附上多张图片的电子邮件

Question

我有一个问题，当我想上传很多图片作为附件在电子邮件中，我不能将图片附加到电子邮件中，扩展名不被识别为JPEG(如果我附加单个图片，单个图片成功)。下面是我的源代码:

// imgName is string variable with initialiation above.
ByteArrayOutputStream stream = new ByteArrayOutputStream();                                                                     
Intent email = new Intent(Intent.ACTION_SEND);
email.setType("application/octet-stream");
email.putExtra(Intent.EXTRA_EMAIL, new String[] { "" });
email.putExtra(Intent.EXTRA_SUBJECT, "My Subject");
email.putExtra(Intent.EXTRA_TEXT, "");

ArrayList<Uri> uris = new ArrayList<Uri>();
for (int i=1;i<=6;i++)
{
    Bitmap i1 = null;
int imgID=getBaseContext().getResources().getIdentifier(imgName+"_"+String.valueOf(i), "drawable", getBaseContext().getPackageName());
if (imgID!=0) {
    i1 = Bitmap.createScaledBitmap(BitmapFactory.decodeResource(getResources(), imgID), 200, 200, false);                       
i1.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] bitmapdata = stream.toByteArray();
    String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
    File file = new File(extStorageDirectory,imgName+"_"+String.valueOf(i));                                                                        
    try {
    //file.createNewFile();
    FileOutputStream fos = new FileOutputStream(file);                                  
    fos.write(bitmapdata);                                      
    fos.flush();
    fos.close();
    Uri u = Uri.fromFile(file);
        uris.add(u);
    } catch (FileNotFoundException e) {
    e.printStackTrace();
    } catch (IOException e) {
    e.printStackTrace();
    }
}
}
email.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);

Answer 1

Intent emailIntent;
        emailIntent = new Intent(android.content.Intent.ACTION_SEND_MULTIPLE);
        emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, "");
        // emailIntent.setType("application/zip");
        emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT,
                getString(R.string.ixpenseRecord));
        emailIntent.putExtra(android.content.Intent.EXTRA_TEXT,
                "Images attach...");
        ArrayList<Uri> uris = new ArrayList<Uri>();
        for (String  filepath: arrlistImages) {
            File file = new File(filepath);
            Uri csvURI = Uri.fromFile(file);
            uris.add(csvURI);
        }
        emailIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
        emailIntent.setType("text/html");
        try {
            CommonMethods.openGmailAppIntent(this, emailIntent);
        } catch (Exception e) {
        }

//打开gmail应用程序的另一个方法是下面的代码:

public static void openGmailAppIntent(Context context, Intent intent) {
        final PackageManager pm = context.getPackageManager();
        final List<ResolveInfo> matches = pm.queryIntentActivities(intent, 0);
        ResolveInfo best = null;
        for (final ResolveInfo info : matches)
            if (info.activityInfo.packageName.endsWith(".gm")
                    || info.activityInfo.name.toLowerCase().contains("gmail"))
                best = info;
        if (best != null)
            intent.setClassName(best.activityInfo.packageName,
                    best.activityInfo.name);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        // startActivity(Intent
        // .createChooser(emailIntent, "Email to Send"));
        try {
            context.startActivity(intent);
        } catch (ActivityNotFoundException e) {
            CommonMethods.showMessageForValiDation(context,
                    CommonVariable.VALIDATION_NO_GMAIL_APP,
                    CommonVariable.iXPENSE_APP_FOLDER);
        } catch (Exception e) {
        }
    }

在主代码中，arrlistImages是字符串的数组，它将得到所有的图像路径…然后把这段代码放到你的主活动中。

我希望它对你有用。