Android programming (how to display a string in a textview)

Question

Hi all. I'm working on an app that scans the devices system info and I was wondering if it was possible to add two strings:

String manufacturer = Build.MANUFACTURER;
String model = Build.MODEL;

to my MainActivity and display them on the screen somehow. Here is my MainActivity:

package com.shadycorp.diji.clock

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

andr · Accepted Answer · 2013-01-14 23:08:57Z

1

In your layour activity_main add two TextViews with assigned IDs:

<TextView
    android:id="@+id/manufacturer"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="left" />
<TextView
    android:id="@+id/model"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="left" />

Then, in your onCreate() method, after inflating the layout, find these TextViews using assigned IDs:

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView manufacturerTextView = (TextView)findViewById(R.id.manufacturer);
TextView modelTextView = (TextView)findViewById(R.id.model);
// Now you can set TextView's text using setText() method:
manufacturerTextView.setText(Build.MANUFACTURER);
modelTextView.setText(Build.MODEL);

That's all!

answered Jan 14, 2013 at 23:08

andr

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2 Comments

andr Over a year ago

Have you written anything before in Java? I guess not. Your code is incorrect. Post your layout XML file contents to pastebin.

andr Over a year ago

I don't think so, since your code in syntactically incorrect. Here is corrected version: pastebin.com/zj243sEP

Booger · Accepted Answer · 2013-01-14 23:07:21Z

1

First step, in your onCreate method, get a reference to your TextView component (using the resource name in XML), then you can set the text on it directly (last 2 lines in this code example show you what you need to do).

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    TextView tv = (TextView) findViewById(R.id.some_textview_resource_name);
    tv.setText("Text is: " + Build.MANUFACTURER + Build.MODEL);
}

answered Jan 14, 2013 at 23:07

Booger

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5 Comments

user1934637 Over a year ago

how can i add the strings and then send them to a text view because im not entireely understanding the answers

Booger Over a year ago

Hmmm, not sure - there are 2 answers that show you exactly how to do it. Find your UI resource, get a handle to it, and setText on it. Either mine, or andr's answers are clear IMHO.

user1934637 Over a year ago

and now its saying build can not be resolved as a variable and the same for SavedInstanceState

Booger Over a year ago

You have a build error (syntax error somewhere). Look in your XML files - and in your "Problems" tab on the bottom of your IDE (if it's eclipse)

andr Over a year ago

@user1934637 please accept an answer which you feel helped you the most. By doing that you help others who stumble upon a similar problem in picking a working solution.

Ramesh Sangili · Accepted Answer · 2013-01-14 23:02:46Z

0

textView.setText("Manufacturer " + manufacturer  + "Model" +model);

answered Jan 14, 2013 at 23:02

Ramesh Sangili

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