Android自定义可以在文字上方显示备注的View

闲着没事干写写这个，算坐标要算晕了，恐怕半个月后自己都要看不懂了

package com.example.texttest;


import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.Rect;

public class KString{
    private String[] mKString;
    private Paint mainPaint;
    private Paint subPaint;
    public int mainH,subH,mainW,subW,allW,allH;
    private Point mainStart,subStart;
    public KString(String main,String sub){
        mKString = new String[2];
        
        subPaint=new Paint();
        mainPaint=new Paint();
        subPaint.setAntiAlias(true);
        mainPaint.setAntiAlias(true);
        subPaint.setColor(Color.BLACK);
        mainPaint.setColor(Color.BLACK);
        mainPaint.setTextSize(20);
        subPaint.setTextSize(13);
        
        setText(main, sub);
        
        
    }
    
    public void setText(String main,String sub){
        mKString[0]=main;
        mKString[1]=sub;
        
        Rect mainR=new Rect();
        mainPaint.getTextBounds(mKString[0], 0, mKString[0].length(), mainR);
        Rect subR=new Rect();
        subPaint.getTextBounds(mKString[1], 0, mKString[1].length(), subR);
        mainH=mainR.bottom-mainR.top+1;
        mainW=mainR.right-mainR.left;
        subH=subR.bottom-subR.top+1;
        subW=subR.right-subR.left;
        mainStart=new Point(0, 0);
        subStart=new Point(0, 0);
        
        allW=Math.max(mainW, subW);
        allH=mainH+subH;
    }
    
    public void draw(Canvas c){
        c.drawText(mKString[0], mainStart.x, mainStart.y, mainPaint);
        c.drawText(mKString[1], subStart.x, subStart.y, subPaint);
            
    }
    
    public void setStartPoint(int x,int y,int mainH,int subH){
    
            y=y+(mainH+subH)-2;
            mainStart.x=x+(allW-mainW)/2;;
            mainStart.y=y;
            subStart.y=y-mainH;
            subStart.x=x+(allW-subW)/2;
            
        
    }
    
    public int getHeight(){
        return allH;
    }
    
    public int getWidth(){
        return allW;
    }
    
    
    
    
    


}

package com.example.texttest;

import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.View;

public class MyText extends View {
    
    List<KString> mData;
    private int mainH=0,subH=0,charPadding=3,allW;
    

    public MyText(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
        mData=new ArrayList<KString>();
        
        
    }
    
    public MyText(Context context){
        super(context);
    }
    
    public void setKString(String main,String sub){
        KString ks=new KString(main, sub);
        mData.add(ks);
        if(ks.mainH>mainH)
            mainH=ks.mainH;
        if(ks.subH>subH)
            subH=ks.subH;
    }
    
    public void setKString(String s){
        String[] sa=s.split(";");
        for(int i=0;i<sa.length;i+=2){
            setKString(sa[i], sa[i+1]);
        }
    }
    @Override
    protected void onDraw(Canvas canvas) {
        // TODO Auto-generated method stub
        allW=0;
        for(KString item:mData){
            item.setStartPoint(allW, 0, mainH, subH);
            allW+=item.allW+charPadding;
            item.draw(canvas);
        }
        
        
    }
    
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        // TODO Auto-generated method stub
        setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), mainH+subH);
    }
    
    
    
    

}

package com.example.texttest;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        ((MyText)findViewById(R.id.myText1)).setKString("あんな; ;空;そら;で; ;ミサイル;misairu;が; ;飛;と;ぶのなら; ");
        ((MyText)findViewById(R.id.myText2)).setKString("そんな; ;物;もの;で; ;幸;しあわ;せを; ;乞;こ;うのなら; ");
        ((MyText)findViewById(R.id.myText3)).setKString("優;やさ;しい; ;人;ひと;にならなくちゃ; ");
        ((MyText)findViewById(R.id.myText4)).setKString("僕;ぼく;は; ;僕;ぼく;を; ;肯定;こうてい;していけるかな; ");
        
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <com.example.texttest.MyText
        android:id="@+id/myText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <com.example.texttest.MyText
        android:id="@+id/myText2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/myText1"
        android:layout_marginTop="10dp" />

    <com.example.texttest.MyText
        android:id="@+id/myText3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/myText2"
        android:layout_marginTop="10dp" />

    <com.example.texttest.MyText
        android:id="@+id/myText4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/myText3"
        android:layout_marginTop="10dp" />

</RelativeLayout>