CN106021340A - A method for realizing Android terminal dynamic table controls - Google Patents

Abstract

The invention provides a method for realizing Android terminal dynamic table controls. The method establishes the UI technology dynamically by using dynamic layout. The method comprises the steps of firstly, making database object data source access dynamic in the Android environment, and secondly, dynamically creating dynamic table controls in the Android environment. According to the invention, the method realizing Android terminal dynamic table controls does not require each business module to perform targeted compiling of data source access logic and targeted creating of layout files; programs have great reusability, so that the development cost of business function modules is reduced; the development efficiency is increased and the system stability is improved; the developing efficiency of the business function modules is increased and the maintenance difficulty is reduced.

Description

A kind of method realizing Android terminal dynamic table control

Technical field

The present invention relates to the technical field of electronic information technology, relate to Android terminal data dynamic access technology and move State builds UI technology, particularly relates to one and utilizes operation layer code or non-android system configuration file to create UI mechanism structure The method building Android terminal dynamic table control.

Background technology

In the epoch that current mobile Internet develops rapidly, a lot of mobile Internet companies are also visited in APP technical field Rope. in order to meet the purpose realizing statistical analysis under user's mobile status, need to realize a set of quick exploitation, Effec-tive Function Terminal dynamic table control.

In the most general Android terminal UI constructing technology, dynamic table control is by form complicated, loaded down with trivial details Adaptation file and the data source (adapter) according to different business customization realize.

Key step includes:

(1) specific aim definition tables title topology file；

(2) specific aim definition tables data/cell topology file；

(3) specific aim builds adapter；

(4) specific aim builds data source.

Example is described as follows:

(1) specific aim definition tables title topology file product_row.xml

<LinearLayout …>

… …

<TextView

Android:id="@+id/p_id " // name of product row ID

Android:layout_width=" wrap_content " // be forced to cell, with display all Content

Android:layout_height=" 30dp " // title bar height is 30 pixels

Android:textSize=" 18sp " // font size is 18

Android:singleLine=" true " // single file shows

Android:ellipsize=" end " // ellipsis is at the end of

Outside android:layout_marginLeft=" 25dp " // left side, back gauge is 25 pixels

Android:text=" name of product "/>

<TextView

android:text=""

Android:layout_width=" 2dp " // septal line width is 2 pixels

Android:layout_height=" 30dp " // septal line height is 30 pixels, and title content Identical

Android:textSize=" 20dp " // font size is 20 pixels

Android:layout_marginLeft=" 20dp " // outer back gauge is 20 pixels

Android:background="@color/lightblue "/> // color is light blue

… …

</LinearLayout>

Illustrate:

This topology file, based on linear placement, defines each title content and septal line one by one. the height of each title in title bar, Height is solidification, and title content font and relatively position are also solidifications.

(2) specific aim definition dynamic table data layout file

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout

… …

Android:background="@color/bluebg " // blue background

Android:orientation=" vertical " // vertical linearity layout

…>

<HorizontalScrollView …>

<LinearLayout

… …>

<!Definition each unit lattice attribute-->

<LinearLayout

Android:id="@+id/header " // title bar ID

Android:layout_width=" fill_parent " // be forced to

Android:layout_height=" wrap_content " // be forced to

Android:orientation=" horizontal " // horizontal linearity layout

Android:layout_marginLeft=" 3dp " // left side is away from size

Android:layout_marginRight=" 5dp " // rightmargin size

The back gauge size of android:layout_marginTop=" 5dp " > // top, interface

… …

<TextView

The cell of android:text=" TextView " // text type

Android:id="@+id/tv_p_name " // entitled " ProductName of correspondence Claim " permutation cell

android:layout_marginLeft="20dp"

Android:layout_width=" wrap_content " // pressure is laterally expanded Exhibition

Android:layout_height=" wrap_content " // pressure is longitudinally Extension

Android:textSize=" 20dp "/> // font size is 20 pixels Point

<TextView

android:text=""

