Hi can you guys help me because I'm stuck here like forever and everytime I'm getting my JSON from my webhost its always null on my webhost and when I'm checking the string using Log.d this error shows NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toString()' on a null object
Here are my codes.
PHP to get JSON
<?PHP
include_once("connection.php");
session_start();
$where = '';
if (isset($_GET['driverOwner']) && isset($_GET['roles']) && isset ($_GET['driverStatus'])){
$where = " WHERE driverOwner = '".addslashes($_GET['driverOwner'])."' AND roles = '".addslashes($_GET['roles'])."' AND driverStatus = '".addslashes($_GET['driverSTatus'])."'";
}
$query = "SELECT * FROM tbl_user ".$where."";
$result = mysqli_query($conn, $query);
if($result)
{
while ($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
}
echo json_encode($data);
}
mysqli_close($conn);
?>
Drivers1.java
public class Drivers1 {
int id;
String name;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Connector
public class Connector {
public static HttpURLConnection connect(String urlAddress){
try{
URL url = new URL(urlAddress);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
//SET PROPERTIES
con.setRequestMethod("GET");
con.setConnectTimeout(20000);
con.setReadTimeout(20000);
con.setDoInput(true);
return con;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
DataParser.java
public class DataParser extends AsyncTask<Void,Void,Integer> {
Context c;
Spinner spDriver;
String jsonData;
ProgressDialog pd;
ArrayList<String> driver = new ArrayList<>();
public DataParser(Context c, Spinner sp, String jsonData) {
this.c = c;
this.spDriver = sp;
this.jsonData = jsonData;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
pd = new ProgressDialog(c);
pd.setTitle("Fetch");
pd.setMessage("Please wait... Getting drivers");
pd.show();
}
#Override
protected Integer doInBackground(Void... voids) {
return this.parseData();
}
#Override
protected void onPostExecute(Integer result) {
super.onPostExecute(result);
pd.dismiss();
if(result == 0 ){
Toast.makeText(c, "Failed", Toast.LENGTH_SHORT).show();
}else {
//BIND
ArrayAdapter adapter = new ArrayAdapter(c,android.R.layout.simple_list_item_1, driver);
spDriver.setAdapter(adapter);
spDriver.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
Toast.makeText(c, driver.get(i), Toast.LENGTH_SHORT).show();
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
}
}
private int parseData(){
try {
JSONArray ja = new JSONArray(jsonData);
JSONObject jo = null;
driver.clear();
Drivers1 s=null;
for (int i=0;i<ja.length();i++){
jo=ja.getJSONObject(i);
int id=jo.getInt("userID");
String name=jo.getString("firstname");
s = new Drivers1();
s.setId(id);
s.setName(name);
driver.add(name);
}
return 1;
} catch (JSONException e) {
e.printStackTrace();
}
return 0;
}
}
Downloader.java
public class Downloader extends AsyncTask<Void,Void,String> {
Context c;
String urlAddress;
Spinner spDriver;
ProgressDialog pd;
public Downloader(Context c, String urlAddress, Spinner spDriver) {
this.c = c;
this.urlAddress = urlAddress;
this.spDriver = spDriver;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
pd = new ProgressDialog(c);
pd.setTitle("Fetch(Downloader)");
pd.setMessage("Please wait... Getting Drivers");
pd.show();
}
#Override
protected String doInBackground(Void... voids) {
return this.downloadData();
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
Log.d("Downloader",""+ s);
pd.dismiss();
if (s == null) {
Toast.makeText(c, "Unable to retrieve", Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(c, "Success!", Toast.LENGTH_SHORT).show();
//CALL PARSER CLASS TO PARSE
DataParser parser = new DataParser(c,spDriver,s);
parser.execute();
}
}
private String downloadData(){
HttpURLConnection con = Connector.connect(urlAddress);
if(con == null){
return null;
}
InputStream is=null;
try {
is = new BufferedInputStream(con.getInputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line = "";
StringBuffer response = new StringBuffer();
if (br != null) {
while ((line = br.readLine()) != null){
response.append(line+"\n");
}
}else {
return null;
}
} catch (IOException e) {
e.printStackTrace();
}finally {
if(is != null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
}
And on the Activity with the spinner.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_insert);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
Spinner spDriver = (Spinner) findViewById(R.id.spDriver);
String url = "http://carkila.esy.es/carkila/getDriver.php?driverOwner="+ pref.getString("username","")+"&roles=driver&driverStatus=active";
new Downloader(InsertActivity.this,url ,spDriver).execute();
}
Sorry for the long post but please help me. :c thaaaaanks :)
EDIT
Error when Log.d("Downlaoder",s.toString()); is tested on Downloader.java.
