I finally find out the answer, the setColumnCollapsed() makes the
table layout refreshed, however we need to put it in another
AsyncTask, otherwise it will not work, strange :( .I put the latest
code here, so hope it is helpful for someone. Besides, this is just
workaround, so feel free to post your answer if any...
private class MyTask extends AsyncTask<Void, Void, Void> {
private ProgressDialog progressDialog;
protected void onPreExecute() {
progressDialog =
ProgressDialog.show(ScrollingTableActivity.this,
"", "Loading. Please wait...",
true);
}
@Override
protected Void doInBackground(Void... reportTypes) {
for (int i = 0; i < 500; i++) {
System.out.println(i);
}
return null;
}
@Override
protected void onPostExecute(Void result) {
progressDialog.dismiss();
appendRows(tableHeader, tableBody, tableData);
new My1Task().execute();
}
}
private class My1Task extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... reportTypes) {
return null;
}
@Override
protected void onPostExecute(Void result) {
tableHeader.setColumnCollapsed(0, false);
tableBody.setColumnCollapsed(0, false);
}
}
On Dec 27, 2:03 pm, Zsolt Vasvari <zvasv...@gmail.com> wrote:
> I'd pepper a bunch of Log.v() calls throught the code and see where it
> goes wrong.
>
> On Dec 27, 9:59 am, Binh Nguyen <nguyenthanhbinh1...@gmail.com> wrote:
>
>
>
>
>
>
>
> > Yeah, I got it from AsyncTask usage, so the onLayout() should work,
> > right. btw, I attach some screenshots on Stack Overflow site, so you
> > can see the problem
> > clearly:http://stackoverflow.com/questions/8613465/android-onlayout-and-async...
>
> > Binh Nguyen
> > On Dec 27, 5:35 am, Romain Guy <romain...@android.com> wrote:
>
> > > onPostExecute() is called on the UI thread.
>
> > > On Mon, Dec 26, 2011 at 1:20 AM, Binh Nguyen
>
> > > <nguyenthanhbinh1...@gmail.com> wrote:
> > > > Hi experts,
>
> > > > I need a scrollable table with fixed header, so I followed this great
> > > > blog (http://blog.stylingandroid.com/archives/432) and everything is
> > > > fine.
>
> > > > The idea is using one table for header, one table for content added in
> > > > scrollview, both of them are in a customized LinearLayout. In
> > > > customized LinearLayout, we will overwrite the onLayout() to get the
> > > > max width of each row and set width for each row of both header and
> > > > content table.
>
> > > > Here is the activity and its layout:
>
> > > > package com.stylingandroid.ScrollingTable;
>
> > > > import android.content.Context;
> > > > import android.util.AttributeSet;
> > > > import android.view.View;
> > > > import android.widget.LinearLayout;
> > > > import android.widget.TableLayout;
> > > > import android.widget.TableRow;
>
> > > > public class ScrollingTable extends LinearLayout
> > > > {
> > > > public ScrollingTable( Context context )
> > > > {
> > > > super( context );
> > > > }
> > > > public ScrollingTable( Context context, AttributeSet attrs )
> > > > {
> > > > super( context, attrs );
> > > > }
>
> > > > @Override
> > > > protected void onLayout( boolean changed, int l, int t, int r, int b )
> > > > {
> > > > super.onLayout( changed, l, t, r, b );
>
> > > > TableLayout header = (TableLayout)
> > > > findViewById( R.id.HeaderTable );
> > > > TableLayout body = (TableLayout) findViewById( R.id.BodyTable );
>
> > > > if (body.getChildCount() > 0 ) {
> > > > TableRow bodyRow = (TableRow) body.getChildAt(0);
> > > > TableRow headerRow = (TableRow) header.getChildAt(0);
>
> > > > for ( int cellnum = 0; cellnum < bodyRow.getChildCount();
> > > > cellnum++ ){
> > > > View bodyCell = bodyRow.getChildAt(cellnum);
> > > > View headerCell = headerRow.getChildAt(cellnum);
> > > > int bodyWidth = bodyCell.getWidth();
> > > > int headerWidth = headerCell.getWidth();
> > > > int max = Math.max(bodyWidth, headerWidth);
> > > > TableRow.LayoutParams bodyParams =
> > > > (TableRow.LayoutParams)bodyCell.getLayoutParams();
> > > > bodyParams.width = max;
> > > > TableRow.LayoutParams headerParams =
> > > > (TableRow.LayoutParams)headerCell.getLayoutParams();
> > > > headerParams.width = max;
> > > > }
> > > > }
> > > > }
> > > > }
>
> > > > main.xml
> > > > =======
>
> > > > <?xml version="1.0" encoding="utf-8"?>
> > > > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/
> > > > android"
> > > > android:orientation="vertical"
> > > > android:layout_width="fill_parent"
> > > > android:layout_height="fill_parent">
>
> > > > <com.stylingandroid.ScrollingTable.ScrollingTable
> > > > android:layout_width="match_parent"
> > > > android:orientation="vertical"
> > > > android:layout_height="match_parent">
>
> > > > <TableLayout
> > > > android:layout_height="wrap_content"
