自动排版的edittext

package com.yuedong.ailian.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.support.v4.content.ContextCompat;
import android.util.AttributeSet;
import android.view.View;
import android.widget.EditText;

import com.yuedong.ailian.R;

import org.json.JSONArray;
import org.json.JSONException;

/**
 * Created by shaomiao on 2017/11/20.
 */

public class TypeSettingEditView extends EditText {

    private final String namespace = "rong.android.TextView";
    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 float LineSpacing = 1.3f;//行与行的间距

    public TypeSettingEditView(Context context, AttributeSet attrs) {
        super(context, attrs);
        text = attrs.getAttributeValue(
                "http://schemas.android.com/apk/res/android", "text");
        textSize = attrs.getAttributeIntValue(namespace, "textSize", 35);//字体大小
        textColor = attrs.getAttributeIntValue(namespace, "textColor", ContextCompat.getColor(getContext(),R.color.gray));//字体颜色
        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(ContextCompat.getColor(getContext(),R.color.gray));
    }
    public TypeSettingEditView(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(ContextCompat.getColor(getContext(),R.color.gray));
    }

    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) {
//  super.onDraw(canvas);
        View view=(View)this.getParent();
        textShowWidth=view.getMeasuredWidth()-paddingLeft - paddingRight - marginLeft - marginRight;
        int lineCount = 0;

        text = this.getText().toString();//.replaceAll("\n", "\r\n");
        if(text==null)return;
        char[] textCharArray = text.toCharArray();
        // 已绘的宽度
        float drawedWidth = 0;
        float charWidth;
        for (int i = 0; i < textCharArray.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) {
                // TODO Auto-generated catch block
                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);
            }
            if(textCharArray[i] > 127 && textCharArray[i] != '、' && textCharArray[i] != '，' && textCharArray[i] != '。' && textCharArray[i] != '：' && textCharArray[i] != '！'){
                drawedWidth += charWidth + Spacing;

            }else{
                drawedWidth += charWidth;
            }
        }
        setHeight((int) ((lineCount + 1) * (int) textSize * LineSpacing + 10));
    }
    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);
    }
}

解决这个问题

自动排版问题