Android:layout_width=" 2dp " // septal line width

Android:layout_height=" 30dp " // septal line height

Android:textSize=" 20dp " // septal line actual size

Android:layout_marginLeft=" 44dp " // left side away from

Android:background="@color/lightblue "/> // color For light blue

… …

</LinearLayout>

… …

<!Definition paging statistics row-->

<LinearLayout … >

<TextView

…

Android:id="@+id/totalcount " // Statistics Bar ID

Android:text="@string/totalcount " // statistical information

Android:gravity=" center " // be shown centered on

Android:layout_marginLeft=" the 5dp "/> // left side away from

… …

</LinearLayout>

</LinearLayout>

</HorizontalScrollView>

</RelativeLayout>

(3) product data adapter is individually built

public class ProductAdapter extends BaseAdapter {

… …

public View getView(int position,

View convertView,

ViewGroup parent) {

ViewHolder holder = null;

if(null == convertView){

holder = new ViewHolder();

// load adaptation file product_row.xml

convertView = inflater.inflate(R.layout.product_row, null);

holder.tv1=(TextView) convertView.findViewById (R.id.rownumberr);

holder.tv2 = (TextView) convertView.findViewById(R.id.tv_ p_name);

holder.tv3 = (TextView) convertView.findViewById (R.id.cdmc);

holder.tv4 = (TextView) convertView.findViewById(R.id.zc);

holder.tv5 = (TextView) convertView.findViewById (R.id.msjc);

convertView.setTag(holder);

} else {

holder = (ViewHolder) convertView.getTag();

}

//Product is the entity class built for current data source

Product product = (Product) list.get(position);

holder.tv1.setText(product.getId());

holder.tv2.setText(product.getName());

holder.tv3.setText(product.getAddress());

holder.tv4.setText(product.getSize());

return convertView;

}

… …

// define the text object corresponding with the quantity showing row

class ViewHolder {

TextView tv1 = null;

TextView tv2 = null;

TextView tv3 = null;

TextView tv4 = null;

TextView tv5 = null;

}

}

Illustrate:

A) this adapter builds for adaptation file;

B) in adapter, Product class is the entity class built for current data source;

Different service needed creates different entity class.

(4) data source is individually built

public class DataSource implements Content {

private Product data;

… …

public List<Product> getProductList(long offset,long limit){

String sql = "select kcb,cdmc,zc,msjc from pub_ product limit ?,?";

Cursor cursor = db.rawQuery(sql, new String[]{offset +"", limit +""});

List<KeCheng> list = null;

long rownumber = offset +1;

if(cs.getCount()>0){

cs.moveToFirst();

list = new ArrayList<User>();

while(cs.moveToNext()){

kcb =cs.getString(cs.getColumnIndex("kcb"));

cdmc = cs.getString(cs.getColumnIndex(" cdmc"));

zc = cs.getString(cs.getColumnIndex("zc"));

msjc = cs.getString(cs.getColumnIndex(" msjc"));

data = new Product(rownumber+"",kcb,cdmc,zc, msjc);

list.add(data);

rownumber++;

}

}

cs.close();

rownumber = 0;

return list;

}

… …

}

Above building process explanation, the most general UI building mode, need to follow the structure side that Android platform is intrinsic Formula, needs to be cured in engineering all kinds of adaptation file.Said method is used to exist for some shortcomings:

I. all kinds of interface elements defined in adaptation file, its attribute configuration is solidification, and once packing is deployed to Android phase Close market, basically can not accomplish to be adjusted flexibly, control flexibly；

Ii. development difficulty is big, cost is high, each UI, is required to the adaptation file that specific aim exploitation is corresponding；

Work is adjusted time-consuming when attribute layout nesting various, each uses；

Developer is needed to grasp the implication of each attribute and can use flexibly；

Iii. execution efficiency is relatively low.Program needs to resolve one by one the adaptation file of the configuration complexity of these manual creation, and coordinates Data source, adapter targetedly, just can complete UI and show；

Iv. program does not have durability.

