I create tablerows and checkboxes dynamically with a code like this:
for (Iterator i = users.iterator(); i.hasNext();) {
Users p = (Users) i.next();
/** Create a TableRow dynamically **/
tr = new TableRow(this);
/** Creating a Checkbox to add to the row **/
CheckBox cb = new CheckBox(this);
cb.setText(p.getEan());
LinearLayout Ll1 = new LinearLayout(this);
Ll1.addView(cb);
System.out.println(j);
tr.addView((View)Ll1); // Adding CheckBox to tablerow.
/** Creating a TextView to add to the row **/
label = new TextView(this);
label.setText(p.getName());
label.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
label.setPadding(5, 5, 5, 5);
label.setBackgroundColor(Color.GRAY);
LinearLayout Ll = new LinearLayout(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(5, 2, 2, 2);
Ll.addView(label,params);
tr.addView((View)Ll); // Adding textView to tablerow.
// Add the TableRow to the TableLayout
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
After its created the user can check or uncheck.
With the check, I need to do run another command for every checkbox.
My problem is, how do I use the checkboxes? How i can "speak" with so i can work with it?
Call generateViewId() (or leave setId(i)) and use generated id in setId() for your programatically generated checkboxes. Save id's locally during your activity life and use this id's in same way as static id's from R. in setOnCheckedChangeListener.
You gave the rows and checkboxes the same id's. Don't give the rows id's. Or different ones.
You can place following code in on check change listeners.
LinearLayout my_layout = (LinearLayout)findViewById(R.id.my_layout);
for (int i = 0; i < Array_Count; i++)
{
CheckBox checkBox = (CheckBox)my_layout.findViewById(i);
if ( checkBox == null )
continue;
Toast.makeText(context, checkBox.getText(), Toast.LENGTH_SHORT).show();
checkBox.setText("my id is: " + i);
}
Related
i created a table row dynamically, That contains three textviews.now i want to get the value of three textview's value on click on tablerow(tr).means i want to get the companyTV,valueTV & YearTV's value.
Thanks.
for (int i = 0; i < match.length; i++) {
/** Create a TableRow dynamically **/
tr.setBackground(getResources().getDrawable(R.drawable.tv_bg));
tr = new TableRow(this);
tr.setLayoutParams(new TableRow.LayoutParams(
TableRow.LayoutParams.FILL_PARENT,
TableRow.LayoutParams.FILL_PARENT));
/** Creating a TextView to add to the row **/
companyTV = new TextView(this);
companyTV.setText(match[i]);
companyTV.isClickable();
companyTV.setTextColor(Color.RED);
companyTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
companyTV.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
companyTV.setPadding(5, 5, 5, 5);
tr.addView(companyTV); // Adding textView to tablerow.
/** Creating another textview **/
valueTV = new TextView(this);
valueTV.setText(kanr[i]);
valueTV.isClickable();
valueTV.setTextColor(Color.RED);
valueTV.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
valueTV.setPadding(5, 5, 5, 5);
valueTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
tr.addView(valueTV); // Adding textView to tablerow.
YearTV = new TextView(this);
YearTV.setText(ort[i]);
YearTV.setTextColor(Color.RED);
YearTV.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
YearTV.setPadding(5, 5, 5, 5);
YearTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
tr.addView(YearTV); // Adding textView to tablerow.
// Add the TableRow to the TableLayout
tl.addView(tr, new TableLayout.LayoutParams(
TableRow.LayoutParams.FILL_PARENT,
TableRow.LayoutParams.WRAP_CONTENT));
}
First you have one error in your code when you are setting background of table row before you have created it. You should first create new table row, and then set its background:
for (int i = 0; i < match.length; i++) {
/** Create a TableRow dynamically **/
tr = new TableRow(this);
tr.setBackground(getResources().getDrawable(R.drawable.tv_bg));
You can access table row children views by index in your OnClickListener
tr.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
TableRow tr = (TableRow)v;
TextView companyTV, valueTV, yearTV;
String company, value, year;
companyTV = (TextView) tr.getChildAt(0);
valueTV = (TextView) tr.getChildAt(1);
yearTV = (TextView) tr.getChildAt(2);
company = companyTV.getText().toString();
value = valueTV.getText().toString();
year = yearTV.getText().toString();
}
});
If you want to track which table row is currently selected, you can create global variable for your activity
TableRow selectedTR;
and then set that inside OnClickListener
selectedTR = (TableRow)v;
When you use that selectedTR variable make sure that you check it for null value in case there is no selection made yet.
