我正在使用XMPP（SAMCK）开发聊天应用程序。我使用reclycerview显示了对话。我想在图像上传到服务器时显示百分比（使用rest api）。所以我使用了intentservice并通过localbroastreceiver更新百分比。但我无法滚动reclycerview。我也无法显示图像的百分比。
Please give comments.
ProgressRequestBody.java
To get percentage I have used this class.
public class ProgressRequestBody extends RequestBody {
private File mFile;
private String mPath;
private String stanzaId;
private UploadCallbacks mListener;
private static final int DEFAULT_BUFFER_SIZE = 2048;
public interface UploadCallbacks {
void onProgressUpdate(int percentage,String StandzId);
void onError();
void onFinish();
}
public ProgressRequestBody(final File file, String stanzaID, final UploadCallbacks listener) {
mFile = file;
mListener = listener;
this.stanzaId=stanzaID;
}
@Override
public MediaType contentType() {
// i want to upload only images
return MediaType.parse("image/*");
}
@Override
public long contentLength() throws IOException {
return mFile.length();
}
@Override
public void writeTo(BufferedSink sink) throws IOException {
long fileLength = mFile.length();
byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
FileInputStream in = new FileInputStream(mFile);
long uploaded = 0;
try {
int read;
Handler handler = new Handler(Looper.getMainLooper());
while ((read = in.read(buffer)) != -1) {
// update progress on UI thread
handler.post(new ProgressUpdater(uploaded, fileLength,stanzaId));
uploaded += read;
sink.write(buffer, 0, read);
}
} finally {
in.close();
}
}
private class ProgressUpdater implements Runnable {
private long mUploaded;
private String mStandzId;
private long mTotal;
public ProgressUpdater(long uploaded, long total,String standzId) {
mUploaded = uploaded;
mTotal = total;
mStandzId=standzId;
}
@Override
public void run() {
mListener.onProgressUpdate((int)(100 * mUploaded / mTotal),mStandzId);
}
}
}
updateservice.class
This is used to call api in background.
public class UploadService extends IntentService implements ProgressRequestBody.UploadCallbacks {
// TODO: Rename actions, choose action names that describe tasks that this
// IntentService can perform, e.g. ACTION_FETCH_NEW_ITEMS
private static final String ACTION_FOO = "com.techno.chat_sdk.utilz.action.FOO";
private static final String ACTION_BAZ = "com.techno.chat_sdk.utilz.action.BAZ";
// TODO: Rename parameters
private static final String EXTRA_PARAM1 = "com.techno.chat_sdk.utilz.extra.PARAM1";
private static final String EXTRA_PARAM2 = "com.techno.chat_sdk.utilz.extra.PARAM2";
public UploadService() {
super("UploadService");
}
/**
* Starts this service to perform action Foo with the given parameters. If
* the service is already performing a task this action will be queued.
*
* @see IntentService
*/
// TODO: Customize helper method
public static void startActionFoo(Context context, String param1, String param2) {
Intent intent = new Intent(context, UploadService.class);
intent.setAction(ACTION_FOO);
intent.putExtra(EXTRA_PARAM1, param1);
intent.putExtra(EXTRA_PARAM2, param2);
context.startService(intent);
}
/**
* Starts this service to perform action Baz with the given parameters. If
* the service is already performing a task this action will be queued.
*
* @see IntentService
*/
// TODO: Customize helper method
public static void startActionBaz(Context context, String param1, String param2) {
Intent intent = new Intent(context, UploadService.class);
intent.setAction(ACTION_BAZ);
intent.putExtra(EXTRA_PARAM1, param1);
intent.putExtra(EXTRA_PARAM2, param2);
context.startService(intent);
}
@Override
protected void onHandleIntent(Intent intent) {
if (intent != null) {
/*final String action = intent.getAction();
if (ACTION_FOO.equals(action)) {
final String param1 = intent.getStringExtra(EXTRA_PARAM1);
final String param2 = intent.getStringExtra(EXTRA_PARAM2);
handleActionFoo(param1, param2);
} else if (ACTION_BAZ.equals(action)) {
final String param1 = intent.getStringExtra(EXTRA_PARAM1);
final String param2 = intent.getStringExtra(EXTRA_PARAM2);
handleActionBaz(param1, param2);
}*/
Download Download = intent.getParcelableExtra("Download");
File file=new File(Download.getDestinationpath());
ProgressRequestBody fileBody = new ProgressRequestBody(file,Download.getStandzId(), UploadService.this);
MultipartBody.Part filePart = MultipartBody.Part.createFormData("file", file.getName(), fileBody);
FileUpandDown mEdit = ApiConfiguration.getInstance().getApiBuilder().create(FileUpandDown.class);
final Call<JsonObject> request = mEdit.Fileupload(filePart);
request.enqueue(new Callback<JsonObject>() {
@Override
public void onResponse(Call<JsonObject> call, Response<JsonObject> response) {
if(response.body()!=null){
String url=response.body().get("file_url").getAsString();
if(url!=null){
if (Commonclass.isNetworkConnected(UploadService.this)){
/*json.items.get(0).url=url; // update url to json.
