开发者

Creating a table list, XML or programmatically

开发者 https://www.devze.com 2023-02-17 15:17 出处：网络
I currently am building a list of database driven results on an Android page.I\'ve read that you should however, build your content views in XML, which I have done.My question is, should I really buil
相关专题：androidxml

I currently am building a list of database driven results on an Android page. I've read that you should however, build your content views in XML, which I have done. My question is, should I really build 10 empty rows and populate them on the fly, or should I add the rows through building the views in Java? I may add more rows later on.

The data I am displaying looks something like this:

Creating a table list, XML or programmatically

The controls on the right increase and decrease the number of points allotted to a skill开发者_运维百科, so the list/row will have to enable some type of user control.

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

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    android:scrollbars="vertical" android:background="#ffffff"
    android:scrollbarAlwaysDrawHorizontalTrack="true">
    <HorizontalScrollView android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:scrollbarAlwaysDrawHorizontalTrack="true">
        <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="fill_parent" android:layout_height="fill_parent">

            <TableLayout android:layout_width="fill_parent"
                android:layout_height="fill_parent" android:background="#ffffff">
                <TableRow android:background="#000000"
                    android:layout_width="fill_parent" android:layout_height="fill_parent"
                    android:layout_margin="1dip">

                    <TextView android:textColor="#000000" android:text="Name"
                        android:background="#00CCFF" android:layout_margin="1dip" android:textStyle="bold"/>
                    <TextView android:textColor="#000000" android:text="Phone No."
                        android:background="#00CCFF" android:layout_margin="1dip"  android:textStyle="bold"/>
                    <TextView android:textColor="#000000" android:text="City"
                        android:background="#00CCFF" android:layout_margin="1dip" android:textStyle="bold"/>
                    <TextView android:textColor="#000000" android:text="Area-1"
                        android:background="#00CCFF" android:layout_margin="1dip" android:textStyle="bold"/>
                    <TextView android:textColor="#000000" android:text="Area-2"
                        android:background="#00CCFF" android:layout_margin="1dip" android:textStyle="bold"/>


                </TableRow>

            <!--    DATA   -->
                <TableRow android:background="#000000"
                    android:layout_width="fill_parent" android:layout_height="fill_parent"
                    android:layout_margin="1dip">

                    <TextView android:textColor="#000000" android:text="Rameshbhai"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="983874838"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="Rajkot"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="RaiyaRoad"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="Bhaktinagar Circle"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>

                </TableRow>
                <TableRow android:background="#000000"
                    android:layout_width="fill_parent" android:layout_height="fill_parent"
                    android:layout_margin="1dip">

                    <TextView android:textColor="#000000" android:text="Hirenbhai"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip" />
                    <TextView android:textColor="#000000" android:text="903839388"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="Ahmedabad"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                        <TextView android:textColor="#000000" android:text="Satellite"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                        <TextView android:textColor="#000000" android:text="Maninagar"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>


                </TableRow>
                <TableRow android:background="#000000"
                    android:layout_width="fill_parent" android:layout_height="fill_parent"
                    android:layout_margin="1dip">

                    <TextView android:textColor="#000000" android:text="Rameshbhai"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="983874838"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="Rajkot"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="RaiyaRoad"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>
                    <TextView android:textColor="#000000" android:text="Bhaktinagar Circle"
                        android:background="#ffffff" android:layout_margin="1dip" android:padding="3dip"/>

                </TableRow>


            </TableLayout>
        </RelativeLayout>
    </HorizontalScrollView>
</ScrollView>

I think this code will help you.

here is whole Program...

