how to set text of text view in another thread
<p>i am tring to setText in another thread i.e child thread. But is giving error "Only the original thread that created a view hierarchy can touch its views."
this is code.</p>

<pre><code>public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    img = (ImageView)findViewById(R.id.img);
    pb = (ProgressBar)findViewById(R.id.pb);
    this.tv = (TextView)findViewById(R.id.perc);
     tv.setText("30 %");
    pb.setProgress(30);
    pb.setMax(100);
    }
</code></pre>

<p>public void set(int p)
    {
        tv.setText(p + " %");
    }</p>

<pre><code>protected void onStart() 
{
    super.onStart();
    pb.setProgress(20);

    Thread t = new Thread(new Runnable() 
    {

        @Override
        public void run() 
        {   
            try {
                int i = pb.getProgress();
                while(i &lt;100)
                {
                    while(pb.getProgress()&lt;100)
                    {
                        pb.incrementProgressBy(5);
                        Thread.sleep(1000);
                    }
                i+=10;
                pb.setProgress(i);
                Thread.interrupted();
                set(i);
                }
            } 
            catch (InterruptedException e) 
            {
                e.printStackTrace();
            }
        }
    });
t.start();
}
</code></pre>