Summary of the invention

The technical problem that present invention mainly solves is to provide a kind of method realizing Android terminal dynamic table control, Writing data source without each business module specific aim and access logic and specific aim establishment topology file, program has the strongest answering By property, reduce the development cost of business function module, improve the stability of development efficiency and system, and business function is provided The development efficiency of module, reduces maintenance difficulties.

For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provides one and realizes Android eventually The method of end dynamic table control, utilizes Dynamic Distribution's dynamic construction UI technology, including step in detail below:

Step 1, under Android environment, to data base's object data source access mobilism

Wherein, the mobilism that data source accesses, it is embodied in following two aspects:

(1.1) when realizing business function, incoming table name or view name, field name, querying condition, system automatically extracts number According to, return data set；

(1.2) in realizing business function or system initialization service, XML, JSON configuration file of sync server end, according to The table name specified in configuration file or view name, field name, querying condition, automatically extract data, returns data set；

Dynamic table control under step 2, dynamic creation Android environment

Wherein, the mobilism that dynamic table control creates, it is embodied in following two aspects:

(2.1) in service class, incoming title, sequentially, the parameter such as row original width, system can auto-associating dynamic data The data set that source is returned, builds dynamic table interface；

(2.2) in service class or system initialization service, the XML configuration file of sync server end, according in configuration file The title specified, sequentially, the parameter such as row original width, system can the data set that returned of auto-associating dynamic data source, Build dynamic table interface.

The invention has the beneficial effects as follows: the method realizing Android terminal dynamic table control of the present invention, it is not necessary to each Business module specific aim is write data source and is accessed logic and specific aim establishment topology file, and program has the strongest durability, subtracts The development cost of few business function module, improves the stability of development efficiency and system, and provides business function module Development efficiency, reduces maintenance difficulties.

Detailed description of the invention

Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common All other embodiments that technical staff is obtained under not making creative work premise, broadly fall into the model of present invention protection Enclose.

The embodiment of the present invention includes:

A kind of method realizing Android terminal dynamic table control, utilizes Dynamic Distribution's dynamic construction UI technology, including following Concrete steps:

Step 1, under Android environment, to data base's object data source access mobilism

Wherein, the mobilism that data source accesses, it is embodied in following two aspects:

(1.1) when realizing business function, incoming table name or view name, field name, querying condition, system automatically extracts number According to, return data set；

(1.2) in realizing business function or system initialization service, XML, JSON configuration file of sync server end, according to The table name specified in configuration file or view name, field name, querying condition, automatically extract data, returns data set；

Dynamic table control under step 2, dynamic creation Android environment

Wherein, the mobilism that dynamic table control creates, it is embodied in following two aspects:

(2.1) in service class, incoming title, sequentially, the parameter such as row original width, system can auto-associating dynamic data The data set that source is returned, builds dynamic table interface；

(2.2) in service class or system initialization service, the XML configuration file of sync server end, according in configuration file The title specified, sequentially, the parameter such as row original width, system can the data set that returned of auto-associating dynamic data source, Build dynamic table interface.

Embodiment:

The present invention utilizes the mode of dynamic creating controls, quickly realizes the dynamic table query function of Android terminal.Can lead to Cross the following two kinds mode to realize:

1, in the OnCreate initialization function in service class (concrete vocational window class), by each for form generic attribute, data The information such as source (including table name, field name), transmission is from the adapter of encapsulation, and it is dynamic that this adapter can automatically create needed for us State form (form).

// field name (entity attribute title) list in database table is set

String columns = "KCB,CDMC,ZC,SKJC";

// title of form, and the field name one_to_one corresponding in field name list are set

String [] colTitleName={ " name of product ", " product price ", " product category ", " product quantity " };

The width of individual cell during/* list display, can be not provided with, and system uses acquiescence automatically.