import android.app.Activity;
import android.content.Intent;

import android.graphics.Color;
import android.view.*;
import android.view.MenuItem.OnMenuItemClickListener;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.*;
import android.widget.TableLayout.LayoutParams;
import android.os.Bundle;

import org.garret.perst.*;

public class RetailerTable extends Activity implements OnClickListener, OnFocusChangeListener {
    public static LinearLayout mainLayout;
    public static ScrollView scrollview;
    public static HorizontalScrollView Hscrollview;
    public static TableLayout tableLayout;
    public TableRow tableRow;
    public CheckBox checkbox;
    public static int oldView = 0;
    public int rowid = 0, colid = 0;
    public int oldColor = 0;
    public static int retailerId = 0;
    public final int COLNO = 7;
    public final String  DATABASE_NAME="AIRTEL.db";
    public final String  TABLE_NAME="Retailer";


    // database object
    public DataHelper datahelper;

    final static int pagePoolSize = 2 * 1024 * 1024;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        scrollview = new ScrollView(this);
        Hscrollview = new HorizontalScrollView(this);
        tableLayout = new TableLayout(this);

    //database code
        try{
        datahelper=new DataHelper(this,DATABASE_NAME,TABLE_NAME );

        Retailer[] retailer=new Retailer[500];
        retailer=datahelper.selectAll();
            for(int i=0;i<retailer.length;i++)
            {
                CreateRetailerTable(retailer[i], i);
            }
        }catch(Exception e){
        Toast.makeText(this,"Error"+ e.getMessage(), Toast.LENGTH_LONG).show(); 
        }
    //  insertRetailer();
    //  fetchRetailer();

        Hscrollview.addView(tableLayout);
        scrollview.addView(Hscrollview);

        setContentView(scrollview);
        //TextView Textview = new TextView(this);
    //  Textview = (TextView) scrollview.findViewById(10);
    //  Toast.makeText(this, Textview.getText(), Toast.LENGTH_LONG).show();

    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        menu.add(0, 0, 0, "Import");
        menu.add(0, 1, 0, "ADD");

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case 0:
            showMsg("Import");
            break;
        case 1:
            //showMsg("Add");
            startActivity(new Intent(RetailerTable.this,RetailerForm.class));
            break;
        }
        return super.onOptionsItemSelected(item);
    }
    private void showMsg(String msg) {
        Toast toast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, toast.getXOffset() / 2, toast.getYOffset() / 2);
        toast.show();
    }






    public void CreateRetailerTable(Retailer ret, int i) {
        try {
            LinearLayout.LayoutParams params = new LayoutParams(
                    android.widget.LinearLayout.LayoutParams.WRAP_CONTENT,
                    android.widget.LinearLayout.LayoutParams.WRAP_CONTENT);
            params.setMargins(1, 1, 1, 1);

            tableRow = new TableRow(this);
            tableRow.setOnClickListener(this);
            tableRow.setId(rowid);

            // Column-1
            rowid++;
            mainLayout = new LinearLayout(this);
            TextView txtBox = new TextView(this);
            if (i % 2 == 0) {
                txtBox.setBackgroundResource(R.color.white);
            } else {
                txtBox.setBackgroundResource(R.color.LightPink);
            }
            txtBox.setTextColor(Color.BLACK);
            txtBox.setHeight(25);
            txtBox.setPadding(3, 3, 3, 3);
            txtBox.setId((rowid));
            txtBox.setText(String.valueOf(ret.ID));
            txtBox.setOnClickListener(this);
            txtBox.setOnFocusChangeListener(this);
            mainLayout.addView(txtBox, params);
            tableRow.addView(mainLayout);

            // Column-2
            rowid++;
            mainLayout = new LinearLayout(this);
            txtBox = new TextView(this);
            if (i % 2 == 0) {
                txtBox.setBackgroundResource(R.color.white);
            } else {
                txtBox.setBackgroundResource(R.color.LightPink);
            }
            txtBox.setTextColor(Color.BLACK);
            txtBox.setHeight(25);
            txtBox.setPadding(3, 3, 3, 3);
            txtBox.setId((rowid));
            txtBox.setText(ret.Name);
            txtBox.setOnClickListener(this);
            txtBox.setOnFocusChangeListener(this);
            mainLayout.addView(txtBox, params);
            tableRow.addView(mainLayout);

