android - How to get a TableLayout with 2 columns of equal width -

-

why doesn't table have equal column widths? here's complete layout: first table, 2 buttons in linearlayout outside of table, divided equally.

<?xml version="1.0" encoding="utf-8"?> <scrollview xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="wrap_content" >      <linearlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:orientation="vertical" >          <tablelayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:padding="4dp" >              <tablerow                 android:layout_margintop="2dp"                 android:gravity="center_vertical" >                 <textview                     style="@style/label.plain"                     android:layout_width="match_parent"                     android:text="@string/caption" />                  <edittext                     android:background="#00ff00"                     android:layout_width="match_parent"                     android:layout_weight="1"                     android:layout_height="@dimen/button_height"                     android:inputtype="numberdecimal"                     android:selectallonfocus="true"                     android:textsize="@dimen/spinner_text" />             </tablerow>         </tablelayout>          <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_margintop="2dp"             android:layout_marginbottom="3dp"             android:gravity="center_vertical"             android:orientation="horizontal" >              <button                 android:id="@+id/btnok"                 style="@style/button.plain.fill"                 android:layout_weight="1"                 android:text="@string/als_ok" />              <button                 android:id="@+id/btnclose"                 style="@style/button.plain.fill"                 android:layout_weight="1"                 android:text="@string/cancel" />         </linearlayout>     </linearlayout>  </scrollview>

and here's how looks (one column painted visibility):

enter image description here

i use linear layout here, want understand logic behind tablelayout.

you can acquire in different ways,

like using 

android:stretchcolumns="*"

in tablelayout or 

android:weightsum="1"

in tablerow , 

 android:layout_width="0dp"   android:layout_height="wrap_content"

in , views in tablerow.

here example 

<?xml version="1.0" encoding="utf-8"?>            <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"         android:orientation="vertical" android:layout_width="match_parent"         android:layout_height="match_parent">         <tablelayout             android:id="@+id/tbltop10list"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:layout_centerinparent="true"             android:layout_margintop="23dp"             android:stretchcolumns="*" >              <tablerow                 android:id="@+id/tablerow1"                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:weightsum="1" >                  <textview                     android:id="@+id/tvtopname"                     android:layout_width="0dp"                     android:layout_height="wrap_content"                     android:paddingleft="8dp"                     android:text="hello there"                     android:textcolor="#fff000"                     android:layout_column="0"                     />                  <textview                     android:id="@+id/tvtopnumber"                     android:paddingleft="4dp"                     android:layout_width="0dp"                     android:layout_height="wrap_content"                     android:textcolor="#fff000"                     android:text="hello there "                     android:layout_column="1"                     />             </tablerow>         </tablelayout>      </linearlayout>

** more info table layout , it's property please check nice article

http://www.informit.com/articles/article.aspx?p=2007353&seqnum=7


Popular posts from this blog

How to calculate SNR of signals in MATLAB? -

-
i've encountered simple, yet fundamental problem on calculating snr: there several signals : s1 = original , pure clean signal without noise. n1 = white gaussian noise going added s1. s2 = s1 + n1 (the noisy signal before performing noise-reduction algorithm) s3 = noise-reduced signal (after performing noise reduction algorithm) n2 = s3 - s1 (the amount of noise after performing noise-reduction algorithm) now want compare snr before , after performing noise-reduction algorithm. which signals should consider snr_before!? s1/n1 or s2/n1 ? which signals should consider snr_after!? s3/n1 or s3/n2 ? which commands or functions should use in matlab in order compute snr_before , snr_after? thanks billion putting time on helping me. what know calculating snr before : snrbeforenoise = mean( signal .^ 2 ) / mean( noise .^ 2 ); and snr after : residual_noise = signal - noise_reduced_signal; snr_after = mean( signal .^ 2 ) / mean( residual_noise .^ 2...
Read more

c# - Attempting to upload to FTP: System.Net.WebException: System error -

-
i have api takes in xml , uploads files based on information in xml. uploads on schedule (also xml), , have tested surrounding , know works. i getting error 40% of time on first file attempt upload in each time cycle (time cycle = 45 minutes files, 30 minutes others). here code upload: try { loggerftp.log("uploading file: " + filename, false); // create request. ftpwebrequest request = (ftpwebrequest)webrequest.create(appsettingsftp.ftpurl + @"/" + filename); request.method = webrequestmethods.ftp.uploadfile; request.timeout = 6000000; //set 100 minutes //request.timeout = -1; //set infinite // add login credentials. request.credentials = new networkcredential(appsettingsftp.ftplogin, appsettingsftp.ftppassword); // grab file contents. streamreader sourcestream = new streamreader(appsettingsftp.uploadfiledirectory + filename); byte[] filecontents = encoding.utf8.getbytes(sourcestream.readtoend()); sourcest...
Read more

ios - UISlider customization: how to properly add shadow to custom knob image -

-
Image
i need place custom knob image shadow uislider. far have image of 38x38, of there region defines shadow of knob. now while using image, when slide knob extreme ends actual knob not able cover end points, hence end points visible under transparent region of knob image this code using customize uislider uiimage *slidebtimg = [uiimage imagenamed:sliderknobimg]; [self.ratingslider setthumbimage:slidebtimg forstate:uicontrolstatenormal]; [self.ratingslider setthumbimage:slidebtimg forstate:uicontrolstatehighlighted]; how can implement custom knob shadow beneath it, covering end points?? look inside uislider.h , there methods let customize slider knob , track needed. (ios 2.0 , above) // lets subclass lay out track , thumb needed - (cgrect)minimumvalueimagerectforbounds:(cgrect)bounds; - (cgrect)maximumvalueimagerectforbounds:(cgrect)bounds; - (cgrect)trackrectforbounds:(cgrect)bounds; - (cgrect)thumbrectforbounds:(cgrect)bounds trackrect:(cgrect)rect value:...
Read more