Android TextView 因为特殊字符(半角圆角等问题)在折行的时候各种不爽 ,不规则折行

释放双眼,带上耳机,听听看~!

项目当中显示一个金额的范围 类似这种 ¥1200.00-¥1300.00 然后这行数据在显示的时候不能再一行全部显示需要换行,但是换行是从第二个¥开始的 然后第一行后面其实还能写,这就悲剧了,没看法百度了一下需要动源码,尼玛这我就不能忍了,后来还是自定义写了一下TextView 有点点 xiaoBUG 但是问题不大,展示少量文字还是可以的

贴代码 不费话

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Build;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.widget.TextView;
import org.json.JSONArray;
import org.json.JSONException;
import java.lang.reflect.Field;
public class XRTextView extends TextView {
private final String namespace = "http://schemas.android.com/apk/res/android";
    private String text;
    private float textSize;
    private float paddingLeft;
    private float paddingRight;
    private float marginLeft;
    private float marginRight;
    private int textColor;
    private JSONArray colorIndex;
    private Paint paint1 = new Paint();
    private Paint paintColor = new Paint();
    private float textShowWidth;
    private float Spacing = 0;
    private int mLineCount=-1;
    private float LineSpacing = 1.3f;//行与行的间距
public XRTextView(Context context, AttributeSet attrs) {
super(context, attrs);
text = attrs.getAttributeValue(
namespace, "text");
textSize = attrs.getAttributeIntValue(namespace, "textSize", dip2px(context, 10));//字体大小
textColor = attrs.getAttributeIntValue(namespace, "textColor", Color.rgb(255, 98, 17));//字体颜色255 69 0
paddingLeft = attrs.getAttributeIntValue(namespace, "paddingLeft", 0);
paddingRight = attrs.getAttributeIntValue(namespace, "paddingRight", 0);
marginLeft = attrs.getAttributeIntValue(namespace, "marginLeft", 0);
marginRight = attrs.getAttributeIntValue(namespace, "marginRight", 0);
paint1.setTextSize(textSize);
paint1.setColor(textColor);
paint1.setAntiAlias(true);
paintColor.setAntiAlias(true);
paintColor.setTextSize(textSize);
paintColor.setColor(Color.BLUE);
}
public static int dip2px(Context context, float dpValue) {
final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
}
public XRTextView(Context context, float textSize, int textColor, float paddingLeft, float paddingRight, float marginLeft, float marginRight) {
super(context);
        this.textSize = textSize;
        this.textColor = textColor;
        this.paddingLeft = paddingLeft;
        this.paddingRight = paddingRight;
        this.marginLeft = marginLeft;
        this.marginRight = marginRight;
paint1.setTextSize(textSize);
paint1.setColor(textColor);
paint1.setAntiAlias(true);
paintColor.setAntiAlias(true);
paintColor.setTextSize(textSize);
paintColor.setColor(Color.BLUE);
}
public JSONArray getColorIndex() {
return colorIndex;
}
public void setColorIndex(JSONArray colorIndex) {
this.colorIndex = colorIndex;
}
/**
     * 传入一个索引,判断当前字是否被高亮
     *
     * @param index
* @return
* @throws JSONException
     */
public boolean isColor(int index) throws JSONException {
if (colorIndex == null) {
return false;
}
for (int i = 0; i < colorIndex.length(); i++) {
JSONArray array = colorIndex.getJSONArray(i);
            int start = array.getInt(0);
            int end = array.getInt(1) - 1;
            if (index >= start && index <= end) {
return true;
}
}
return false;
}
@Override
protected void onDraw(Canvas canvas) {
// textShowWidth = getMeasuredWidth() - paddingLeft - paddingRight - marginLeft - marginRight;
int lineCount = 0;
text = this.getText()+"";
        if (TextUtils.isEmpty(text)) return;
        char[] textCharArray = text.toCharArray();
// 已绘的宽度
float drawedWidth = 0;
        float charWidth;
        int length=textCharArray.length;
        for (int i = 0; i < length; i++) {
charWidth = paint1.measureText(textCharArray, i, 1);
            if (textCharArray[i] == 'n') {
lineCount++;
drawedWidth = 0;
                continue;
}
if (textShowWidth - drawedWidth < charWidth) {
lineCount++;
drawedWidth = 0;
}
/*boolean color = false;
            try {
                color = isColor(i);
            } catch (JSONException e1) {
                e1.printStackTrace();
            }
            if (color) {
                canvas.drawText(textCharArray, i, 1, paddingLeft + drawedWidth,
                        (lineCount + 1) * textSize * LineSpacing, paintColor);
            } else {
                canvas.drawText(textCharArray, i, 1, paddingLeft + drawedWidth,
                        (lineCount + 1) * textSize * LineSpacing, paint1);
            }*/
canvas.drawText(textCharArray, i, 1, paddingLeft + drawedWidth,
(lineCount + 1) * textSize * LineSpacing, paint1);
            if (textCharArray[i] > 127 && textCharArray[i] != '、' && textCharArray[i] != ',' && textCharArray[i] != '。' && textCharArray[i] != ':' && textCharArray[i] != '!') {
drawedWidth += charWidth + Spacing;
} else {
drawedWidth += charWidth;
}
}
}
public float getSpacing() {
return Spacing;
}
public void setSpacing(float spacing) {
Spacing = spacing;
}
public float getMYLineSpacing() {
return LineSpacing;
}
public void setMYLineSpacing(float lineSpacing) {
LineSpacing = lineSpacing;
}
public float getMYTextSize() {
return textSize;
}
public void setMYTextSize(float textSize) {
this.textSize = textSize;
paint1.setTextSize(textSize);
paintColor.setTextSize(textSize);
}
public void onMeasure(int w,int h){
super.onMeasure(w, h);
setMeasuredDimension(getMeasuredWidth(), (int) ((measureLineCount() + 1) * (int) textSize * LineSpacing + 10));
}
private int measureLineCount(){
if(mLineCount!=-1){
return  mLineCount;
}
if(Build.VERSION.SDK_INT>=16){
try {
LineSpacing=getLineSpacingMultiplier();
} catch (Exception e) {
e.printStackTrace();
}
}else{
try {
Field   field =   this.getClass().getDeclaredField("LineSpacing");
field.setAccessible(true);
LineSpacing=field.getFloat(this);
} catch (Exception e) {
e.printStackTrace();
}
}
textShowWidth = getMeasuredWidth() - paddingLeft - paddingRight - marginLeft - marginRight;
        int lineCount = 0;
text = this.getText()+"";
        if (TextUtils.isEmpty(text)) return 0;
        char[] textCharArray = text.toCharArray();
// 已绘的宽度
float drawedWidth = 0;
        float charWidth;
        int length=textCharArray.length;
        for (int i = 0; i < length; i++) {
charWidth = paint1.measureText(textCharArray, i, 1);
            if (textCharArray[i] == 'n') {
lineCount++;
drawedWidth = 0;
                continue;
}
if (textShowWidth - drawedWidth < charWidth) {
lineCount++;
drawedWidth = 0;
}
if (textCharArray[i] > 127 && textCharArray[i] != '、' && textCharArray[i] != ',' && textCharArray[i] != '。' && textCharArray[i] != ':' && textCharArray[i] != '!') {
drawedWidth += charWidth + Spacing;
} else {
drawedWidth += charWidth;
}
}
mLineCount=lineCount;
        return lineCount;
}
}

 

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