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1.在自定义的TextView 里如何得到文本控件的宽度

String mText = "测试";int mTextSize = 30;//使用画笔Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); //设置文本大小mPaint.setTextSize(mTextSize); private Rect mTextBound = new Rect();  mPaint.getTextBounds(mText, 0, mText.length(), mTextBound);  //得到文本宽度int mTextWidth = (int) mPaint.measureText(mText);

2.自定义的TextView ,如何测量文本的高度

private int measureHeight(int measureSpec)  {          int mode = MeasureSpec.getMode(measureSpec);          int val = MeasureSpec.getSize(measureSpec);          int height= 0;          switch (mode)   {          case MeasureSpec.EXACTLY:              height= val;              break;          case MeasureSpec.AT_MOST:          case MeasureSpec.UNSPECIFIED:              height= mTextBound.height();              break;          }          height= mode == MeasureSpec.AT_MOST ? Math.min(result, val) : result;          return height+ getPaddingTop() + getPaddingBottom();      }

3.如何测量文本的高度

private int measureWidth(int measureSpec)  {          int mode = MeasureSpec.getMode(measureSpec);          int val = MeasureSpec.getSize(measureSpec);          int width= 0;          switch (mode)  {          case MeasureSpec.EXACTLY:              width= val;              break;          case MeasureSpec.AT_MOST:          case MeasureSpec.UNSPECIFIED:                          width= mTextWidth;              break;          }          width= mode == MeasureSpec.AT_MOST ? Math.min(width, val) : width;          return width + getPaddingLeft() + getPaddingRight();      }

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