            // Column-3
            rowid++;
            mainLayout = new LinearLayout(this);
            txtBox = new TextView(this);
            if (i % 2 == 0) {
                txtBox.setBackgroundResource(R.color.white);
            } else {
                txtBox.setBackgroundResource(R.color.LightPink);
            }
            txtBox.setTextColor(Color.BLACK);
            txtBox.setHeight(25);
            txtBox.setPadding(3, 3, 3, 3);
            txtBox.setId((rowid));
            txtBox.setText(ret.phone);
            txtBox.setOnClickListener(this);
            txtBox.setOnFocusChangeListener(this);
            mainLayout.addView(txtBox, params);
            tableRow.addView(mainLayout);

            // Column-4
            rowid++;
            mainLayout = new LinearLayout(this);
            txtBox = new TextView(this);
            if (i % 2 == 0) {
                txtBox.setBackgroundResource(R.color.white);
            } else {
                txtBox.setBackgroundResource(R.color.LightPink);
            }
            txtBox.setTextColor(Color.BLACK);
            txtBox.setHeight(25);
            txtBox.setPadding(3, 3, 3, 3);
            txtBox.setId((rowid));
            txtBox.setText(ret.FosNo);
            txtBox.setOnClickListener(this);
            txtBox.setOnFocusChangeListener(this);
            mainLayout.addView(txtBox, params);
            tableRow.addView(mainLayout);

            // Column-5
            rowid++;
            mainLayout = new LinearLayout(this);
            txtBox = new TextView(this);
            if (i % 2 == 0) {
                txtBox.setBackgroundResource(R.color.white);
            } else {
                txtBox.setBackgroundResource(R.color.LightPink);
            }
            txtBox.setTextColor(Color.BLACK);
            txtBox.setHeight(25);
            txtBox.setPadding(3, 3, 3, 3);
            txtBox.setId((rowid));
            txtBox.setText(ret.FosName);
            txtBox.setOnClickListener(this);
            txtBox.setOnFocusChangeListener(this);
            mainLayout.addView(txtBox, params);
            tableRow.addView(mainLayout);

            // Column-6
            rowid++;
            mainLayout = new LinearLayout(this);
            txtBox = new TextView(this);
            if (i % 2 == 0) {
                txtBox.setBackgroundResource(R.color.white);
            } else {
                txtBox.setBackgroundResource(R.color.LightPink);
            }
            txtBox.setTextColor(Color.BLACK);
            txtBox.setHeight(25);
            txtBox.setPadding(3, 3, 3, 3);
            txtBox.setId((rowid));
            txtBox.setText(ret.Remarks);
            txtBox.setOnClickListener(this);
            txtBox.setOnFocusChangeListener(this);
            mainLayout.addView(txtBox, params);
            tableRow.addView(mainLayout);

            // column -7
            rowid++;
            mainLayout = new LinearLayout(this);
            CheckBox cb = new CheckBox(this);
            if (i % 2 == 0) {
                cb.setBackgroundResource(R.color.white);
            } else {
                cb.setBackgroundResource(R.color.LightPink);
            }

            cb.setTextColor(Color.BLACK);
            cb.setHeight(25);
            cb.setId(rowid);
            // cb.setText("Cell=" + (i + "" + 2));
            cb.setOnClickListener(this);
            cb.setOnFocusChangeListener(this);
            if (ret.enable.equalsIgnoreCase("TRUE")) {
                cb.setChecked(true);
            } else {
                cb.setChecked(false);
            }
            mainLayout.addView(cb, params);
            tableRow.addView(mainLayout);

            tableLayout.addView(tableRow);
        } catch (Exception e) {
            Toast.makeText(this,"error in createtable"+ e.getMessage(), Toast.LENGTH_LONG).show();
        }

