Android 生成携带数据的分享图片

1.图片

left：图片 right：加入数据的分享图片.jpg

2.代码

//调用
  new SharePicUtil.Builder(this)
                .setAvatarUrl("http://fd.topitme.com/d/23/ce/1132046888390ce23do.jpg")
                .setDiligentValue(32)
                .setQuestionNum(32)
                .setVideoNum(24)
                .setRankNum(125489)
                .setSignNum(5)
                .setLiveNum(3)
                .setName("Hi,张大麻子")
                .build()
                .setBitmapListener(new SharePicUtil.ShareBitmapListener() {
                    @Override
                    public void shareBitmap(Bitmap bitmap) {
                        iv.setImageBitmap(bitmap);
                    }
                });

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.net.Uri;
import android.support.annotation.Nullable;
import android.text.TextPaint;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.Display;
import android.view.View;

import com.duia.specialarea.R;
import com.facebook.common.executors.CallerThreadExecutor;
import com.facebook.common.references.CloseableReference;
import com.facebook.datasource.DataSource;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.facebook.imagepipeline.core.ImagePipeline;
import com.facebook.imagepipeline.datasource.BaseBitmapDataSubscriber;
import com.facebook.imagepipeline.image.CloseableImage;
import com.facebook.imagepipeline.request.ImageRequest;
import com.facebook.imagepipeline.request.ImageRequestBuilder;

import java.lang.reflect.Method;
import java.math.BigDecimal;

/**
 * @description: 生成分享图片
 * @author: fanrunqi
 * @date: 2018/6/20 11:39
 */
public class SharePicUtil {

    private Activity a;
    private  int picWidth = 1080, picHeight = 1920;   //屏幕宽高单位像素
    private int shareResId = R.drawable.sa_share_bg;  //share 图片路径
    private Bitmap shareBitmap; //重设尺寸后的Bitmap
    private Canvas canvas;    //画板

    private String avatarUrl;//用户头像路径
    private Bitmap avatarBitmap;
    private String name;//用户名字
    private String rankNum;//排名数值
    private String diligentValue;//今日勤奋值
    private String signNum;//连续签到的天数
    private String videoNum;//看视频数
    private String questionNum;//做题数
    private String liveNum;//看直播数

    private SharePicUtil(Builder builder) {
        a = builder.activity;
        avatarUrl = builder.avatarUrl;
        name = builder.name;
        rankNum = builder.rankNum;
        diligentValue =builder.diligentValue;
        signNum = builder.signNum;
        videoNum = builder.videoNum;
        questionNum = builder.questionNum;
        liveNum = builder.liveNum;
        init();
    }

    /**
     * 初始化函数
     */
    private void init(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                //获取资源图片
                Bitmap  bitmap = BitmapFactory.decodeResource(a.getResources(),shareResId);
                //重设图片大小
                shareBitmap = setImgSize(bitmap,picWidth,picHeight);
                //生成canvas
                canvas = new Canvas(shareBitmap);
                //获取用户头像
                url2Bitmap();
            }
        }).start();
    }

    /**
     *  重设图片宽高
     */
    private Bitmap setImgSize(Bitmap bm,int newWidth,int newHeight){
        // 获得图片的宽高.
        int width = bm.getWidth();
        int height = bm.getHeight();
        // 计算缩放比例.
        float scaleWidth = ((float) newWidth) / width;
        float scaleHeight = ((float) newHeight) / height;
        // 取得想要缩放的matrix参数.
        Matrix matrix = new Matrix();
        matrix.postScale(scaleWidth, scaleHeight);
        // 得到新的图片.
        Bitmap newBm = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, true);
        return newBm;
    }

    /**
     * 回调接口
     */
    public ShareBitmapListener listener;
    public void setBitmapListener(ShareBitmapListener listener){
        this.listener =listener;
    }
    public interface ShareBitmapListener{
        void shareBitmap(Bitmap bitmap);
    }