> > > > android:layout_width="match_parent"
> > > > android:id="@+id/HeaderTable">
> > > > </TableLayout>
>
> > > > <ScrollView
> > > > android:layout_width="match_parent"
> > > > android:layout_height="wrap_content">
>
> > > > <TableLayout
> > > > android:layout_height="wrap_content"
> > > > android:layout_width="match_parent"
> > > > android:id="@+id/BodyTable">
> > > > </TableLayout>
>
> > > > </ScrollView>
>
> > > > </com.stylingandroid.ScrollingTable.ScrollingTable>
>
> > > > </LinearLayout>
>
> > > > Main activity
> > > > ==========
>
> > > > package com.stylingandroid.ScrollingTable;
>
> > > > import android.app.Activity;
> > > > import android.app.ProgressDialog;
> > > > import android.graphics.Color;
> > > > import android.os.AsyncTask;
> > > > import android.os.Bundle;
> > > > import android.widget.TableLayout;
> > > > import android.widget.TableRow;
>
> > > > import android.widget.TextView;
>
> > > > public class ScrollingTableActivity extends Activity
> > > > {
> > > > private String[][] tableData = {
> > > > {"header11111111111", "header2","header3","header4"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
>
> > > > {"column1", "column1",
>
> > > > "column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"},
> > > > {"column1", "column1","column1","column1"}
> > > > };
> > > > /** Called when the activity is first created. */
> > > > @Override
> > > > public void onCreate( Bundle savedInstanceState )
> > > > {
> > > > super.onCreate( savedInstanceState );
> > > > setContentView( R.layout.main );
> > > > TableLayout tableHeader =
> > > > (TableLayout)findViewById(R.id.HeaderTable);
> > > > TableLayout tableBody =
> > > > (TableLayout)findViewById(R.id.BodyTable);
>
> > > > appendRows(tableHeader, tableBody, tableData);
> > > > }
>
> > > > private void appendRows(TableLayout tableHeader ,TableLayout
> > > > tableContent, String[][] amortization) {
> > > > int rowSize=amortization.length;
> > > > int colSize=(amortization.length > 0)?amortization[0].length:0;
> > > > for(int i=0; i<rowSize; i++) {
> > > > TableRow row1 = new TableRow(this);
>
> > > > for(int j=0; j<colSize; j++) {
> > > > TextView c = new TextView(this);
> > > > c.setText(amortization[i][j]);
> > > > c.setPadding(3, 3, 3, 3);
> > > > if (i == 0) {
> > > > c.setTextColor(Color.BLACK);
> > > > }
> > > > row1.addView(c);
> > > > }
>
> > > > if (i == 0) {
> > > > row1.setBackgroundColor(Color.LTGRAY);
> > > > tableHeader.addView(row1, new TableLayout.LayoutParams());
> > > > } else {
> > > > tableContent.addView(row1, new
> > > > TableLayout.LayoutParams());
> > > > }
> > > > }
> > > > }
>
> > > > The above code work perfectly, however, when I use AnysnTask to get
> > > > data from server and add data to table later, the onLayout() in my
> > > > custom view doesn't work anymore. I simulate getting data by log out
> > > > some number:
>
> > > > public void onCreate( Bundle savedInstanceState )
> > > > {
> > > > super.onCreate( savedInstanceState );
> > > > setContentView( R.layout.main );
>
> > > > new MyTask().execute();
> > > > }
>
> > > > private class MyTask extends AsyncTask<Void, Void, Void> {
>
> > > > private ProgressDialog progressDialog;
> > > > protected void onPreExecute() {
> > > > progressDialog =
> > > > ProgressDialog.show(ScrollingTableActivity.this,
> > > > "", "Loading. Please wait...",
> > > > true);
> > > > }
> > > > @Override
> > > > protected Void doInBackground(Void... reportTypes) {
> > > > for (int i = 0; i < 500; i++) {
> > > > System.out.println(i);
> > > > }
> > > > return null;
> > > > }
> > > > @Override
> > > > protected void onPostExecute(Void result) {
> > > > progressDialog.dismiss();
> > > > TableLayout tableHeader =
> > > > (TableLayout)findViewById(R.id.HeaderTable);
> > > > TableLayout tableBody =
> > > > (TableLayout)findViewById(R.id.BodyTable);
>
> > > > appendRows(tableHeader, tableBody, tableData);
> > > > }
>
> > > > }
>
> > > > So the onLayout() only work when I call appendRows() from main UI
> > > > thread by putting it in onCreate() method. If I call from another
> > > > thread (in onPostExecute() of AsyncTask), the onLayout() is called (I
> > > > checked it by create some logs) but it doesn't effect to the GUI. I
> > > > tried with invalidate(), forceLayout(), requestLayout() but doesn't
> > > > change anything.
>
> > > > I think we need to call a method to make the GUI refresh but don't
> > > > know what it is, I have searched and tried a lot of ways in 2 days but
> > > > got nothing, so it will be very appreciated if you can give any idea
> > > > about this.
>
> > > > Many thanks,
> > > > Binh Nguyen
>
> ...
>
> read more »
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