I am dynamically adding rows with two columns to a table. One of the columns holds text that will spread across multiple lines. I've added the weight on the layout parameters for the textview so it no longer clipps outside of the screen, but it seems to be restricted to two and a half lines showing in the table, regardless of how long the multiline text is. The table is just defined in xml and everything else is done programmatically.
TableRow.LayoutParams rowParams = new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, TableRow.LayoutParams.WRAP_CONTENT);
TableRow.LayoutParams paramsStar = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT);
paramsStar.setMargins(0,0,40,0);
TableRow.LayoutParams paramsText = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.FILL_PARENT, (float)1.0);
TableRow tr = new TableRow(this);
tr.setLayoutParams(rowParams);
TextView viewStar = new TextView(this);
viewStar.setTextSize((float) 30.0);
viewStar.setText("*");
viewStar.setLayoutParams(paramsStar);
viewStar.setTypeface(Typeface.DEFAULT_BOLD, 2);
TextView viewText = new TextView(this);
viewText.setText("Long multiline text piece"); //<--- Here the long text goes
viewText.setLayoutParams(paramsText);
tr.addView(viewStar);
tr.addView(viewText);
table.addView(tr, rowParams);
How do i fix this vertical clipping?
Screenshot of the problem below:
Here is the link showing the problem
I've found the root of the problem. The first column values textsize made the multiline text clip. If i reduce the textsize, the problem disappears.
I cant explain why though.
Another answer I'll drop in here: Android measures table row height in a very non-intuitive way. If you have 2 TextView(s), one for each column of a TableRow, you need to ensure that whatever top and bottom padding you've set for the first TextView is set identically for the 2nd TextView or you will get strange things like content clipping and weird positioning of the 2nd TextView.
Related
How to implement below image in Android.
In this view the time row should static, but table row are dynamic and each row the cell width is depend on time.
Here green box are cells.
http://i.stack.imgur.com/bBtsJ.jpg
If I understand correctly, you want to change the blue and green boxes dynamically and the rest is static. So you want to change the column span programmatically. To do this, first find the View you want to change using TextView tv = (TextView) findViewById(R.id.some_sensible_id); and then call
TableRow.LayoutParams params = (TableRow.LayoutParams) tv.getLayoutParams();
params.span = columnsToSpan;
tv.setLayoutParams(params);
Where columnsToSpan is how many columns the View should occupy.
Alright, I have searched for its solution But unable to find it. The Question is simple. There is a TableLayout in Android, I am adding few Rows in it. In the Last Row, I am adding a button. Now, the problem is the size of the button is not constant. What I mean is that, it fills the column. If the above data takes longer width of the column, the width of the button, accordingly increases. I have tried LayoutParams, setHeight, setWidth function too, but that didn't help me..
I would appreciate if someone would help me out.
TableLayout table=new TableLayout(this);
TableRow tableRow=new TableRow(this);
Button button=new Button(this);
TableRow.LayoutParams trParams = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT);
Button.setLayoutParams(trParams);
tableRow.AddView(button);
table.addView(tableRow);
You have called setLayoutParams on Button not button.
Names are case sensitive. Button is the class while button is your object.
Try:
TableLayout table=new TableLayout(this);
TableRow tableRow=new TableRow(this);
Button button=new Button(this);
TableRow.LayoutParams trParams = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT);
tableRow.AddView(button, trParams);
table.addView(tableRow);
However this will not fix the main issue. According to the Reference docs all children of a TableRow are forced to MATCH_PARENT for their width.
You could try nesting your button inside another layout. For example put your button inside a horizontal LinearLayout, then put the LinearLayout into your TableRow.
I'm preparing layout for list of countries shown in categories. I have problem formatting my layout. I want category titles (bigger ones) to be "100% width", so far they are WRAP_CONTENT formatted (blue colour is for testing purposes):
I used the following code:
TableLayout table = new TableLayout(this);
table.setPadding(24, 14, 24, 24);
table.setStretchAllColumns(true);
table.setShrinkAllColumns(true);
// ...
TableRow titleRow = new TableRow(this);
titleRow.setGravity(Gravity.CENTER_HORIZONTAL);
titleRow.setPadding(0, 18, 0, 8);
titleRow.setBackgroundColor(Color.BLUE);
TextView title = new TextView(this);
title.setText("TEST TITLE"); //title.setText(currentContinent);
title.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
title.setGravity(Gravity.CENTER);
title.setBackgroundColor(Color.DKGRAY);
title.setPadding(0, 6, 0, 8);
titleRow.addView(title);
table.addView(titleRow, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
I changed last part of code to make TextView filling parent (TableRow):
titleRow.addView(title, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
table.addView(titleRow, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
But then my TextView dissapears!