Process: com.example.kun.carkila, PID: 31098
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toString()' on a null object reference
at com.example.kun.carkila.mMySQL.Downloader.onPostExecute(Downloader.java:56)
at com.example.kun.carkila.mMySQL.Downloader.onPostExecute(Downloader.java:24)
at android.os.AsyncTask.finish(AsyncTask.java:632)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
In your DataParser.Java class result 0 was return regardless.
private int parseData(){
try {
JSONArray ja = new JSONArray(jsonData);
JSONObject jo = null;
driver.clear();
Drivers1 s=null;
for (int i=0;i<ja.length();i++){
jo=ja.getJSONObject(i);
int id=jo.getInt("userID");
String name=jo.getString("firstname");
s = new Drivers1();
s.setId(id);
s.setName(name);
driver.add(name);
}
return 1;
} catch (JSONException e) {
e.printStackTrace();
}
return 0; //here it will go on
}
Please add a log to check what was returned, if it is returning 0 you must get Failed sort of toast.
Related
In my code i had caught data from a JSON file,
I executed the program, it stopped but didn't crash.
i've tried to change json file. I found one that is Smaller than the first one and so the program works.
this JSON file is made of data o premier legue(England) and contain 3 mainly data, the name, a key and a code of the squads.
public class MainActivity extends AppCompatActivity {
private ProgressDialog caric;
private String TAG = MainActivity.class.getSimpleName();
public ArrayMap<Integer, Valori> ArrayDati = new ArrayMap<>();
Button buttonProg;
TextView textViewProg;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttonProg = (Button) findViewById(R.id.button);
textViewProg = (TextView) findViewById(R.id.textView);
buttonProg.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
new JsonCLASS().execute("https://raw.githubusercontent.com/openfootball/football.json/master/2015-16/en.1.clubs.json");
}
});
}
private class JsonCLASS extends AsyncTask<String, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
caric = new ProgressDialog(MainActivity.this);
caric.setMessage("Please wait");
caric.setCancelable(false);
caric.show();
}
#Override
protected String doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(params[0]);
connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line + "\n");
Log.d("Response: ", "> " + line);
}
return buffer.toString();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (connection != null) {
connection.disconnect();
}
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
try {
JSONObject jsonObject = new JSONObject(result);
JSONArray Arr = new JSONArray(jsonObject.getString("clubs"));
for (int i = 0; i < Arr.length(); i++){
JSONObject jsonPart = Arr.getJSONObject(i);
ArrayDati.put(i,new Valori( jsonPart.getString("key"), jsonPart.getString("name"), jsonPart.getString("code")));
textViewProg.setText(textViewProg.getText()+"key : "+ ArrayDati.get(i).Key
+"\n"+textViewProg.getText()+"name : "+ ArrayDati.get(i).Name
+"\n"+textViewProg.getText()+"code : "+ ArrayDati.get(i).Code );
}
} catch (Exception e ){
e.printStackTrace();
}
if (caric.isShowing()) {
caric.dismiss();
}
}
}
}
And a class to pass the data
public class Valori {
String Key;
String Name;
String Code;
public Valori(String key, String name, String code) {
this.Key = key;
this.Name = name;
this.Code = code;
}
}
With this code the application stops but it doesn't close.
