CN108153515A

CN108153515A - It is reviewed after a kind of Android platform RecycleView controls editor's data and rolls chaotic solution

Info

Publication number: CN108153515A
Application number: CN201710394009.9A
Authority: CN
Inventors: 陈林; 徐震宇; 张来卿; 文新; 季统凯
Original assignee: Cloud Computing Center of CAS; G Cloud Technology Co Ltd
Current assignee: Cloud Computing Center of CAS; Cloud Computing Industry Technology Innovation and Incubation Center of CAS; G Cloud Technology Co Ltd
Priority date: 2017-05-28
Filing date: 2017-05-28
Publication date: 2018-06-12

Abstract

The present invention relates to Android set platform technologys field, reviewed after more particularly to a kind of Android platform RecycleView controls editor's data and roll chaotic solution.The method of the present invention is to rewrite the trigger event TextWatcher classes of EditText, and then entity class is added in mDatas data acquisition systems in positon positions passing through in EditText in current sub- layout in the data setting to the Count attributes of entity class that Button changes in its onTextChangeListener method.The present invention solves the problems, such as the data corruption of EditText when the drop-down of RecyclerView views refreshes or rolls.

Description

It is reviewed after a kind of Android platform RecycleView controls editor's data and rolls confusion Solution

Technical field

The present invention relates to Android set platform technologys field, more particularly to a kind of Android platform RecycleView controls It is reviewed after editor's data and rolls chaotic solution.

Background technology

As shown in Figure 1, the RecycleView views with EditText controls are used under Android platform and are loaded During many data, if changing the content in certain upper EditText controls of item layout with Button control at this time, When being easy for causing page scroll the problem of data corruption.

Invention content

Present invention solves the technical problem that it is the provision of in a kind of RecyclerView controls based on Android platform The data of EditText roll method the problem of repeating after control Button is used to change；Particularly drop-down refreshes or rolls When dynamic the problem of the data corruption of EditText.

The present invention solve above-mentioned technical problem technical solution be：

The method is to rewrite the trigger event TextWatcher classes of EditText, and at it The data setting for passing through Button changes in EditText in current sub- layout is arrived in onTextChangeListener methods In the Count attributes of entity class, then entity class is added in mDatas data acquisition systems in positon positions.

The method specifically includes following steps：

Step 1: it creates the main topology file of the activity_list.xml with RecyclerView and carries The sub- topology files of the item_activity_list.xml of EditText controls and Button control；

It inherits the RecyclerViewActivity main classes of ActionBarActivity Step 2: creating, inherit The adapter class of the RecyclerAdapter of RecyclerView.Adapter and entity class ProductEntity；

Step 3: the view RecyclerViewmRecyclerView defined in RecyclerViewActivity classes, suitable Orchestration RecyclerAdapter mAdapter, data acquisition system List ＜ ProductEntity ＞ mDatas etc.；

Step 4: initializing control and data in the onCreate methods of RecyclerViewActivity, and allow MRecyclerView setting adapters mAdapter；

Step 5: creating instance variable ProductEntity mData in RecyclerAdapter, create and inherit The subclass RecyclerViewHolder of ViewHolder；

Step 6: the control in item_activity_list.xml layout is initialized in RecyclerViewHolder Part, defined in the onCreateViewHolder methods in RecyclerAdapter RecyclerViewHoldermHodler, and item_activity_list.xml layout is loaded, it is then back to variable mHodler；

Step 7: the abstract class EditTextWatcher of TextWatcher are inherited in definition, abstract side is created Method onTextChangeListener (Editables, ViewHolder holder), Ran Hou It is called in onTextChangeListener methods；

Step 8: creation method setData (String str, int position), for preserving fixed position Content in EditText；

Step 9: in onBindViewHolder methods in RecyclerAdapter classes, when Button is triggered During onClick events, in the data setting to the count attributes of mData in EditText；Add simultaneously to EditText controls Add addTextChangedListener events, and realize onTextChangeListener methods, call in this method SetData (s.toString (), position) method, in the data setting to data acquisition system in EditText Data mdata.getCount () is finally reset to EditText by positon positions by setText () method again In.

The step is a kind of, and Button is used for dynamically updating the data in EditText controls；

In the step two, entity class has the attributes such as id, name, count.

Beneficial effects of the present invention：It is rolled when the RecycleView views for using Android platform carry out majority according to loading When, the data in the EditText on its current Item are set into entity class, and entity class is added in Position positions It is added in set mDatas, the data that can thus control EditText on current Item positions are constant, solved so as to reach Purpose chaotic during data scrolling in EditText.

Description of the drawings

The present invention is further described below in conjunction with the accompanying drawings：

Fig. 1 rolls chaotic sectional drawing for prior art state；

Fig. 2 is flow chart of the method for the present invention.

