Textview 提示文字

轉貼

Example source code for Android development. How set gray text to EditText when EditText is blank.
Hint text to display when the text is empty.
In layout/main.xml insert to EditText row Attribute Name android:hint=”Some text”

 
<EditText
        android:id="@+id/myEdit" 
 android:layout_height="wrap_content" android:layout_width="fill_parent"
        android:hint="Some text"
 android:singleLine="true"
</EditText>

Programatically you can use method setHint:

 
// setHint(CharSequence hint) example
(EditText)findViewById(R.id.myEdit).setHint("My text");
// or int resId as method setHint(int resId) 
EditText myEdit = findViewById(R.id.myEdit);
myEdit.setHint(R.string.app_name);