更改editText提示的字体 [英] change font for editText hint

问题描述

是否可以更改EditText字段中显示的提示的字体?我想在xml本身中设置字体.

Is it possible to change the font for the hint displayed in the EditText field? I want to set the font in the xml itself.

推荐答案

您可以使用SpannableString和Custom TypefaceSpan对其进行更改.

You can change it with a SpannableString and a Custom TypefaceSpan.

首先，创建一个Custom TypefaceSpan类:

First, create a Custom TypefaceSpan class:

public class CustomTypefaceSpan extends TypefaceSpan {
    private final Typeface mNewType;

    public CustomTypefaceSpan(Typeface type) {
        super("");
        mNewType = type;
    }

    public CustomTypefaceSpan(String family, Typeface type) {
        super(family);
        mNewType = type;
    }

    @Override
    public void updateDrawState(TextPaint ds) {
        applyCustomTypeFace(ds, mNewType);
    }

    @Override
    public void updateMeasureState(TextPaint paint) {
        applyCustomTypeFace(paint, mNewType);
    }

    private static void applyCustomTypeFace(Paint paint, Typeface tf) {
        int oldStyle;
        Typeface old = paint.getTypeface();
        if (old == null) {
            oldStyle = 0;
        } else {
            oldStyle = old.getStyle();
        }

        int fake = oldStyle & ~tf.getStyle();
        if ((fake & Typeface.BOLD) != 0) {
            paint.setFakeBoldText(true);
        }

        if ((fake & Typeface.ITALIC) != 0) {
            paint.setTextSkewX(-0.25f);
        }

        paint.setTypeface(tf);
    }
}

然后将TypefaceSpan设置为SpannableString:

Then just set the TypefaceSpan to a SpannableString:

TypefaceSpan typefaceSpan = new CustomTypefaceSpan(typeface);
SpannableString spannableString = new SpannableString(hintText);

spannableString.setSpan(typefaceSpan, 0, spannableString.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);

最后只需设置您的EditText提示:

And finally just set the hint of your EditText:

mEditText.setHint(spannableString);

这篇关于更改editText提示的字体的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！