背景：產品姐姐需要吧￥符號和123456785價格等text內容的內邊距去掉。

NumberTextView代碼： package com.devleo.text.demo;import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.util.AttributeSet;import androidx.annotation.Nullable; import androidx.appcompat.widget.AppCompatTextView;/*** @author DevleoDeng*/ public class NumberTextView extends AppCompatTextView {private Rect mRect;public NumberTextView(Context context) {super(context);}public NumberTextView(Context context, @Nullable AttributeSet attrs) {super(context, attrs);}public NumberTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {super.onMeasure(widthMeasureSpec, heightMeasureSpec);if (mRect == null) {//該坐標是以（0,0）為基準的矩形坐標mRect = new Rect();}getPaint().getTextBounds(getText().toString(), 0, getText().length(), mRect);final int width = mRect.width();final int height = mRect.height();setMeasuredDimension(width, height);}@Overrideprotected void onDraw(Canvas canvas) {final String text = getText().toString();final int left = mRect.left;final int top = mRect.top;Paint paint = getPaint();paint.setColor(getCurrentTextColor());canvas.drawText(text, -left, -top, paint);} }

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