How to Check the number of lines in a String in Android?

问题

I want to check the no of lines in my text view from the string I am going to pass to the test view. I have added android:maxLines = "2".... If it exceeds two i need to show/hide a view....How can I achieve this?

回答1:

Use a thread to count the number of lines,

 textView.setText("Text Here");
    textView.post(new Runnable() {

        @Override
        public void run() {

            Log.v("Line count: ", textView.getLineCount()+"");
        }
    });

If you want to limit the number of lines in TextView from xml then use android:maxLines

回答2:

I believe the TextView has a method getLineCount which you can use to get the number of lines. You can compare that function's return value with maxLines and show/hide if the limit is reached.

See also: TextView.getLine()

And: TextView - maxLines attribute

来源：https://stackoverflow.com/questions/22854554/how-to-check-the-number-of-lines-in-a-string-in-android