json.items.set(0,items);
duce_Xmppservice.sendMessage(juid, gson.toJson(json), message, false);*/}
}
}
}
@Override
public void onFailure(Call<JsonObject> call, Throwable t) {
System.out.println("Failure" + t.toString());
}
});
}
}
/**
* Handle action Foo in the provided background thread with the provided
* parameters.
*/
private void handleActionFoo(String param1, String param2) {
// TODO: Handle action Foo
throw new UnsupportedOperationException("Not yet implemented");
}
/**
* Handle action Baz in the provided background thread with the provided
* parameters.
*/
private void handleActionBaz(String param1, String param2) {
// TODO: Handle action Baz
throw new UnsupportedOperationException("Not yet implemented");
}
@Override
public void onProgressUpdate(int percentage, String StandzId) {
ContentValues values = new ContentValues();
values.put(DataHelper.CHAT_Msg_DownOrUpPercentage, percentage);
MyApplication.writable.update(DataHelper.CHAT_TABLE_NAME, values, DataHelper.CHAT_Msg_StanzaId + " = ?",
new String[]{StandzId});
Intent intent = new Intent(Constants.ProgreessUpdate);
LocalBroadcastManager.getInstance(MyApplication.getAppContext()).sendBroadcast(intent);
}
@Override
public void onError() {
}
@Override
public void onFinish() {
}
}
singlechatActivity.java (udpate data to list from ocalbroastreceiver)
for(ChatMessages chatMess: section.chatMessages){
if(chatMess.StanzaId.equals(StandzId)){
chatMess.DownUpPercentage=percentage;
section.chatMessages.set(i,chatMess);
strickyAdapter.notifySectionItemChanged(j,i);
}
i++;
}
//StrickyAdapter
switch (jsonMaking.Messagetype){
case "text":
ivh.outgoing_msg.setText(jsonMaking.items.get(0).Body);
ivh.outgoing_Time.setText(Commonclass.GetTime(chat.dateTime));
//set tick status for txt
if(chat.offlinestatus==1){
ivh.tick_status.setImageResource(R.drawable.offlinestatus);
}else if(chat.Deliverystatus==1){
ivh.tick_status.setImageResource(R.drawable.doubletick);
}else {
ivh.tick_status.setImageResource(R.drawable.singletick);
}
if(chat.Readstatus==1){
ivh.tick_status.setImageResource(R.drawable.colortick);
}
break;
case "Image":
//set Imagecmd
if(!Commonclass.isEmptyString(jsonMaking.items.get(0).ImagecmdTxt))
ivh.out_ImagecmdTxt.setText(jsonMaking.items.get(0).ImagecmdTxt);
else
ivh.out_ImagecmdTxt.setVisibility(View.GONE);
//set Image
if(!Commonclass.isEmptyString(jsonMaking.items.get(0).Base64)){
ivh.Outgoing_Image.setImageBitmap(Commonclass.decodeBase64(jsonMaking.items.get(0).Base64));
/*File file = new File(jsonMaking.items.get(0).localurl);
if(file.exists()){
Bitmap myBitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
ivh.Outgoing_Image.setImageBitmap(myBitmap);
}*/
}
//set Image time
ivh.outgoing_Image_Time.setText(Commonclass.GetTime(chat.dateTime));
//set tick status Image
if(chat.offlinestatus==1){
ivh.Image_tick_status.setImageResource(R.drawable.offlinestatus);
}else if(chat.Deliverystatus==1){
ivh.Image_tick_status.setImageResource(R.drawable.doubletick);
}else {
ivh.Image_tick_status.setImageResource(R.drawable.singletick);
}
if(chat.Readstatus==1){
ivh.Image_tick_status.setImageResource(R.drawable.colortick);
}
//set uploading percentage
context.runOnUiThread(new Runnable() {
@Override
public void run() {
if(chat.DownUpPercentage!=0&&chat.DownUpPercentage<90){
ivh.outgoing_circle_progress.setVisibility(View.VISIBLE);
ivh.outgoing_circle_progress.setProgress(chat.DownUpPercentage);
}else {
ivh.outgoing_circle_progress.setVisibility(View.GONE);
}
}
});
break;
}