With the field name one_to_one corresponding * in field name list/

int[] columnsWidth={60,400,450,150,100};

// database object title, can be table name or view name

String tableName = "pub_product";

…

// show that check box true represents display false representative and do not shows the most in the table

hasCheckBox=true;

this.setHasCheckBox(hasCheckBox);

// adapter is set

DataAbsAdapter baseAdapter = new DataAbsAdapter(this,columns, columnsWidth,hasCheckBox);

this.setBaseAdapter(baseAdapter);

2, providing the resource file outside engineering, system builds UI. according to set resource file and can carry according to server end The xml document of confession, the dynamic table interface required for program dynamic construction:

<?xml version="1.0" encoding="utf-8"?>

<table name=”pub_product” ischeck=”1” >

<kcb name=”The product name”datatype=”string”width=”60”></kcb>

<cdmc name=”The product price”datatype=”string”width=”400”></cdmc>

<zc name=”Product categories”datatype=”int”width=”450”></zc>

<skjc name=”Product quantity”datatype=”int”width=”150”></skjc>

</table>

Illustrate:

(1) data source of the name attribute specified form in table label, available is table name or view name,

When ischeck property value is 1, represents and create check box,

When ischeck property value is 0, represents and do not create check box；

(2) each subtab title under table label, the field name in corresponding data source；

(3) title in the name attribute representative form of each subtab under table label；

(4) data type of present field in the datatype attribute representative data source of each subtab under table label；

(5) width shared by current cell in the width attribute representative form of each subtab under table label.

1, the advantage that data source accesses mobilism:

(1) write data source without each business module specific aim and access logic；

(2) the access logic of data base is given the database management component from encapsulation in system；

(3) program has a strongest durability, reduces the development cost of business function module, improves development efficiency and system Stability.

2, the advantage that dynamic creation dynamic table control creates:

(1) topology file is created without each business module specific aim；

(2) without writing adapter for each business module specific aim；

(3) without being concerned about the position of each cell, size in dynamic table, this dynamic table control can calculate, automatically automatically Adaptive different resolution, the mobile phone environment of different screen size；

(4) without individually creating, control paging statistics operation；

(5) program has the strongest durability, it is provided that the development efficiency of business function module, reduces maintenance difficulties.

In sum, the method realizing Android terminal dynamic table control of the present invention, it is not necessary to each business module pin Property being write data source and accesses logic and specific aim establishment topology file, program has the strongest durability, reduces business function The development cost of module, improves the stability of development efficiency and system, and provides the development efficiency of business function module, fall Low-maintenance difficulty.

The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology neck Territory, is the most in like manner included in the scope of patent protection of the present invention.

Claims (1)

1. the method realizing Android terminal dynamic table control, utilizes Dynamic Distribution's dynamic construction UI technology, its feature It is, including step in detail below:

Step 1, under Android environment, to data base's object data source access mobilism

Wherein, the mobilism that data source accesses, it is embodied in following two aspects:

(1.1) when realizing business function, incoming table name or view name, field name, querying condition, system automatically extracts number According to, return data set；

(1.2) in realizing business function or system initialization service, XML, JSON configuration file of sync server end, according to The table name specified in configuration file or view name, field name, querying condition, automatically extract data, returns data set；

Dynamic table control under step 2, dynamic creation Android environment

Wherein, the mobilism that dynamic table control creates, it is embodied in following two aspects:

(2.1) in service class, incoming title, sequentially, the parameter such as row original width, system can auto-associating dynamic data The data set that source is returned, builds dynamic table interface；

(2.2) in service class or system initialization service, the XML configuration file of sync server end, according in configuration file The title specified, sequentially, the parameter such as row original width, system can the data set that returned of auto-associating dynamic data source, Build dynamic table interface.