Debug view http://www.wysyper.pl/u/4417tahfcvnb.jpeg
What can cause the problem?
I trust that you have a good reason not to use XML layouts for this, which should make your life a lot less code-filled and eliminate some potential bugs.
Have you tried it using instances of the proper LayoutParams subclass for your parent views? Each view added to a TableLayout should use instances of TableLayout.LayoutParams. Likewise TableRow expects instances of TableRow.LayoutParams.
If that doesn't fix it, I recommend building the layout in XML instead of code.
I am having a little bit of trouble making the table look like I intend to.
These are a few questions, but since they all refer to the picture below and the details I provide I thought they should all be in a single post.
Here is what I achieved so far:
The header row contains one element of type Button.
TableRow.LayoutParams params = new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT);
Button bt = new Button(getContext());
bt.setText("Column1");
mHeader.addView(bt, params);
mHeader.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
addView(mHeader);
The rest of the table is poulated like this:
(Messagerow extends TableRow and has a TextView member)
for(int i = 0; i < 100; i++) {
MessageRow mr = new MessageRow(getContext());
// stuff to set the TexView text and color
mr.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
this.addView(mr);
}
1. How can I make the header row height be more like the rows?
2. How can I make the button occupy the full width of the row?
If the table is empty, no text rows just header, then the button matches the row width. As soon as I add a row of text, the column width is adapted but the button width is not.
3. How can I make the row fill the screen width? (MATCH_PARENT does not do it)
4. How can I draw a thin line between the table rows?
I tried to override the onDraw() function on MessageRow, but it never gets called, not even once.
Don't get me wrong. I am not asking that you do my work for me. These are issues I tried to solve by myself and googled them and read similar posts, but did not find an answer.Note: I find that UI design in Javascript for Android lacks clear control and clear documentation over all these little details.
Edit
This is how I create the table:
TableLayout mTable = new TableLayout(this);
HorizontalScrollView hview = (HorizontalScrollView) findViewById(R.id.hscroll);
populate(mTable);
mTable.setLayoutParams(new TableLayout.LayoutParams( TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT));
mTable.setBackgroundColor(Color.WHITE);
hview.addView(mTable);
How can I make the header row height be more like the rows?
Using the default Button there isn't much to do. The Button uses a nine-patch image that has some space between the button's text and the borders that you see. You could use a smaller font but that you'll probably look ugly. Another thing to try is using your own background for the Button and get rid of the default extra space(of the default nine-patch image) so the final height is near the height of the text from the TextViews. Or try to enforce a standard height for all rows using a fixed value.
How can I make the button occupy the full width of the row?
I think that you have more then one TextView in MessageRow so when you add the Button it moves to the first column(corresponding to the first TextView). If this is the case, make your Button span across the number of columns representing the number of TextViews in MessageRow:
TableRow.LayoutParams params = new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT);
params.span = 3; // if you have 3 `TextView` in the MessageRow
Button bt = new Button(getContext());
bt.setText("Column1");
mHeader.addView(bt, params);
If this is not the case add more details.
How can I make the row fill the screen width? (MATCH_PARENT does not do it)
As I said on one of your previous questions, I don't know why that happens(but I gave you some solutions there to overcome this issue). Also:
mHeader and the other MessageRow are children of a Tablelayout and the correct LayoutParams to use on them is the LayoutParams of the parent: TableLayout.LayoutParams and not TableRow.LayoutParams.
You add some TextView in the MessageRow(from what I seen in your previous questions), add those child views with TableRow.LayoutParams to MessageRow.
You use only WRAP_CONTENT for your LayoutParams everywhere in your code, you might want to set the width(the first parameter in the constructor) to FILL_PARENT/MATCH_PARENT
How can I draw a thin line between the table rows?
You could use a simple View that will act as a separator:
for(int i = 0; i < 100; i++) {
MessageRow mr = new MessageRow(getContext());
// stuff to set the TexView text and color
mr.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.FILL_PARENT, TableLayout.LayoutParams.WRAP_CONTENT));
this.addView(mr);
View separator = new View(getContext());
separator.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.FILL_PARENT, 3)));
separator.setBackgroundColor(Color.RED);
this.addView(separator);
}
Because you have 100 rows you could try to set a drawable with a separator line as the background for theTableRow(header and MessageRow) instead of the above method that adds another 100 Views to the layout.
Extra Note:
You have a lot of views to add to a single activity layout, you are talking about 100 rows, and if your MessageRow is more complex than a simple TextView(and I think it is) you could get in some performances problems. I suggest you take a look at the wonderful ListView widget.
Don't have a programming environment here, but I'll try and answer some of your questions.