Im trying to create two table layouts through activity..
I already have one table layout but how to set through activity?
I know to do it through xml but want to do it programatically..
Please Help
Check this answer and another example here
Just like in xml, you will create a TableLayout, provide params and add rows with your own UI in it.
Take one linear layout(or relative layout) in in your xml get it reference by findViewById() in onCreate() method of your activity.after that create table dynamically and add it to the linear layout.I create a method to do so . ex-
LinearLayout linear= (LinearLayout ) findViewById(R.id.linear);
//call method to add the tablelayout.
linear.addView(createtable(3,5));
private TableLayout createtable(int requiredcolumn, int requiredrow) {
TableLayout.LayoutParams tableParams = new TableLayout.LayoutParams(
TableLayout.LayoutParams.MATCH_PARENT,
TableLayout.LayoutParams.WRAP_CONTENT, 1f);
TableLayout.LayoutParams rowParams = new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT, 1f);
//for border
rowParams.setMargins(2, 2, 2, 2);
TableRow.LayoutParams itemParams = new TableRow.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT, 1f);
TableLayout tableLayout = new TableLayout(MainActivity.this);
tableLayout.setLayoutParams(tableParams);
tableLayout.setBackgroundColor(Color.WHITE);
for (int row = 0; row < requiredrow; row++) {
TableRow tableRow = new TableRow(MainActivity.this);
tableRow.setLayoutParams(rowParams);
for (int column = 0; column < requiredcolumn; column++) {
Random color = new Random();
int randomColor = Color.argb(255, color.nextInt(256),
color.nextInt(256), color.nextInt(256));
TextView textView = new TextView(MainActivity.this);
textView.setLayoutParams(itemParams);
textView.setBackgroundColor(randomColor);
tableRow.addView(textView);
}
tableLayout.addView(tableRow);
}
return tableLayout;
}
I want to implement a TableLayout with pagination, showing records of 10 at page 1 and then next 10 on page 2 and so on... I'm using Table Layout but I'm not getting the required result. Using the tutorial, the table just grows horizontally not vertically. How do I change it so that it also grows vertically and then when record size is greater then 10 then shift to next page?
The code:
public class Sample extends Activity {
String companies[] = {"Google","Windows","iPhone","Nokia","Samsung",
"Google","Windows","iPhone","Nokia","Samsung",
"Google","Windows","iPhone","Nokia","Samsung","Google","Windows","iPhone","Nokia","Samsung",
"Google","Windows","iPhone","Nokia","Samsung",
"Google","Windows","iPhone","Nokia","Samsung"};
String os[] = {"Android","Mango","iOS","Symbian","Bada",
"Android","Mango","iOS","Symbian","Bada",
"Android","Mango","iOS","Symbian","Bada","Android","Mango","iOS","Symbian","Bada",
"Android","Mango","iOS","Symbian","Bada",
"Android","Mango","iOS","Symbian","Bada"};
TextView companyTV,valueTV,deviceTv,actionTv,dateTv,timeTv,creditTv;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// creates the Pagination Layout
PaginationLayout paginationLayout = new PaginationLayout(this);
paginationLayout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
// creates content only for sample
TableLayout table = new TableLayout(this);
//table.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
TableRow row = new TableRow(this);
row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
table.addView(row);
TableRow row2 = new TableRow(this);
row2.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
table.addView(row2);
for (int i=0;i<companies.length;i++)
{
deviceTv = new TextView(this);
deviceTv.setText(companies[i]);
deviceTv.setTextColor(Color.RED);
deviceTv.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
deviceTv.setPadding(5, 5, 5, 5);
row2.addView(deviceTv);
actionTv = new TextView(this);
actionTv.setText(os[i]);
actionTv.setTextColor(Color.GREEN);
actionTv.setPadding(5, 5, 5, 5);
actionTv.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
row2.addView(actionTv); // Adding textView to tablerow.
}
/* for(int i = 0; i< 50;i++){
Button button = new Button(this);
button.setText("Button " + i);
if (i%2==0) {
row.addView(button);
} else {
row2.addView(button);
}
}*/
// add the content in pagination
paginationLayout.addView(table);
// set pagination layout
setContentView(paginationLayout);
}
I have already using Table Layout but not getting my required result
using this tutorial it just grow horizontally not vertically
For the code on github it appears that using addView on the PaginationLayout adds that view to a HorizontalScrollView. As in your code you're creating a single Tablelayout to which you add rows, it's normal that your content grows vertically.
