Checking Text in TextView is on a single line

Question

How do I detect whether the text in a TextView is on one line or not.

if it extends past one line, i want to use 128dp Toolbar

if its on a single line, i want to use 48dp

Answer 1

You can set the android:singleLine attribute to true .

Refer to this documentation

Answer 2

如果返回1，则文本为单行，如下所示

int lineCount=mTextView.getLineCount();

Answer 3

Try this:

if(yourTv.getLineCount() > 1) {
    yourTv.setTextSize();
else {
    yourTv.setTextSize();
}

Answer 4

You can use StaticLayout

    TextPaint textPaint = new TextPaint();
    textPaint.setTypeface(textView.getTypeface());
    textPaint.setTextSize(textView.getTextSize());
    textPaint.setTextAlign(Paint.Align.ALIGN_NORMAL);
    StaticLayout staticLayout = new StaticLayout(textString, textPaint, widthTextView, Layout.Alignment.ALIGN_NORMAL, 1f, 0f, true);
    if (1 == staticLayout.getLineCount()) {
        //do smth
    } else {
        //do smth else
    }