CODEWITHSUNDEEP
androidresizetextview
user291701
user291701

Reputation: 39731

Scale text in a view to fit?

I don't believe this exists, but wanted to double-check. I'd like to set a TextView's text size such that it would fit within a given width, single line. Example:

<LinearLayout
  layout_width="100dip"
  layout_height="50dip">

  <TextView
    layout_width="fill_parent"
    layout_height="wrap_content"
    textSize="fill" 
    text="fit me please!" />

</LinearLayout>

Thanks

Upvotes: 11

Views: 7286

Answers (4)

Mason Lee
Mason Lee

Reputation: 5140

Here is a good packaged solution to auto-fit text: https://github.com/grantland/android-autofittextview

Upvotes: 0

Mason Lee
Mason Lee

Reputation: 5140

This custom function should do it, using TextUtils.ellipsize ...

public static void shrinkTextToFit(float availableWidth, TextView textView,
                                   float startingTextSize, float minimumTextSize) {

    CharSequence text = textView.getText();
    float textSize = startingTextSize;
    textView.setTextSize(startingTextSize);
    while (text != (TextUtils.ellipsize(text, textView.getPaint(),
                                        availableWidth, TextUtils.TruncateAt.END))) {
        textSize -= 1;
        if (textSize < minimumTextSize) {
            break;
        } else {
            textView.setTextSize(textSize);
        }
    }
}

Upvotes: 5

Ron
Ron

Reputation: 24235

You can use the TextUtils.EllipsizeCallback. When the text gets ellipsized this callback is done by the textview. Here you can set text size smaller than the current.

EDIT : Otherwise you can use TextUtils.ellipsize this way

while (mText != TextUtils.ellipsize(mText, textPaint, other params)) { 
    textpaint.setTextSize(textpaint.getTextSize() - 1);
}

Upvotes: 11

jasoares
jasoares

Reputation: 1821

You can always combine the xml layout definition with java and dynamically define the size of the text. You will probably need some calculations and references from the dip units to the pixel density information about the current screen in use, but once done, it should almost guaranteed solve your problem for all cases.

Upvotes: 0

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