    }

    @Override
    public void onClick(View view) {
        int selRow = 0;
        int prevselRow = 0;

        if (view.getId() % COLNO != 0) {
            selRow = (view.getId() / COLNO) + 1;
        } else {
            selRow = (view.getId() / COLNO);
        }
        int firstCol = ((selRow - 1) * COLNO) + 1;

        if (oldView != 0) {
            if (oldView % 7 != 0) {
                prevselRow = (oldView / COLNO) + 1;
            } else {
                prevselRow = (oldView / COLNO);
            }

            int prevfirstCol = ((prevselRow - 1) * COLNO) + 1;

            TextView tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }

            tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol + 1);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }

            tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol + 2);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }

            tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol + 3);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }

            tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol + 4);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }

            tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol + 5);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }
            tv = new TextView(this);
            tv = (TextView) findViewById(prevfirstCol + 6);
            if (prevselRow % 2 == 0) {
                tv.setBackgroundResource(R.color.white);
            } else {
                tv.setBackgroundResource(R.color.LightPink);
            }

        }

        // new Row
        int color = Color.GRAY;

        oldView = view.getId();
        String result = new String();
        TextView tv = new TextView(this);
        tv = (TextView) findViewById(firstCol);
        result = tv.getText().toString();
        oldColor = tv.getDrawingCacheBackgroundColor();
        tv.setBackgroundColor(color);
        tv = new TextView(this);
        tv = (TextView) findViewById(firstCol + 1);
        result += "," + tv.getText().toString();
        tv.setBackgroundColor(color);
        tv = new TextView(this);
        tv = (TextView) findViewById(firstCol + 2);
        result += "," + tv.getText().toString();
        tv.setBackgroundColor(color);

        tv = new TextView(this);
        tv = (TextView) findViewById(firstCol + 3);
        result += "," + tv.getText().toString();
        tv.setBackgroundColor(color);

        tv = new TextView(this);
        tv = (TextView) findViewById(firstCol + 4);
        result += "," + tv.getText().toString();
        tv.setBackgroundColor(color);

        tv = new TextView(this);
        tv = (TextView) findViewById(firstCol + 5);
        result += "," + tv.getText().toString();
        tv.setBackgroundColor(color);

        tv = new TextView(this);
        tv = (TextView) findViewById(firstCol + 6);
        result += "," + tv.getText().toString();
        tv.setBackgroundColor(color);

    }

    @Override
    public void onFocusChange(View view, boolean hasFocus) {
        int selRow = 0;
        int prevselRow = 0;
        if (hasFocus == true) {
            if (view.getId() % COLNO != 0) {
                selRow = (view.getId() / COLNO) + 1;
            } else {
                selRow = (view.getId() / COLNO);
            }
            int firstCol = ((selRow - 1) * COLNO) + 1;

            if (oldView != 0) {
                if (oldView % 7 != 0) {
                    prevselRow = (oldView / COLNO) + 1;
                } else {
                    prevselRow = (oldView / COLNO);
                }

                int prevfirstCol = ((prevselRow - 1) * COLNO) + 1;

                TextView tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }

                tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol + 1);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }

                tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol + 2);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }

                tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol + 3);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }

                tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol + 4);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }

                tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol + 5);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }
                tv = new TextView(this);
                tv = (TextView) findViewById(prevfirstCol + 6);
                if (prevselRow % 2 == 0) {
                    tv.setBackgroundResource(R.color.white);
                } else {
                    tv.setBackgroundResource(R.color.LightPink);
                }

            }

            // new Row
            int color = Color.GRAY;

            oldView = view.getId();
            String result = new String();
            TextView tv = new TextView(this);
            tv = (TextView) findViewById(firstCol);
            result = tv.getText().toString();
            oldColor = tv.getDrawingCacheBackgroundColor();
            tv.setBackgroundColor(color);
            tv = new TextView(this);
            tv = (TextView) findViewById(firstCol + 1);
            result += "," + tv.getText().toString();
            tv.setBackgroundColor(color);
            tv = new TextView(this);
            tv = (TextView) findViewById(firstCol + 2);
            result += "," + tv.getText().toString();
            tv.setBackgroundColor(color);

