[android-beginners] start another activity through onclick event

[Lynn Ooi]

hi,

I had 2 activity (called androidGallery and HelloAndroid). i try to
call helloAndroid from the androidGallery when user click on the
button. basically, androidGallery is just to get the onclick event.
The helloAndroid activity will set the text of a textview. however, i
cant get it working. Once i click the button, a dialog box pop up
saying that the application has been stopped unexpectedly with a force
close button. Can anyone help me with it?

androidGallery.java :

package testt.android.androidgallery;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class androidGallery extends Activity {
        private Button btnclickme;

        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                final Button button = (Button) findViewById(R.id.button_id);
        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Perform action on click
                Intent myIntent = new Intent(androidGallery.this,
helloAndroid.class);
                androidGallery.this.startActivity(myIntent);
            }
        });

        }
}

helloAndroid.java :

package test.android.androidgallery;

import java.io.BufferedInputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.util.ByteArrayBuffer;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

public class helloAndroid extends Activity{
        /** Called when the activity is first created. */
        public void onCreate(Bundle savedInstanceState) {
                // super.onCreate(savedInstanceState);
                // setContentView(R.layout.main);
                String a = "hello Lynn";
                super.onCreate(savedInstanceState);
                TextView tv = new TextView(this);
                tv.setText(a);
                setContentView(tv);
        }
}

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