Question

I am facing a scenario, where my main.xml has its main hierarchy written in XML but, the main data is coming from the server, so I need to compose the layout in runtime.

Please, take a look on this screenshot to better understand my scenario.

I shall have a Scroll View and then right under it, a Linear Layout. I retrieve this layout in my java class and create a new linear layout , so that I can create the new TextViews and Buttons like I draw inside LinearLayout 2. The end result is far from I expected and I honestly am not sure how I can accomplish this.

The code for is:

LinearLayout ll = (LinearLayout) findViewById(R.id.linearLayoutOffers); //this is the LinearLayout2 in SS

    //Creating the container that will have one business.
    LinearLayout containerMain = new LinearLayout(this);
    containerMain.setOrientation(LinearLayout.VERTICAL);
    containerMain.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));  
    containerMain.setGravity(Gravity.CENTER); 

    LinearLayout container1 = new LinearLayout(this);
    container1.setOrientation(LinearLayout.HORIZONTAL);
    container1.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));  
    container1.setGravity(Gravity.CENTER);
    container1.setWeightSum(2);

    LinearLayout container2 = new LinearLayout(this);
    container2.setOrientation(LinearLayout.HORIZONTAL);
    container2.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));  
    container2.setGravity(Gravity.CENTER); 
    container2.setWeightSum(1);

    LinearLayout container3 = new LinearLayout(this);
    container3.setOrientation(LinearLayout.HORIZONTAL);
    container3.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));  
    container3.setGravity(Gravity.CENTER);
    container3.setWeightSum(1);

    TextView offerTitle = new TextView(this);
    offerTitle.setText(pOfferTitle);  
    offerTitle.setTextSize(14);
    //offerTitle.setPadding(10, 0, 10, 0);
    offerTitle.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));

    Button redeemButton = new Button(this);
    redeemButton.setText("Usar");
    redeemButton.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));
    //redeemButton.setPadding(10, 0, 10, 0);
    redeemButton.setTextSize(14);

    container1.addView(offerTitle);
    container1.addView(redeemButton);

    TextView mAddress = new TextView(this);
    mAddress.setText(pAddress);  
    mAddress.setTextSize(14);
    //mAddress.setPadding(10, 0, 10, 0);
    mAddress.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));

    container2.addView(mAddress);

    TextView expiryDate = new TextView(this);
    expiryDate.setText(pExpiryDate);  
    expiryDate.setTextSize(14);
    //expiryDate.setPadding(10, 0, 10, 0);
    offerTitle.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.6f));

    Button detailsButton = new Button(this);
    detailsButton.setText("Detalhes");
    detailsButton.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.4f));
    //detailsButton.setPadding(30, 0, 0, 0);
    detailsButton.setTextSize(14);

    container3.addView(expiryDate);
    container3.addView(detailsButton);

    containerMain.addView(container1);
    containerMain.addView(container2);
    containerMain.addView(container3);

    ll.addView(containerMain);

Thanks for your time!
Felipe

Answer 1

I think a far better way would be to use a ListView.
There you can define every row like you want. Also you can add or remove lines at runtime.
A ScrollView collapses easily when you want to add elements to it on runtime.