ایجاد رابط کاربری در زمان اجرا

package net.learn2develop.UICode;
import android.app.Activity;
import android.os.Bundle;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
//---param for views---
LayoutParams params =
new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
//---create a layout---
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
//---create a textview---
TextView tv = new TextView(this);
tv.setText(“This is a TextView”);
tv.setLayoutParams(params);
//---create a button---
Button btn = new Button(this);
btn.setText(“This is a Button”);
btn.setLayoutParams(params);
//---adds the textview---
layout.addView(tv);
//---adds the button---
layout.addView(btn);
//---create a layout param for the layout---
LinearLayout.LayoutParams layoutParam =
new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT );
this.addContentView(layout, layoutParam);
}
}

//---param for views---
LayoutParams params =
new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);

//---create a layout---
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);

//---create a textview---
TextView tv = new TextView(this);
tv.setText(“This is a TextView”);
tv.setLayoutParams(params);
//---create a button---
Button btn = new Button(this);
btn.setText(“This is a Button”);
btn.setLayoutParams(params);

//---adds the textview---
layout.addView(tv);
//---adds the button---
layout.addView(btn);

//---create a layout param for the layout---
LinearLayout.LayoutParams layoutParam =
new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT );

this.addContentView(layout, layoutParam);