    /**
     * Fresco获取头像的bitmap
     */
    private void url2Bitmap(){

        ImageRequest imageRequest = ImageRequestBuilder
                .newBuilderWithSource(Uri.parse(avatarUrl))
                .setProgressiveRenderingEnabled(true)
                .build();

        ImagePipeline imagePipeline = Fresco.getImagePipeline();
        DataSource<CloseableReference<CloseableImage>>
                dataSource = imagePipeline.fetchDecodedImage(imageRequest,this);

        dataSource.subscribe(new BaseBitmapDataSubscriber() {

            @Override
            public void onNewResultImpl(@Nullable Bitmap bitmap) {
                //重设大小为48dp
                int pix = DensityUtil.dip2px(a,40f);
                avatarBitmap = getCircleBitmap(setImgSize(bitmap,pix,pix));
                //画数据信息
                drawInfo();
            }

            @Override
            public void onFailureImpl(DataSource dataSource) {

            }
        }, CallerThreadExecutor.getInstance());

    }

    /**
     * 获取圆形图片
     * @param bitmap
     * @return Bitmap
     * @author caizhiming
     */
    private Bitmap getCircleBitmap(Bitmap bitmap) {
        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
                bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xff424242;

        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        int x = bitmap.getWidth();

        canvas.drawCircle(x / 2, x / 2, x / 2, paint);
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);
        return output;

    }
    /**
     * 在图片上画文字
     */
    private void drawInfo(){
        Paint mBitPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        mBitPaint.setFilterBitmap(true);
        mBitPaint.setDither(true);
        //名字
        Paint mPaint = new TextPaint();
        mPaint.setColor(Color.parseColor("#778aff"));
        mPaint.setAntiAlias(true);
        mPaint.setTextAlign(Paint.Align.LEFT);
        mPaint.setTextSize(DensityUtil.sp2px(a,18));
        canvas.drawText(name,(float)(picWidth*(185/360.0)),(float)(picHeight*(90/640.0)), mPaint);

        //绘制头像
        canvas.drawBitmap(avatarBitmap, (float)(picWidth*(279/360.0)), (float)(picHeight*(65/640.0)), mBitPaint);

        //勤奋值排名
        mPaint.setColor(Color.parseColor("#798afe"));
        mPaint.setTextAlign(Paint.Align.CENTER);
        mPaint.setTextSize(DensityUtil.sp2px(a,42));
        canvas.drawText(rankNum,(float)(picWidth*(99/360.0)),(float)(picHeight*(234/640.0)), mPaint);

        //本周勤奋排名
        mPaint.setColor(Color.parseColor("#022222"));
        mPaint.setTextSize(DensityUtil.sp2px(a,14));
        canvas.drawText("本周勤奋排名",(float)(picWidth*(99/360.0)),(float)(picHeight*(254/640.0)), mPaint);

        //今日+
        mPaint.setColor(Color.parseColor("#778aff"));
        mPaint.setTextSize(DensityUtil.sp2px(a,12));
        canvas.drawText("今日+",(float)(picWidth*(226/360.0)),(float)(picHeight*(373/640.0)), mPaint);

        mPaint.setTextSize(DensityUtil.sp2px(a,19));
        float textWidth = mPaint.measureText(diligentValue);//计算宽度
        canvas.drawText(diligentValue,(float)(picWidth*(250 /360.0)),(float)(picHeight*(373/640.0)), mPaint);

        //勤奋值
        mPaint.setTextSize(DensityUtil.sp2px(a,12));
        canvas.drawText("勤奋值",(float)(picWidth*(260/360.0)+textWidth),(float)(picHeight*(373/640.0)), mPaint);


