I am having some trouble with my xml file. Well it was working at first but the later I wanted to give it a scroll view so I added the scroll view on to the main.xml. After saving the file. The app used to crash without launching. Seeing this I removed the scroll view on the main.xml file, and am facing a new problem in which all of the buttons are being overlapped one another.
Also if you could tell me how can I give a scroll view tag correctly it would be helpful.
Cheers. Thank you !
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Creating and Using Databases without Content Provider"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/edit"
android:padding="6dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/msg"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text = "Add a new book"
android:id="@+id/addTitle"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/upTitle"
android:text="Update a book"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/rtrTitles"
android:text="Retrieve all books"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/rtrTitle"
android:text="Retrieve Specific book"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/delTitle"
android:text="Delete a book"
android:padding="6dip"/>
<Button
android:text="Send SMS"
android:id="@+id/sms"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="6dip"/>
</RelativeLayout>
This is the main xml file with the buttons overlapping.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Creating and Using Databases without Content Provider"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/edit"
android:padding="6dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/msg"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text = "Add a new book"
android:id="@+id/addTitle"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/upTitle"
android:text="Update a book"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/rtrTitles"
android:text="Retrieve all books"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/rtrTitle"
android:text="Retrieve Specific book"
android:padding="6dip"/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/delTitle"
android:text="Delete a book"
android:padding="6dip"/>
<Button
android:text="Send SMS"
android:id="@+id/sms"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="6dip"/>
</ScrollView>
</RelativeLayout>
This is the main.xml with scroll view
You are using a RelativeLayout and not actually “placing” the buttons beside, or on top, or whatever of each other using something like the android:layout_toRightOf tags. The scrollview must be the parent view because it can only accept one child, which in your situation should be a LinearLayout (or a relative if your going to place your objects correctly). The main issue with your xml however is that RelativeLayout.