Creating Linear Layout with TextViews using a for loop

Question

I was wondering if there is a way to dynamically create an additional linear layout with a textview within a predefined liner layout. THis is my code so you get the gist of what I am asking:

LinearLayout MainLL= (LinearLayout) findViewById(R.id.myLayoutId); 

  for(int i=0; i<5; i++)
  {
   LinearLayout childLL= new LinearLayout(this);
   childLL.setOrientation(LinearLayout.VERTICAL);  
   childLL.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));  
   childLL.setGravity(Gravity.LEFT);

 TextView text = new TextView(this);
   text.setText("The Value of i is :"i);
   text.setTextSize(12);  
   text.setGravity(Gravity.LEFT);
   text.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
childLL.addView(text);
MainLL.addView(childLL);
}

My problem is that I am only getting "The Value of i is :0" as the output, i.e. the first instance.

Any help would be much appreciated

Cristian · Accepted Answer · 2011-01-02 02:48:19Z

4

You don't need to wrap the TextView inside another LinearLayout, you can do just:

LinearLayout MainLL= (LinearLayout) findViewById(R.id.myLayoutId); 
  for(int i=0; i<5; i++){
 TextView text = new TextView(this);
   text.setText("The Value of i is :"+i); // <-- does it really compile without the + sign?
   text.setTextSize(12);  
   text.setGravity(Gravity.LEFT);
   text.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
MainLL.addView(text);
}

answered Jan 2, 2011 at 2:48

Cristian

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1 Comment

cad8 Over a year ago

Thanks all, you have pointed me in the right direction but I figured out my flaw. I forgot to have a setContent view. Adding the following to the end solved the problem: this.setContentView(MainLL);

Vivek · Accepted Answer · 2011-01-02 05:59:56Z

0

Everything you are doing is correct just make it

childLL.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

because your parent layout is filled by 1st view because of that you can not see other view.

and yes

 text.setText("The Value of i is :"+i); //add + sign

answered Jan 2, 2011 at 5:59

Vivek

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Comments

gke · Accepted Answer · 2011-01-02 12:06:46Z

0

Yes, if you greatly need to wrap another LinearLayout before wrapping the TextView. Please try this code:

childLL.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1f));

This will ensure the wrapped LinearLayout has the same weight, so all the views will be displayed on the screen.

answered Jan 2, 2011 at 12:06

gke

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