        //已连续签到
        mPaint.setColor(Color.parseColor("#666666"));
        mPaint.setTextSize(DensityUtil.sp2px(a,12));
        canvas.drawText("已连续签到",(float)(picWidth*(241/360.0)),(float)(picHeight*(395/640.0)), mPaint);

        mPaint.setTextSize(DensityUtil.sp2px(a,20));
        float textWidth1 = mPaint.measureText(signNum);//计算宽度
        canvas.drawText(signNum,(float)(picWidth*(277/360.0)),(float)(picHeight*(395/640.0)), mPaint);

        mPaint.setTextSize(DensityUtil.sp2px(a,12));
        canvas.drawText("天",(float)(picWidth*(283/360.0)+textWidth1),(float)(picHeight*(395/640.0)), mPaint);

        //看视频数
        mPaint.setFakeBoldText(false);
        mPaint.setColor(Color.parseColor("#999999"));
        mPaint.setTextSize(DensityUtil.sp2px(a,10));
        canvas.drawText("看视频数",(float)(picWidth*(68/360.0)),(float)(picHeight*(550/640.0)), mPaint);

        mPaint.setFakeBoldText(true);
        mPaint.setColor(Color.parseColor("#666666"));
        mPaint.setTextSize(DensityUtil.sp2px(a,16));
        canvas.drawText(videoNum,(float)(picWidth*(68/360.0)),(float)(picHeight*(570/640.0)), mPaint);

        //已做题数
        mPaint.setFakeBoldText(false);
        mPaint.setColor(Color.parseColor("#999999"));
        mPaint.setTextSize(DensityUtil.sp2px(a,10));
        canvas.drawText("已做题数",(float)(picWidth*(125/360.0)),(float)(picHeight*(550/640.0)), mPaint);

        mPaint.setFakeBoldText(true);
        mPaint.setColor(Color.parseColor("#666666"));
        mPaint.setTextSize(DensityUtil.sp2px(a,16));
        canvas.drawText(questionNum,(float)(picWidth*(125/360.0)),(float)(picHeight*(570/640.0)), mPaint);

        //已看直播数
        mPaint.setFakeBoldText(false);
        mPaint.setColor(Color.parseColor("#999999"));
        mPaint.setTextSize(DensityUtil.sp2px(a,10));
        canvas.drawText("已看直播数",(float)(picWidth*(178/360.0)),(float)(picHeight*(550/640.0)), mPaint);

        mPaint.setFakeBoldText(true);
        mPaint.setColor(Color.parseColor("#666666"));
        mPaint.setTextSize(DensityUtil.sp2px(a,16));
        canvas.drawText(liveNum,(float)(picWidth*(178/360.0)),(float)(picHeight*(570/640.0)), mPaint);

        a.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                listener.shareBitmap(shareBitmap);
            }
        });

    }
    /**
     * 建造
     */
    public static final class Builder {

        private Activity activity;
        private String avatarUrl;//用户头像路径
        private String name;//用户名字
        private String rankNum;//排名数值
        private String diligentValue;//今日勤奋值
        private String signNum;//连续签到的天数
        private String videoNum;//看视频数
        private String questionNum;//做题数
        private String liveNum;//看直播数

        public Builder(Activity context) {
            this.activity = context;
        }

        public Builder setAvatarUrl(String val) {
            avatarUrl = val;
            return this;
        }
        public Builder setName(String val) {
            name = val;
            return this;
        }
        public Builder setRankNum(int val) {
            rankNum = String.valueOf(val);
            return this;
        }
        public Builder setDiligentValue(int val) {
            diligentValue = String.valueOf(val);
            return this;
        }
        public Builder setSignNum(int val) {
            signNum = String.valueOf(val);
            return this;
        }
        public Builder setVideoNum(int val) {
            videoNum = String.valueOf(val);
            return this;
        }
        public Builder setQuestionNum(int val) {
            questionNum = String.valueOf(val);
            return this;
        }
        public Builder setLiveNum(int val) {
            liveNum = String.valueOf(val);
            return this;
        }

        public SharePicUtil build() {
           return new SharePicUtil(this);
        }
    }


}

DensityUtil上一篇文章贴了代码，这里就不再重复