You'll most likely need to insert on your own the pages, with something like this:
// creates the Pagination Layout
PaginationLayout paginationLayout = new PaginationLayout(this);
LinearLayout wrapper = new Linearlayout(this);
paginationLayout.addView(wrapper);
// now create a TableLayout, if the content is bigger then your intended number of rows
// then insert another Tablelayout and so on
TableLayout table = new TableLayout(this);
//table.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
TableRow row = new TableRow(this);
row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
table.addView(row);
TableRow row2 = new TableRow(this);
row2.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
table.addView(row2);
wrapper.addView(table); // it will probably don't look good if you don't
// also setup the proper width with LayoutParams
If you continue to add TableRows and you see that you've added 10 rows to table then create a new TableLayout and add that to the wrapper LinearLayout.
I would advise you to drop that library and implement your own pagination. If you don't what direct interaction from your user(through touching) then it's quite simple to setup a ViewFlipper(with two views, two pages through which you'll continue to flip) with two buttons at the bottom to control the pagination. If you also want touch interaction, then use a ViewPager(with a bit more work to do).
I am creating table rows programmatically and i want to put a view that i created before in a row. Is there any way to do it?
for ( current = 0; current < rapor1.length; current++)
{
TableRow tr = new TableRow(this);
tr.setId(100+current);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
TextView f1 = new TextView(this);
f1.setId(200+current);
f1.setText(rapor1[current]);
f1.setTextColor(Color.BLACK);
f1.setWidth(100);
tr.addView(f1);
DrawView dv = new DrawView(this);
tr.addView(dv);
it should be working but something is wrong.
I think it may helps. Just change this string:
tr.setLayoutParams(new TableRow.LayoutParams(
TableRow.LayoutParams.FILL_PARENT,
TableRow.LayoutParams.WRAP_CONTENT));
And of course you need to set LayoutParams to any view that you want to show on your screen
I have to display a grid of pictures taken from the database. Depending on the screen size of the user, I want to show more or less pictures.
1) How to change the number of pictures shown dynamically according to the number of pics from the database?
1a) Which layout would be adequate?
2) If there are more pictures than that can fit on a single screen, obviously it has to be scrolled. How do I define a page wise scrolling instead of scrolling little by little, meaning after each scrolling, next page will have all new members (just like we scroll Applications in Android)
At the moment, I have a TabHost layout for the main Activity and a LinearLayout for the grid type display activity.
I am using API version 10, so GridLayout is not available.
Any suggestions would be very helpful. Thanks in advance.
1) How to change the number of pictures shown dynamically according to the number of pics from the database?
As far as this part is concerned use a for loop based on the number of pics available in your database, the only thing you need is to know the number of elements present in your database, which you then use as I have used numberOfElements here
for(int i = 1; i <= numberOfElements ; i++) {
LinearLayout lHor = new LinearLayout(this);
lHor.setOrientation(LinearLayout.HORIZONTAL);
//lHor.setBackgroundColor(Color.rgb(238, 233, 191));
// Text View
TextView tv = new TextView(this);
tv.setText("FAULT "+i);
tv.setTextSize(20);
// tv.setGravity(Gravity.CENTER);
tv.setTextColor(Color.rgb(255,255,255));
tv.setPadding(12, 12, 12, 12);
tv.setId(i);
tv.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
lHor.addView(tv); // Adding the TextView to the LinearLayout
//CheckBox
CheckBox cb = new CheckBox(this);
cb.setId(i);
cb.setTag("CheckBox");
cb.setClickable(false);
// cb.setChecked(true);
cb.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
cb.setGravity(Gravity.CENTER);
checkBoxes.add(cb);
lHor.addView(cb);
l.addView(lHor);
}
You might already know how to get the number of elements in your database, if not I used this
// Method 3: Getting total number of entries present in the database
public int getTotalNumberOfEntries() {
String[] columns = new String[]{ KEY_ROWID, KEY_TYPE, KEY_DATE};
Cursor c = myDataBase.query(DATABASE_TABLE, columns, null, null, null, null, null);
int count = 0;
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
count++;
}
c.close();
return count;
}
========== EDIT ================
You can call this method in your onCreate() method of your activity
