有时候利用android的TextView显示中文跟数字的组合会对不齐，如下面截图，文字还没有到达屏幕右边就开始换行了
为了解决这个文字，，自己子定义了一个TextView的子类来实现，具体步骤如下：
1.自定义AlignTextView继承系统TextView
import android.content.Context;import android.content.res.TypedArray;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.text.TextUtils;import android.util.AttributeSet;import android.widget.TextView;import java.util.ArrayList;/** * Created by crab on 15-3-16. * 解决中文跟数字在一起的是时候textView显示不正确问题 */public class AlignTextView extends TextView {//行间距private float mLineGap = 0.0f;private Paint mPaint;private ArrayList<String> mTexts = new ArrayList<String>();public AlignTextView(Context context) {super(context);init();}public AlignTextView(Context context, AttributeSet attrs) {super(context, attrs);TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.AlignTextView);mLineGap = typedArray.getDimension(R.styleable.AlignTextView_lineSpacingExtra, 0.0f);float textSize = typedArray.getDimension(R.styleable. AlignTextView_textSize, 24.0f);int textColor = typedArray.getColor(R.styleable. AlignTextView_textColor, Color.WHITE);// 构建paint对象mPaint = new Paint();mPaint.setAntiAlias(true);mPaint.setColor(textColor);mPaint.setTextSize(textSize);typedArray.recycle();init();}public AlignTextView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.AlignTextView);mLineGap = typedArray.getDimension(R.styleable.AlignTextView_lineSpacingExtra, 0.0f);float textSize = typedArray.getDimension(R.styleable. AlignTextView_textSize, 24.0f);int textColor = typedArray.getColor(R.styleable. AlignTextView_textColor, Color.WHITE);// 构建paint对象mPaint = new Paint();mPaint.setAntiAlias(true);mPaint.setColor(textColor);mPaint.setTextSize(textSize);typedArray.recycle();init();}private void init() {mTexts.clear();}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {super.onMeasure(widthMeasureSpec, heightMeasureSpec);int width = MeasureSpec.getSize(widthMeasureSpec);String text = getText().toString();if (!TextUtils.isEmpty(text)) {mTexts.clear();int iStart = 0;int w = 0;int line = 0;Paint paint=mPaint;for (int i = 0; i < text.length(); i++) {char ch = text.charAt(i);float[] charWidth = new float[1];String charStr = String.valueOf(ch);paint.getTextWidths(charStr, charWidth);if (ch == '\n') {String subText = text.substring(iStart, i);mTexts.add(line, subText);line++;iStart = i + 1;w = 0;} else {w += ((int) Math.ceil(charWidth[0]));if (w > width) {String subText = text.substring(iStart, i);mTexts.add(line, subText);iStart = i;w = 0;line++;} else {if (i == text.length() – 1) {String subText = text.substring(iStart, i+1);mTexts.add(line, subText);}}}}Paint.FontMetrics fontMetrics=paint.getFontMetrics();float fontHeight=fontMetrics.bottom-fontMetrics.top;int size=mTexts.size();float textHeight=0.0f;for(int i=0;i<size;i++){if(i==0){textHeight+=fontHeight;}else{textHeight+=(fontHeight+mLineGap);}}setMeasuredDimension(width,(int)textHeight);}else{mTexts.clear();}}@Overrideprotected void onDraw(Canvas canvas) {int size=mTexts.size();Paint paint=mPaint;Paint.FontMetrics fontMetrics=paint.getFontMetrics();float fontHeight=fontMetrics.bottom-fontMetrics.top;for(int i=0;i<size;i++){String text=mTexts.get(i);canvas.translate(0,i*(mLineGap+fontHeight));canvas.drawText(text,0.0f,0-fontMetrics.top,paint);canvas.translate(0,-i*(mLineGap+fontHeight));}}}2.res/values/attrs.xml文件中增加如下属性
<declare-styleable name="AlignTextView"><attr name="lineSpacingExtra" format="dimension"/><attr name="textSize" format="dimension"/><attr name="textColor" format="reference|color"/></declare-styleable>3.在布局文件中使用自定义的View
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android=""xmlns:algnText=""android:background="#FFFFFF"android:orientation="vertical"android:layout_width="match_parent"android:layout_height="match_parent"><TextViewandroid:text="1.系统TextView显示文字效果如下:"android:layout_width="match_parent"android:layout_height="wrap_content"/><TextViewandroid:layout_marginTop="10dp"android:layout_width="match_parent"android:layout_height="wrap_content"android:lineSpacingExtra="5dp"android:textSize="16sp"android:textColor="#FF00FF00"android:text="我们已将验证码短信发送到你的手机123****4567，超过60秒没收到请点击重发"/><TextViewandroid:layout_marginTop="10dp"android:text="2.自定义TextView显示文字效果如下:"android:layout_width="match_parent"android:layout_height="wrap_content"/><com.example.crab.mycameratest.AlignTextViewandroid:layout_marginTop="10dp"android:text="我们已将验证码短信发送到你的手机123****4567，超过60秒没收到请点击重发"algnText:lineSpacingExtra="5dp"algnText:textSize="16sp"algnText:textColor="#FF00FF00"android:layout_width="match_parent"android:layout_height="wrap_content"/></LinearLayout>
朋友，旭日正在升起，每一份付出，
