Question

I have written an app with XML and still I don’t write Classes by java code. But the emulator can show my app by its name and after that it says ” unfortunately, app has stopped.” What I have to do for this problem??!

This is my code:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="@string/hello"/>
<TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/TextView2"/>
<Button
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/Button"
    />

</LinearLayout> 

Answer 1

You must have at least one activity (Java class) in your application so that manifest.xml could recognize that and run it.