Question

I tried the below code to create multiple buttons through programatically but it creates a single button as per my application i need to create a button based on input. For example if the input is 3 means i need to create three buttons in a layout. For your reference i attached the sample image and my code.

for (int i = 0; i < array_of_btn_input.size(); i++) {
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.WRAP_CONTENT,
                    LinearLayout.LayoutParams.WRAP_CONTENT);

            LinearLayout layout = new LinearLayout(getApplicationContext());
            LinearLayout.LayoutParams params1 = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.WRAP_CONTENT,
                    LinearLayout.LayoutParams.WRAP_CONTENT);
            layout.setOrientation(LinearLayout.VERTICAL);
            layout.setLayoutParams(params);
            Button button1 = new Button(getApplicationContext());
            button1.setLayoutParams(params1);
            button1.setText("button");

            layout.addView(button1);
            main_layer.addView(layout);
}

Answer 1

if in your example, your global container (main_layer) is a relativelayout or a frame layout, you have placed them on top of eachother. So you can’t see the one on the back order.

Try this pls,

LinearLayout main_layer= (LinearLayout) findViewById(id.main_layer);


for (int i = 0; i < 10; i++) 
{
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);

LinearLayout layout = new LinearLayout(getApplicationContext());
LinearLayout.LayoutParams params1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);

layout.setOrientation(LinearLayout.VERTICAL);
layout.setLayoutParams(params);
Button button1 = new Button(getApplicationContext());
button1.setLayoutParams(params1);
button1.setText("button");

layout.addView(button1);
main_layer.addView(layout);
}