Thursday 20 November 2014

Dynamic Controls Creation in Android


DynamicFieldsActivity.java

import android.animation.LayoutTransition;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

public class DynamicFieldsActivity extends Activity {

 EditText textIn;
 Button buttonAdd;
 LinearLayout container;
 Button buttonShowAll;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.dynamicfields);
  textIn = (EditText) findViewById(R.id.textin);
  buttonAdd = (Button) findViewById(R.id.add);
  container = (LinearLayout) findViewById(R.id.container);

  buttonAdd.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View arg0) {
   
    
    int val=Integer.parseInt(textIn.getText().toString());
    
    
    for (int c = 1; c <=val; c++) {
     
    
     LayoutInflater layoutInflater = (LayoutInflater) getBaseContext()
       .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     final View addView = layoutInflater.inflate(
       R.layout.dynamicrow, null);

       container.addView(addView, 0);
    
    
    }
    
    
   }
  });

  LayoutTransition transition = new LayoutTransition();
  container.setLayoutTransition(transition);

  buttonShowAll = (Button) findViewById(R.id.showall);
  buttonShowAll.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View arg0) {

    String showallPrompt = "";

    int childCount = container.getChildCount();
    showallPrompt += "childCount: " + childCount + "\n\n";

    for (int c = 0; c < childCount; c++) {
     View childView = container.getChildAt(c);
     

     EditText etText = (EditText) (childView
       .findViewById(R.id.etname));

     
     EditText etAge = (EditText) (childView
       .findViewById(R.id.etAge));
     
     
     RadioGroup radioSexGroup = (RadioGroup) childView
       .findViewById(R.id.radioSex);
     
     int selectedId = radioSexGroup.getCheckedRadioButtonId();
     
     RadioButton radioSexButton = (RadioButton) childView.findViewById(selectedId);
     
     String childTextViewText="";

     childTextViewText += (String) (etText.getText().toString());
     
     childTextViewText +=(String)(etAge.getText().toString());
     
     
     childTextViewText +=(String)(radioSexButton.getText().toString());
     
     showallPrompt += c + ": " + childTextViewText + "\n";
    }

    Toast.makeText(DynamicFieldsActivity.this, showallPrompt,
      Toast.LENGTH_LONG).show();
   }
  });
 }
}



dynamicfields.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:orientation="vertical"
    android:layout_margin="10dp"
    android:padding="5dp" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <Button
            android:id="@+id/add"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:text="Add" />

        <EditText
            android:id="@+id/textin"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_toLeftOf="@id/add"
            android:inputType="number" />
    </RelativeLayout>

    <Button
        android:id="@+id/showall"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Show Data in Fieldsl" />

    <LinearLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        >
    </LinearLayout>

</LinearLayout>


dynamicrow.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="wrap_content"
    android:layout_margin="5dp"
    android:orientation="horizontal"
    android:padding="3dp" 
    >

    <EditText
        android:id="@+id/etname"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="3"
        android:hint="Name"
        android:inputType="textPersonName" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/etAge"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:ems="10"
        android:hint="Age"
        android:inputType="number" >
    </EditText>

    <RadioGroup
        android:id="@+id/radioSex"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal" 
        android:paddingTop="5dp">

        <RadioButton
            android:id="@+id/radioMale"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="M" 
            />

        <RadioButton
            android:id="@+id/radioFemale"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="F"
          />
    </RadioGroup>

</LinearLayout>







ScreenShots






No comments:

Post a Comment