调用需要API级别11（当前最小值为8）：android.widget.EditText＃setAlpha

Question

I want to make my EditText Opacity to 1 which will ensure that it looks like disabled. But since my API level is set to 8, i am not able to apply this method.

Is there anyway we can disable the EditText and Grey it out , so that i looks disabled.

Answer 1

尝试：

editText.setEnabled(false);

Answer 2

Yes, you can use setEnabled(false) and then apply this kind of style on the button (in the layout xml file):

<item android:state_enabled="false" >
<shape>
            <gradient
                android:endColor="#007900"
                android:startColor="#009A77"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#F1FAFE" />
            <corners
                android:radius="5dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
    </shape>
</item>

Customise the values with colors and effects you want.

Edit: You will find everything you want to learn how to apply a style on any UI element here: http://www.devahead.com/blog/2011/08/creating-a-custom-android-button-with-a-resizable-skin/ The example is about buttons but it is the exact same method for any other view.