableRef> tag to use in the main file. Is the only way to pull in a <Fragment> that does not have a <...Ref> able tag to inject a dummy tag that can be Ref 'd? -- e.g. a <Component> with a "never-install" condition, or a <CustomAction> that never gets scheduled to run (or does

Tabs in a class that extends fragment

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问题 I'm reading many tutorial how to implement tabs in a class that extends FragmentActivity , but no one about how to implement tabs in a class that extends Fragment I created with AndroidStudio a new project with a NavigationDrawerFragment : this navigationDrawerFragment for every option menu that it displays create a new Fragment. Inside this fragment i need to have some tabs. how can i add tabs inside onCreateView method of the fragment? someone can give to me a very simple example? What i'm