自定义垂直文字view

package app.inter.com.heartprogress;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Rect;import android.util.AttributeSet;import android.util.Log;import android.view.View;/** * Created by li.fuzhen on 2017/2/4. */public class VerticalTextView extends View {    private Paint mPaint;    private String mText;    private static final int ORIENTATION_HORIZONTAL = 0;    private static final int ORIENTATION_VERTICAL = 1;    private int orientation = ORIENTATION_HORIZONTAL;    private Rect rect = new Rect();    private int mHeight;    private int mCurrentHeight;    private String singleText;    private int mWithOnce = 1;    private int index;    public VerticalTextView(Context context, AttributeSet attrs) {        super(context, attrs);        init();        if (attrs != null) {            TypedArray typeArray = context.obtainStyledAttributes(attrs, R.styleable.VerticalTextView);            mText = typeArray.getString(R.styleable.VerticalTextView_tv_text);            orientation = typeArray.getInt(R.styleable.VerticalTextView_orientation, ORIENTATION_HORIZONTAL);            typeArray.recycle();        }        mPaint.getTextBounds(mText, 0, mText.length(), rect);    }    private void init() {        mPaint = new Paint();        mPaint.setAntiAlias(true);        mPaint.setStrokeWidth(1f);        mPaint.setStyle(Paint.Style.FILL);        mPaint.setColor(Color.BLACK);        mPaint.setTextSize(40f);    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        super.onSizeChanged(w, h, oldw, oldh);        mHeight = getHeight();        Log.e("zxc", "-----" + rect.width() / mHeight);    }    @Override    protected void onDraw(Canvas canvas) {        Log.e("zxc", "2");        if (orientation == ORIENTATION_VERTICAL) {            for (int i = 0; i < mText.length(); i++) {                singleText = Character.toString(mText.charAt(i));                mCurrentHeight = rect.height() * (index + 1);                index++;                if (mCurrentHeight >= mHeight) {                    mWithOnce++;                    index = 0 + 1;                    mCurrentHeight = rect.height();                }                canvas.drawText(singleText, getWidth() - 80 * mWithOnce, mCurrentHeight, mPaint);//30 是设置的单个文字大小            }        }    }}

attrs代码如下

name="VerticalTextView">    name="tv_text" format="string" />    name="orientation">        name="vertical" value="1" />        name="horizontal" value="0" />

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