Android:TextView height doesn't change after shrinking the font size

Question

When I click on the button, the font size shrinks to 12. However, the result is :

Answer 1

Maybe setting the view to View.GONE, changing your text size, then setting to View.VISIBLE would work?

Answer 2

Finally, I found the reason/solution!!!

This is a known bug for Android 3.1+

Issue 17343

Issue 22493

Possible workaround are:

text.setText(text+"\n");

or

final String DOUBLE_BYTE_SPACE = "\u3000";
text.setText(text + DOUBLE_BYTE_SPACE);

Answer 3

Instead of using:

final String DOUBLE_BYTE_SPACE = "\u3000";
text.setText(text + DOUBLE_BYTE_SPACE);

Better use:

final String DOUBLE_BYTE_WORDJOINER = "\u2060";
text.setText(text + DOUBLE_BYTE_WORDJOINER);

Extra information: Word Joiner is 0 width space.

Answer 4

I found that adding the character "\u200b" does not appear as a broken character, nor does it add a whitespace/linebreak.

For more details on the "ZERO WIDTH SPACE" see: http://www.fileformat.info/info/unicode/char/200b/index.htm

Answer 5

So, After a long search I have found a solution. Every time you set text do:

setText("I am a Text",TextView.BufferType.SPANNABLE);

Or after resizing your text just do:

setText(getText(),TextView.BufferType.SPANNABLE);

Answer 6

In main.xml file TextView size given android:textSize="40sp" . and in side java, click on the button change the value here

  public void onClick(View v) {

            text.setTextSize(12);
        }