Specific embodiment

As shown in Fig. 2, the present invention uses following steps：

Step 1: it creates the main topology file of the activity_list.xml with RecyclerView and carries The sub- topology files of the item_activity_list.xml of EditText controls and Button control, wherein Button are used for dynamic Update the data in EditText controls；Such as：

Main layout：

Son layout：

It inherits the RecyclerViewActivity main classes of ActionBarActivity Step 2: creating, inherit The adapter class and entity class ProductEntity, entity class of the RecyclerAdapter of RecyclerView.Adapter has The attributes such as id, name, count；Such as：

Step 3: view RecyclerView mRecyclerView defined in RecyclerViewActivity classes, Adapter RecyclerAdapter mAdapter, data acquisition system List ＜ ProductEntity ＞ mDatas etc.；Such as：

Step 4: initializing control and data in the onCreate methods of RecyclerViewActivity, and allow MRecyclerView setting adapters mAdapter；Such as：

Step 5: creating instance variable ProductEntity mData in RecyclerAdapter, create and inherit The subclass RecyclerViewHolder of ViewHolder；Such as：

Step 6: the control in item_activity_list.xml layout is initialized in RecyclerViewHolder Part, RecyclerViewHolder defined in the onCreateViewHolder methods in RecyclerAdapter MHodler, and item_activity_list.xml layout is loaded, it is then back to variable mHodler；Such as：

Step 7: the abstract class EditTextWatcher of TextWatcher are inherited in definition, abstract side is created Method onTextChangeListener (Editable s, ViewHolder holder), Ran Hou It is called in onTextChangeListener methods；Such as：

Step 8: creation method setData (String str, int position), for preserving fixed position Content in EditText；Such as：

Step 9: in onBindViewHolder methods in RecyclerAdapter classes, when Button is triggered During onClick events, the data in EditText are set into the count attributes of mData, while is added to EditText controls Add addTextChangedListener events, and realize onTextChangeListener methods, call in this method SetData (s.toString (), position) method, in the data setting to data acquisition system in EditText Data mdata.getCount () is finally reset to EditText by positon positions by setText () method again In.Such as：

Claims

Chaotic solution is rolled 1. being reviewed after a kind of Android platform RecycleView controls editor's data, it is characterised in that： The method is to rewrite the trigger event TextWatcher classes of EditText, and in its onTextChangeListener side Passing through in EditText in current sub- layout in the data setting to the Count attributes of entity class that Button changes in method, so Entity class is added in mDatas data acquisition systems in positon positions afterwards.
2. solution according to claim 1, it is characterised in that：The method specifically includes following steps：

Step 1: creating the main topology file of the activity_list.xml with RecyclerView and with EditText The sub- topology files of the item_activity_list.xml of control and Button control；

It inherits the RecyclerViewActivity main classes of ActionBarActivity Step 2: creating, inherit The adapter class of the RecyclerAdapter of RecyclerView.Adapter and entity class ProductEntity；

Step 3: view RecyclerView mRecyclerView defined in RecyclerViewActivity classes, adaptation Device RecyclerAdapter mAdapter, data acquisition system List ＜ ProductEntity ＞ mDatas etc.；

Step 4: initializing control and data in the onCreate methods of RecyclerViewActivity, and allow MRecyclerView setting adapters mAdapter；

Step 5: creating instance variable ProductEntity mData in RecyclerAdapter, create and inherit The subclass RecyclerViewHolder of ViewHolder；

Step 6: the control in item_activity_list.xml layout is initialized in RecyclerViewHolder, RecyclerViewHolder mHodler defined in onCreateViewHolder methods in RecyclerAdapter, and Item_activity_list.xml layout is loaded, is then back to variable mHodler；

Step 7: the abstract class EditTextWatcher of TextWatcher are inherited in definition, abstract methods are created OnTextChangeListener (Editable s, ViewHolder holder), then in onTextChangeListener It is called in method；

Step 8: creation method setData (String str, int position), for preserving fixed position Content in EditText；

Step 9: in onBindViewHolder methods in RecyclerAdapter classes, when Button triggers onClick During event, in the data setting to the count attributes of mData in EditText；It is added simultaneously to EditText controls AddTextChangedListener events, and realize onTextChangeListener methods, it calls in this method SetData (s.toString (), position) method, in the data setting to data acquisition system in EditText Data mdata.getCount () is finally reset to EditText by positon positions by setText () method again In.
3. solution according to claim 2, it is characterised in that：The step is a kind of, and Button is used for dynamic more Data in new EditText controls.
4. the solution according to Claims 2 or 3, it is characterised in that：In the step two, entity class has id, The attributes such as name, count.