            tv = new TextView(this);
            tv = (TextView) findViewById(firstCol + 3);
            result += "," + tv.getText().toString();
            tv.setBackgroundColor(color);

            tv = new TextView(this);
            tv = (TextView) findViewById(firstCol + 4);
            result += "," + tv.getText().toString();
            tv.setBackgroundColor(color);

            tv = new TextView(this);
            tv = (TextView) findViewById(firstCol + 5);
            result += "," + tv.getText().toString();
            tv.setBackgroundColor(color);

            tv = new TextView(this);
            tv = (TextView) findViewById(firstCol + 6);
            result += "," + tv.getText().toString();
            tv.setBackgroundColor(color);

            // Toast.makeText(this, result, Toast.LENGTH_LONG).show();

        }
    }

    public void insertRetailer() {

    }

    public void fetchRetailer() {

    }


}

You want to use a CursorAdapter and a ListView to display the data. Here is an example from the Android docs. Binding Data

This will keep your displayed list in sync with the database (if things are added or removed) and you can design your item templates for the rows in XML if you need complex layout.

Try to use ListView. http://developer.android.com/resources/tutorials/views/hello-listview.html

I think you must add rows programatically only.

Check Here...

`

private LinearLayout nameContainer;

private LinearLayout addressContainer;

private LinearLayout parentContainer;

public void onCreate(Bundle savedInstanceState)
{

super.onCreate(savedInstanceState);
createNameContainer();
createAddressContainer();
createParentContainer();
setContentView(parentContainer);
}
private void createNameContainer()
{

nameContainer = new LinearLayout(this);

nameContainer.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT));

nameContainer.setOrientation(LinearLayout.HORIZONTAL);

TextView nameLbl = new TextView(this);

nameLbl.setText("Name: ");

nameContainer.addView(nameLbl);

TextView nameValueLbl = new TextView(this);

nameValueLbl.setText("John Doe");

nameContainer.addView(nameValueLbl);

}

private void createAddressContainer()
{

addressContainer = new LinearLayout(this);

addressContainer.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));

addressContainer.setOrientation(LinearLayout.VERTICAL);

TextView addrLbl = new TextView(this);

addrLbl.setText("Address:");

TextView addrValueLbl = new TextView(this);

addrValueLbl.setText("911 Hollywood Blvd");

addressContainer.addView(addrLbl);

addressContainer.addView(addrValueLbl);

}

private void createParentContainer()

{

parentContainer = new LinearLayout(this);

parentContainer.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));

parentContainer.setOrientation(LinearLayout.VERTICAL);

parentContainer.addView(nameContainer);

parentContainer.addView(addressContainer);

}

}

`

0

上一篇:

:下一篇

更多 问答 相关资讯：

精彩评论

暂无评论...
登录 注册
Qedev.com
验证码 换一张
取 消

    关注公众号

    热门标签

    图文推荐

    Delphi - Custom drawing a message list

    Delphi - Custom drawing a message list
    C++ header-only include pattern

    C++ header-only include pattern
    IE7 Margin Collapses Into Padding

    IE7 Margin Collapses Into Padding
    in CoffeeScript, how can I use a variable as a key in a hash?

    in CoffeeScript, how can I use a variable as a key in a hash?
    Interactive visualization of a graph in python [closed]

    Interactive visualization of a graph in python [closed]
    How to customise PHP MYSQL tables?

    How to customise PHP MYSQL tables?
    High quality, simple random password generator

    High quality, simple random password generator
    Image Recognition ApI in android

    Image Recognition ApI in android

    开发者开发者网给大家分享系统运维,大数据运维,云计算,编程开发技巧,路由交换,运维和开发相关的资讯及技术文章，同时StackOverflow中文社区，知识经验交流分享。

    法律声明：本站内容均为网友上传，网站举办方负责审核和监督，如存在版权或非法内容，欢迎举报，我们将尽快予以删除。邮箱：devze@qq.com

    Copyright © 2018-2020 开发者. All rights reserved. Powered by 开发者ICP备案号: 京ICP备10032868号-9