Question

I’m adding TextViews dynamically with code. Now I’m using a LinearLayout with horizontal orientation which i thought would add a new line when the textviews doesnt fit into the row. And how wrong I was.

Thing is I don’t know how many rows there will be, since it depends on user input. Therefor a GridView doesn’t feels right, since I can’t specify the number of columns. And I don’t know every size of every TextView, which might make it look bad if a TextView is very long and I want 3 TextViews per row.

I’m sure there is a simple solution to this, I just wanna know the best one. Which layout should I use so when I add TextViews to it, so it makes a new row below the first one when it reaches the screen width?

Thanks!

Answer 1

See this:

package us.simpleit;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;

public class SimpleGUI extends Activity {
    TextView tv;
    EditText et;
    LinearLayout ll;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //LinearLayout ll = new LinearLayout(this);
        ll = new LinearLayout(this);
        ll.setOrientation(android.widget.LinearLayout.VERTICAL);
        ll.setLayoutParams(new ViewGroup.LayoutParams(-1,-1));
        // ARGB: Opaque Red
        ll.setBackgroundColor(0x88ff0000);

        tv = new TextView(this);
        tv.setLayoutParams(new ViewGroup.LayoutParams(-1,-2));
        tv.setText("sample text goes here");
        // ARGB: Opaque Green
        tv.setBackgroundColor(0x5500ff00);
        ll.addView(tv);

        et = new EditText(this);
        et.setLayoutParams(new ViewGroup.LayoutParams(-1,-2));
        et.setText("edit me please");
        // ARGB: Solid Blue
        et.setBackgroundColor(0xff0000ff);
        ll.addView(et);

        Button btn = new Button(this);
        btn.setText("Go!");
        btn.setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                tv.setText(et.getText().toString());
            }
        });

        ll.addView(btn);
        setContentView(ll);

        //setContentView(R.layout.main);
    }
}

Here i have taken One TextView and One EditText. Instead of that you can take two TextView or any Number of view you want.

Enjoy. 🙂