adding views to android layout on button click

Question

i want to dynamically add views (textview or EditText) to my layout as per user instructions. i am developing this just to figure out things and learn how they work. my XML file is as follows

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
 <LinearLayout 
 android:id="@+id/email"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent">
 <TextView 
 android:id="@+id/text1"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="email1"
 />
 <EditText 
 android:id="@+id/edit1" 
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:hint="enter mail "
 />
 </LinearLayout> 
<LinearLayout 
 android:id="@+id/phones"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent">
 <TextView 
 android:id="@+id/text2"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="phone number"
 />
 <EditText 
 android:id="@+id/edit2" 
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:hint="enter phone "
 />
</LinearLayout> 
<LinearLayout
 android:id="@+id/myButtons"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:orientation="horizontal" >
 <Button
 android:id="@+id/button1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="add mail"
 android:onClick="addmail"
 />
 <Button
 android:id="@+id/button2"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="add phone"
 />
</LinearLayout>
</LinearLayout>

now here , i have two buttons. when the user clicks on addmail i want an edittext to be added to my layout (below my first email EditText in LinearLayout with id "email". i have set android:onClick to addmail for the button and my addmail function is as follows:

public void addmail(){
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams((LayoutParams. WRAP_CONTENT) , (LayoutParams.WRAP_CONTENT));
 EditText edittv = new EditText(getApplicationContext());
 edittv.setLayoutParams(lp);
 LinearLayout ll1=(LinearLayout)findViewById(R.id.email);
 ll1.addView(edittv);
}

but the code is not working . what modifications are required? where am i going wrong. Are my concepts at fault? thankyou in advance

Answer 1

Don't use Application Context here: EditText edittv = new EditText(getApplicationContext());, just use specific Activity Context and it will solve your problem. I hope so :D!