Android 微信分享Bug自用

微信分享Webpage 有一个最大KB限制

32

自用工具修改一下做个笔记

所以即便是缩略图也要压缩

    //  压缩
        newBmp.compress(Bitmap.CompressFormat.PNG, 100, output);
        int options = 100;
        while (output.toByteArray().length > 32&& options != 10) {
            output.reset(); //清空output
            newBmp.compress(Bitmap.CompressFormat.JPEG, options, output);//这里压缩options%，把压缩后的数据存放到output中
            options -= 10;
        }
        
        //压缩完毕

package net.arvin.socialhelper;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.URL;
import java.util.List;

import javax.net.ssl.HttpsURLConnection;


final class SocialUtil {

    static String get(URL url) throws Exception {
        HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
        if (conn.getResponseCode() == 200) {
            InputStream is = conn.getInputStream();
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int len;
            while (-1 != (len = is.read(buffer))) {
                out.write(buffer, 0, len);
                out.flush();
            }
            return out.toString("utf-8");
        }
        return null;
    }

    static String getAppStateName(Context context) {
        String packageName = context.getPackageName();
        int beginIndex = 0;
        if (packageName.contains(".")) {
            beginIndex = packageName.lastIndexOf(".");
        }
        return packageName.substring(beginIndex);
    }

    static String getQQSex(String gender) {
        return "男".equals(gender) ? "M" : "F";
    }

    static String getWXSex(String gender) {
        return "1".equals(gender) ? "M" : "F";
    }

    static String getWBSex(String gender) {
        return "m".equals(gender) ? "M" : "F";
    }

    static String buildTransaction(String type) {
        return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();
    }

    static byte[] bmpToByteArray(final Bitmap bmp, boolean needThumb) {
        Bitmap newBmp;
        if (needThumb) {
            int width = bmp.getWidth();
            int height = bmp.getHeight();
            if (width > height) {
                height = height * 150 / width;
                width = 150;
            } else {
                width = width * 150 / height;
                height = 150;
            }
            newBmp = Bitmap.createScaledBitmap(bmp, width, height, true);
            bmp.recycle();
        } else {
            newBmp = bmp;
        }
        ByteArrayOutputStream output = new ByteArrayOutputStream();

        //  压缩
        newBmp.compress(Bitmap.CompressFormat.PNG, 100, output);
        int options = 100;
        while (output.toByteArray().length > 32&& options != 10) {
            output.reset(); //清空output
            newBmp.compress(Bitmap.CompressFormat.JPEG, options, output);//这里压缩options%，把压缩后的数据存放到output中
            options -= 10;
        }

        //压缩完毕


        newBmp.compress(Bitmap.CompressFormat.JPEG, 100, output);
        newBmp.recycle();

        byte[] result = output.toByteArray();
        try {
            output.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

        return result;
    }
    
    static boolean isQQInstalled(Context context) {
        final PackageManager packageManager = context.getPackageManager();
        List packageInfo = packageManager.getInstalledPackages(0);
        if (packageInfo != null) {
            for (int i = 0; i < packageInfo.size(); i++) {
                String pn = packageInfo.get(i).packageName;
                if (pn.equals("com.tencent.mobileqq")) {
                    return true;
                }
            }
        }
        return false;
    }
}