private void setDynamicContentViewOfThisPage() {
// Defining the Scroll View and the LinearLayout
ScrollView sv = new ScrollView(this);
LinearLayout l = new LinearLayout(this);
l.setOrientation(LinearLayout.VERTICAL);
sv.addView(l);
// You will need to collect data from the previous Intent :-)
TextView introduction = new TextView(this);
introduction.setText("Set Text Here");
introduction.setGravity(Gravity.LEFT);
introduction.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
l.addView(introduction);
Button instructionsButton = new Button(this);
instructionsButton.setTag("Some Button");
instructionsButton.setId(987654321); // Random ID set to avoid conflicts :-D
instructionsButton.setText("Click to read all the instructions");
instructionsButton.setGravity(Gravity.CENTER);
instructionsButton.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
l.addView(instructionsButton);
instructionsButton.setOnClickListener(this);
// Creates a line
TableLayout tl1 = new TableLayout(this);
View v1 = new View(this);
v1.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
v1.setBackgroundColor(Color.rgb(51, 51, 51));
tl1.addView(v1);
l.addView(tl1);
// Version 2 (Creating Different Layouts)
for(int i = 1; i <= 3 ; i++) {
// Creates a line
TableLayout tl2 = new TableLayout(this);
View v2 = new View(this);
v2.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
v2.setBackgroundColor(Color.rgb(51, 51, 51));
tl2.addView(v2);
l.addView(tl2);
LinearLayout lHor = new LinearLayout(this);
lHor.setOrientation(LinearLayout.HORIZONTAL);
//lHor.setBackgroundColor(Color.rgb(238, 233, 191));
LinearLayout lVer1 = new LinearLayout(this);
lVer1.setOrientation(LinearLayout.VERTICAL);
lVer1.setGravity(Gravity.RIGHT);
lVer1.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
// Text View
TextView tv = new TextView(this);
tv.setText("TV "+i);
tv.setTextSize(20);
// tv.setGravity(Gravity.CENTER);
tv.setTextColor(Color.rgb(255,255,255));
tv.setPadding(12, 12, 12, 12);
tv.setId(i);
// tv.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
lVer1.addView(tv); // Adding the TextView to the LinearLayout
//CheckBox
CheckBox cb = new CheckBox(this);
cb.setClickable(false);
// cb.setChecked(true);
cb.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
cb.setGravity(Gravity.CENTER);
lVer1.addView(cb);
lHor.addView(lVer1);
LinearLayout lVer = new LinearLayout(this);
lVer.setOrientation(LinearLayout.VERTICAL);
lVer.setGravity(Gravity.RIGHT);
lVer.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
Button showsomeOtherButton = new Button(this);
showsomeOtherButton.setTag("showSomeButton");
showsomeOtherButton.setId(i);
showsomeOtherButton.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
showsomeOtherButton.setText("View Image");
// showsomeOtherButton.setEnabled(false);
lVer.addView(showsomeOtherButton);
Button someOtherDataButton = new Button(this);
someOtherDataButton.setId(i);
someOtherDataButton.setTag("someOtherButton");
someOtherDataButton.setText("Do this action " + i);
// someOtherDataButton.setEnabled(false);
someOtherDataButton.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1.0f));
lVer.addView(someOtherDataButton);
showsomeOtherButton.setOnClickListener(this);
someOtherDataButton.setOnClickListener(this);
lHor.addView(lVer);
l.addView(lHor);
// Creates a line
TableLayout tl3 = new TableLayout(this);
View v3 = new View(this);
v3.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
v3.setBackgroundColor(Color.rgb(51, 51, 51));
tl3.addView(v3);
l.addView(tl3);
}
// Creates a line
TableLayout tl3 = new TableLayout(this);
View v3 = new View(this);
v3.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
v3.setBackgroundColor(Color.rgb(51, 51, 51));
tl3.addView(v3);
l.addView(tl3);
Button nextPageButton = new Button(this);
nextPageButton.setTag("goToNExtPageButton");
nextPageButton.setId(98765432);
nextPageButton.setText("Go To Next Page");
nextPageButton.setGravity(Gravity.CENTER);
//nextPageButton.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
LinearLayout.LayoutParams layoutParams=new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
layoutParams.gravity=Gravity.CENTER;
nextPageButton.setLayoutParams(layoutParams);
l.addView(nextPageButton);
// Set the content View to this
this.setContentView(sv);
}
}
I solved the problem by using a LinearLayout. I dynamically added views to it using:
LinearLayout parentLayout = (LinearLayout) findViewById(R.id.parentLayout);
TextView ChildView = new TextView(getApplicationContext());
ChildView.setText("I am the child");
parentLayout.addView(ChildView);
I loop upto the available view as suggested by Sumit.
I had to enclose the whole activity's layout into a ScrollView and it made up for the invisible children in the dynamic layout