How to add rows dynamically into table layout

Question

I have certain data in sqllite and it update every time whenever  I click on save button and I want to show the data into a table layout for adding more rows for updated data   I have certain code but it shows only the updated data replacing previous data and I want to add more rows as the data updated    I know this is only to add one row into table layout but how can I add more rows   TableLayout tl  TableLayout findViewById R id maintable       TableRow tr1   new TableRow this   tr1 setLayoutParams new LayoutParams  LayoutParams FILL PARENT LayoutParams WRAP CONTENT    TextView textview   new TextView this   textview setText data     textview getTextColors R color   textview setTextColor Color YELLOW   tr1 addView textview   tl addView tr1  new TableLayout LayoutParams LayoutParams FILL PARENT  LayoutParams WRAP CONTENT

User · Answer

Solution 1   Set your TableLayout tl as class member variable  only call TableLayout tl  TableLayout findViewById R id maintable   when you initiate the class  When button clicked use tl directly  eg  tl addView row   don t call FindViewById anymore   So the next new row wouldn t replace the previous new row   Solution 2  Everytime after button click save your updated data into an array  and then re-render your whole table layout by loop through the array

User · Answer

The way you have added a row into the table layout you can add multiple TableRow instances into your tableLayout object  tl addView row1   tl addView row2     etc

User · Answer

You might be better off using a ListView with a CursorAdapter  or SimpleCursorAdapter    These are built to show rows from a sqlite database and allow refreshing with minimal programming on your part   Edit - here is a tutorial involving SimpleCursorAdapter and ListView including sample code

User · Answer

You are doing it right  every time you need to add a row  simply so new TableRow    etc  It might be easier for you to inflate the new row from XML though

User · Answer

Here s technique I figured out after a bit of trial and error that allows you to preserve your XML styles and avoid the issues of using a  lt merge  gt   i e  inflate   requires a merge to attach to root  and returns the root node   No runtime new TableRow  s or new TextView  s required   Code  Note  Here CheckBalanceActivity is some sample Activity class  TableLayout table    TableLayout CheckBalanceActivity this findViewById R id attrib table   for ResourceBalance b   xmlDoc balance info           Inflate your row  template  and fill out the fields      TableRow row    TableRow LayoutInflater from CheckBalanceActivity this  inflate R layout attrib row  null         TextView row findViewById R id attrib name   setText b NAME         TextView row findViewById R id attrib value   setText b VALUE       table addView row     table requestLayout           Not sure if this is needed    attrib row xml   lt  xml version  1 0  encoding  utf-8   gt   lt TableRow style   style PlanAttribute   xmlns android  http   schemas android com apk res android  gt       lt TextView         style   style PlanAttributeText          android id    id attrib name          android textStyle  bold   gt       lt TextView         style   style PlanAttributeText          android id    id attrib value          android gravity  right          android textStyle  normal   gt   lt  TableRow gt

[android] How to add rows dynamically into table layout

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