The reason your header row (button) is taller than your test based rows is because the button requires more space and the row accomodates it. The default button has padding on both the top/bottom of the text. I think your best option is to create your own button, which gives you the additional benefit of being able to control the look and feel. It seems like other people have had this issue before: Can't get rid of bottom padding on button
Your button is set to wrap_content which means it won't be any bigger than it needs to be (It will grow/shrink so it can fit the text "Column1" or whatever you put there). Instead of making the Button WRAP, I suspect you'll need to make it FILL_PARENT.
It's not your Table Row that needs to fill the screen width, it's your table that needs to fill the screen. Wherever you define your table, it's probably set to WRAP_CONTENT for the Horizontal dimension. Set it to FILL_PARENT and your table should expand to the full width of whatever it's container is (In this case, it should expand the full width of the screen)
There are probably several different ways you can do this. One method I used somewhat recently is to utilize the View tag which essentially looks like a horizontal bar across the screen. Below is a link to how to implement it.
http://sonnygill.net/android/horizontal-rule/
I am using Tablerow+TextView to make a simple view for blog posts and their replies. In each TableRow I put a TextView in. Now I have two issues:
The text which is longer than the screen won't automatically wrap up to be multi-line. Is it by design of TableRow? I've already set tr_content.setSingleLine(false); [update] This has been addressed, I think I should change Fill_parent to be Wrap_content in textView.tr_author_time.setLayoutParams(new LayoutParams(
LayoutParams.**WRAP_CONTENT**,
LayoutParams.WRAP_CONTENT));
The Table won't scroll like ListView. My rows are more than the screen size. I expect the table could be scrolled down for viewing just like ListView. Is that possible?
Here is my code:
TableLayout tl = (TableLayout) findViewById(R.id.article_content_table);
TextView tr_title = new TextView(this);
TextView tr_author_time = new TextView(this);
TextView tr_content = new TextView(this);
TableRow tr = new TableRow(this);
for(int i = 0; i < BlogPost.size(); i++){
try{
// add the author, time
tr = new TableRow(this);
/////////////////add author+time row
BlogPost article = mBlogPost.get(i);
tr_author_time = new TextView(this);
tr_author_time.setText(article.author+"("+
article.post_time+")");
tr_author_time.setTextColor(getResources().getColor(R.color.black));
tr_author_time.setGravity(0x03);
tr_author_time.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
tr.addView(tr_author_time);
tl.addView(tr,new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
////////////////////// then add content row
tr = new TableRow(this);
tr_content = new TextView(this);
tr_content.setText(article.content);
tr_content.setSingleLine(false);
tr_content.setGravity(0x03);
tr_content.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
tr.addView(tr_content);
tr.setBackgroundResource(R.color.white);
tl.addView(tr,new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
A more appropriate thing to do for wrapping items would have been to add android:shrinkColumns="*" or android:shrinkColumns="1" to the TableLayout, this would probably have fixed the wrapping issue.
For Details
This isn't really a complete answer, but it really seems like you're doing this the hard way.
Instead of constructing your TableRows manually, you should set them up in xml like this:
tablerow.xml:
<TableRow xmlns:android="http://schemas.android.com/apk/res/android">
<TextView android:id="#+id/content"
android:singleLine="false"
android:textAppearance="#style/someappearance" />
</TableRow>
Prior to your loop, get a reference to a LayoutInflater:
LayoutInflater inflater = getLayoutInflater();
Then, inside your loop, create an instance of tablerow using the LayoutInflater:
TableRow row = (TableRow)inflater.inflate(R.layout.tablerow, tl, false);
TextView content = (TextView)row.findViewById(R.id.content);
content.setText("this is the content");
tl.addView(row);
This will allow you to set your layout, appearance, layout params in xml making it much easier to read and debug.
For the scrolling problem, you'll need to add your TableLayout to a ScrollView. Something like this in your xml:
<ScrollView>
<TableLayout android:id="#+id/arcitle_content_table" />
</ScrollView>
To wrap text in table rows:
By default, TableLayout rows fit the width of their content, no matter it goes over the screen bounds. To get the wider-than-screen text cells to wrap to multi-line, use android:shrinkColumns attribute on TableLayout.
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:shrinkColumns="*" />
android:shrinkColumns is zero-based index of the columns to shrink. It removes unnecessary extra space from a column and shrinks it :
android:shrinkColumns="*" shrinks all columns
android:shrinkColumns="0" shrinks first column
android:shrinkColumns="1,2" shrinks the second and third columns
android:stretchColumns does the opposite. It stretches a column to the maximum available width.
Both "shrink" and "stretch" consider all rows of the table to compute space.
To scroll down a TableLayout:
If your TableLayout is higher than the screen, move it in a ScrollView.