import org.andengine.util.mime.MIMEType; //导入依赖的package包/类
public static Intent getSendMailIntent(final Context pContext, final String [] pRecipients, final String pSubject, final String pBody) {
	/* Attempt using ACTION_SENDTO: */
	final Intent sendToIntent = new Intent(Intent.ACTION_SENDTO);

	final StringBuilder sendToUriStringBuilder = new StringBuilder();
	sendToUriStringBuilder.append("mailto:");
	if (!org.andengine.util.TextUtils.isEmpty(pRecipients)) {
		final String recipientsString = TextUtils.join(",", pRecipients);
		sendToUriStringBuilder.append(Uri.encode(recipientsString));
	}
	if (!TextUtils.isEmpty(pSubject)) {
		sendToUriStringBuilder.append("?subject=").append(Uri.encode(pSubject));
	}
	if (!TextUtils.isEmpty(pBody)) {
		if (TextUtils.isEmpty(pSubject)) {
			sendToUriStringBuilder.append("?body=");
		} else {
			sendToUriStringBuilder.append("&body=");
		}
		sendToUriStringBuilder.append(Uri.encode(pBody));
	}

	final String sendToUriString = sendToUriStringBuilder.toString();
	final Uri sendToUri = Uri.parse(sendToUriString);
	sendToIntent.setData(sendToUri);

	if (IntentUtils.isIntentResolvable(pContext, sendToIntent)) {
		return sendToIntent;
	} else {
		/* Fallback using ACTION_SEND: */
		final Intent sendIntent = new Intent(Intent.ACTION_SEND);

		sendIntent.setType(MIMEType.TEXT.getTypeString());
		if (!org.andengine.util.TextUtils.isEmpty(pRecipients)) {
			sendIntent.putExtra(Intent.EXTRA_EMAIL, pRecipients);
		}
		if (!TextUtils.isEmpty(pSubject)) {
			sendIntent.putExtra(Intent.EXTRA_SUBJECT, pSubject);
		}
		if (!TextUtils.isEmpty(pBody)) {
			sendIntent.putExtra(Intent.EXTRA_TEXT, pBody);
		}

		return sendIntent;
	}
}