Answer to Question #52650 in AJAX | JavaScript | HTML | PHP for krishna

Question

Generate a Dynamic UI where i can create widgets on fly and use then around the application and the widgets should have a dynamic drag and drop facility...

Answer 1

Answer:

File of a class of anapplication window.
package com.samples.ui.dynamicui;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewCroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
public class DynamicUIActivity extends Activity
implements View.OnClickListener {
private static final int ID_BUTTON1 = 101;
private static final int ID_BUTTON2 = 102;
private static final int ID_TEXT = 103;
private TextView text;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

//comment method, we do not need
//setContentView(R.layout.main);

//create the root layout
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setLayoutParams(new Linearlayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
//create the first button
Button button1 = new Button(this);
button1.setText("Button1");
button1.setId(ID_BUTTON1);
button1.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
button1.setOnClickListener(this);
//create the second button
Button button2 = new Button(this);
button2.setText("Button2");
button2.setId(ID_BUTTON2);
button2.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
button2.setOnClickListener(this);
//Create a text field
text = new TextView(this);
text.setId(ID_TEXT);
text.setText("Event:");
text.setLayoutParams(new LenaerLayout.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
layout.addView(button1);
layout.addView(button2);
layout.addView(text);
//add the created content on Activity
this.addContentView(layout, new LinearLayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT));
}
//button event handler
@Override
public void onClick(View v) {
switch (v.getId()) {
case ID_BUTTON1:
text.setText("Click on First Button");
breack;
case ID_BUTTON2:
text.setText("Click on Second Button");
breack;
}
}
}