Thursday, 7 February 2013

Dynamically create button in android


MainActivity.java


public class MainActivity extends Activity { 
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

/** Call customButton Method */
customButton();
}

private void customButton() {
// TODO Auto-generated method stub
Button myButton = new Button(this);
myButton.setText("Click Me");
LinearLayout ll = (LinearLayout)findViewById(R.id.btn_layout);
LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
ll.addView(myButton, lp);
myButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, "Hello Friends", Toast.LENGTH_LONG).show();
}
});
}
}


activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/dynamic"
    android:orientation="vertical"
    tools:context=".MainActivity" >

 <LinearLayout
        android:id="@+id/btn_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </LinearLayout>

</LinearLayout>

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