How to Measure TextView Height Based on Device Width and Font Size?

Question

I am looking for method in Android that will take a input (text, text_font_size, device_width) and based on these calculations it will return how much height will required t

Answer 1

Paint.getTextBounds() returns not what you would expect. Details are here.

Instead, you can try this way:

int mMeasuredHeight = (new StaticLayout(mMeasuredText, mPaint, targetWidth, Alignment.ALIGN_NORMAL, 1.0f, 0.0f, true)).getHeight();

Answer 2

I've got a easier method to know the real height of a line before be painted, I don't know if this help you guys, but my solution to get the height of a line it's independent of the height of the layout, just take the font metrics like this:

myTextView.getPaint().getFontMetrics().bottom - myTextView.getPaint().getFontMetrics().top)

with that we get the real height that the fonts will take from the textview to be painted. This not give you an int, but you can make a Math.round to get a near value.

Answer 3

public static int getHeight(Context context, String text, int textSize, int deviceWidth) {
    TextView textView = new TextView(context);
    textView.setText(text);
    textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
    int widthMeasureSpec = MeasureSpec.makeMeasureSpec(deviceWidth, MeasureSpec.AT_MOST);
    int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
    textView.measure(widthMeasureSpec, heightMeasureSpec);
    return textView.getMeasuredHeight();
}

If textSize is not given in pixels, change the first paramter of setTextSize().