EditText不显示光标或软键盘

Question

I am trying to make a simple Hello World app with an EditText, but the EditText shows neither a cursor nor a soft keyboard when I click it. There is no way to enter any text. I am getting the same problem in both the emulator and on my Galaxy Nexus device.

Here is my activity_main.xml layout file:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <EditText
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent" 
        android:inputType="text"  >
    </EditText>

</LinearLayout>

I don't have anything special in my Activity's OnCreate() method:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);     
}

What am I missing?

Answer 1

The OP had the following solution as an edit inside the question (and I'm just moving it to the proper place, as expected ):

---

Removing the line

android:background="@android:color/transparent" 

as suggested by meh's comment fixed the problem.