[英]Sending inline images using Smack XMPP
我將要創建一個簡單的xmpp java客戶端應用程序,為此,我正在考慮使用Smack XMPP庫,該庫運行良好。
客戶端的一項功能應該是將嵌入式圖像發送到您的chatpartner。 我瀏覽了SMACK的javadoc,但無法找到如何使用SMACK / XMPP發送圖像或一般二進制數據的方法。 我並不是在說接收用戶必須接受的標准文件傳輸,而是在消息中可以發送的圖像。 SMACK / XMPP是否可能? 有人可以提供例子嗎?
您可以通過使用smth使其默認為接受(不會提示用戶),例如:
final FileTransferManager manager = new FileTransferManager(connection); //Use your xmpp connection
manager.addFileTransferListener(new FileTransferListener() {
public void fileTransferRequest(FileTransferRequest request) {
IncomingFileTransfer transfer = request.accept();
try {
InputStream input = transfer.recieveFile();
//This will be a binary stream and you can process it. Create image and display it inline in your chat app.
} catch (XMPPException e) {
e.printStackTrace();
}
}
}
您可以嘗試以下鏈接: https : //www.javacodegeeks.com/2012/08/android-file-transfer-with-asmack-and.html
對於文件發送
FileTransferManager manager = new FileTransferManager(connection);
OutgoingFileTransfer transfer = manager.createOutgoingFileTransfer('usre2@myHost/Smack');
File file = new File(filenameWithPath);
try {
transfer.sendFile(file, 'test_file');
} catch (XMPPException e) {
e.printStackTrace();
}
while(!transfer.isDone()) {
if(transfer.getStatus().equals(Status.error)) {
System.out.println('ERROR!!! ' + transfer.getError());
} else if (transfer.getStatus().equals(Status.cancelled)
|| transfer.getStatus().equals(Status.refused)) {
System.out.println('Cancelled!!! ' + transfer.getError());
}
try {
Thread.sleep(1000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
if(transfer.getStatus().equals(Status.refused) || transfer.getStatus().equals(Status.error)
|| transfer.getStatus().equals(Status.cancelled)){
System.out.println('refused cancelled error ' + transfer.getError());
} else {
System.out.println('Success');
}
文件接收:
FileTransferManager manager = new FileTransferManager(connection);
manager.addFileTransferListener(new FileTransferListener() {
public void fileTransferRequest(final FileTransferRequest request) {
new Thread(){
@Override
public void run() {
IncomingFileTransfer transfer = request.accept();
File mf = Environment.getExternalStorageDirectory();
File file = new File(mf.getAbsoluteFile()+'/DCIM/Camera/' + transfer.getFileName());
try{
transfer.recieveFile(file);
while(!transfer.isDone()) {
try{
Thread.sleep(1000L);
}catch (Exception e) {
Log.e('', e.getMessage());
}
if(transfer.getStatus().equals(Status.error)) {
Log.e('ERROR!!! ', transfer.getError() + '');
}
if(transfer.getException() != null) {
transfer.getException().printStackTrace();
}
}
}catch (Exception e) {
Log.e('', e.getMessage());
}
};
}.start();
}
});
您可以嘗試以下方法:
public boolean sendFiles(XMPPConnection con,String fullJID,String filePath){
File files=new File(filePath);
FileTransferManager fileManager=new FileTransferManager(con);
OutgoingFileTransfer sendfile=fileManager.createOutgoingFileTransfer(fullJID);
try {
sendfile.sendFile(files, "Sending file");
return true;
} catch (XMPPException e) {
e.printStackTrace();
return false;
}
}
public void receiveFiles(XMPPConnection con,final String filePath){
FileTransferManager fileManager=new FileTransferManager(con);
fileManager.addFileTransferListener(new FileTransferListener() {
@Override
public void fileTransferRequest(FileTransferRequest prequest) {
//System.out.println("The file received from: " + prequest.getRequestor());
System.out.println("filePath:"+filePath+"||FileName:"+prequest.getFileName());
file = new File(filePath +"\\" +prequest.getFileName());
request = prequest;
IncomingFileTransfer infiletransfer =request.accept();
try {
infiletransfer.recieveFile(file);
System.out.println("success!");
} catch (XMPPException e) {
e.printStackTrace();
}
}
});
}
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