Android API中的一段
To allow users to copy some or all of the TextView's value and paste it somewhere else, set the XML attribute android:textIsSelectable to "true" or call setTextIsSelectable(true). The textIsSelectable flag allows users to make selection gestures in the TextView, which in turn triggers the system's built-in copy/paste controls.
To allow users to copy some or all of the TextView's value and paste it somewhere else, set the XML attribute android:textIsSelectable to "true" or call setTextIsSelectable(true). The textIsSelectable flag allows users to make selection gestures in the TextView, which in turn triggers the system's built-in copy/paste controls.
android:textIsSelectable to "true" or call setTextIsSelectable(true)