Android 自定义TextView实现文本内容自动调整字体大小以适应TextView的大小
最近做通讯录小屏机 联系人姓名显示--长度超过边界字体变小
/**
* 自定义TextView,文本内容自动调整字体大小以适应TextView的大小
* @author yzp
*/
public class AutoFitTextView extends TextView {
private Paint mTextPaint;
private float mTextSize;
public AutoFitTextView(Context context) {
super(context);
}
public AutoFitTextView(Context context, AttributeSet attrs) {
super(context, attrs);
}
/**
* Re size the font so the specified text fits in the text box assuming the
* text box is the specified width.
*
* @param text
* @param textWidth
*/
private void refitText(String text, int textViewWidth) {
if (text == null || textViewWidth <= 0)
return;
mTextPaint = new Paint();
mTextPaint.set(this.getPaint());
int availableTextViewWidth = getWidth() - getPaddingLeft() - getPaddingRight();
float[] charsWidthArr = new float[text.length()];
Rect boundsRect = new Rect();
mTextPaint.getTextBounds(text, 0, text.length(), boundsRect);
int textWidth = boundsRect.width();
mTextSize = getTextSize();
while (textWidth > availableTextViewWidth) {
mTextSize -= 1;
mTextPaint.setTextSize(mTextSize);
textWidth = mTextPaint.getTextWidths(text, charsWidthArr);
}
this.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTextSize);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
refitText(this.getText().toString(), this.getWidth());
}
} 相关推荐
zhanghao 2020-06-16
tichangde 2020-05-19
xsgnzb 2020-03-09
lixiaotao 2020-03-02
bertzhang 2019-12-25
RexLeee 2019-12-23
MaureenChen 2019-12-03
wangjie 2019-11-10
谢恩铭 2016-01-10
时间猎人 2019-09-06
Jolestar 2016-06-02
gigipop 2019-07-01
标题 2019-07-01
jianqi 2019-07-01
RLanffy 2019-07-01
VVVinegar 2019-07-01
GeolageWu 2019-06-30
CoderChang 2019-06-30