I keep getting an an error when trying to call WowZa GoCoder SDK's PlayerActivity and I am unable to understand the cause. The error appears when mStreamPlayerView.play(mStreamPlayerConfig, statusCallback) is called. Would really appreciate help on where i am going wrong
vodFragment.java
public class vodFragment extends Fragment {
private int mColumnCount = 1;
ListView videoView;
ArrayList <Vidoes> videoList;
private static String value;
String videoName;
String url = "http://192.168.43.149/twende/channelVOD.php";
public vodFragment() {
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (getActivity().getActionBar() != null) {
getActivity().getActionBar().setTitle(value);
}
View view = inflater.inflate(R.layout.fragment_vod_list, container, false);
videoView = (ListView) view.findViewById(R.id.listView);
videoList = new ArrayList<Vidoes>();
JSONObject channelInfo = new JSONObject();
try {
channelInfo.put("channelName", value);
channelInfo.put("channelOwner", "dan");
postJSONObject(url,channelInfo);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return view;
}
public static void setChannel(String channel){
value = channel;
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
}
#Override
public void onDetach() {
super.onDetach();
}
public void postJSONObject(final String myurl, final JSONObject parameters) {
class postJSONObject extends AsyncTask<Void, Void, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
try {
loadIntoVodView(s);
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
protected String doInBackground(Void... voids) {
HttpURLConnection conn = null;
try {
StringBuffer response = null;
URL url = new URL(myurl);
conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000);
conn.setConnectTimeout(15000);
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoOutput(true);
conn.setRequestMethod("POST");
OutputStream out = new BufferedOutputStream(conn.getOutputStream());
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out, "UTF-8"));
writer.write(parameters.toString());
writer.close();
out.close();
int responseCode = conn.getResponseCode();
System.out.println("responseCode" + responseCode);
switch (responseCode) {
case 200:
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String inputLine;
response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
return response.toString();
}
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (conn != null) {
try {
conn.disconnect();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
return null;
}
}
postJSONObject postJSONObject = new postJSONObject();
postJSONObject.execute();
}
private void loadIntoVodView(String json) throws JSONException {
JSONArray jsonArray = new JSONArray(json);
final String[] videos = new String[jsonArray.length()];
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject obj = jsonArray.getJSONObject(i);
videos[i] = removeExtension(obj.getString("title"));
Vidoes vidoe = new Vidoes();
vidoe.setTitle(videos[i]);
videoList.add(vidoe);
}
VideoListAdapter adapter = new VideoListAdapter(getActivity(), R.layout.vodparsedata, videoList);
videoView.setAdapter(adapter);
videoView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long arg3) {
videoName = Arrays.asList(videos).get(position);
Intent intent = new Intent(getActivity(), PlayerActivity.class);
String message = videoName+".mp4";
intent.putExtra("videoName", message);
startActivity(intent);
System.out.println("arr: " + Arrays.asList(videos).get(position));
}
});
}
public static String removeExtension(String fileName) {
if (fileName.indexOf(".") > 0) {
return fileName.substring(0, fileName.lastIndexOf("."));
} else {
return fileName;
}
}
}
PlayerActivity.java
public class PlayerActivity extends GoCoderSDKActivityBase {
final private static String TAG = PlayerActivity.class.getSimpleName();
String videoName;
private WOWZPlayerView mStreamPlayerView = null;
private WOWZPlayerConfig mStreamPlayerConfig = new WOWZPlayerConfig();
private MultiStateButton mBtnPlayStream = null;
private MultiStateButton mBtnSettings = null;
private MultiStateButton mBtnMic = null;
private MultiStateButton mBtnScale = null;
private SeekBar mSeekVolume = null;
private ProgressDialog mBufferingDialog = null;
private StatusView mStatusView = null;
private TextView mHelp = null;
private TimerView mTimerView = null;
private ImageButton mStreamMetadata = null;
private boolean mUseHLSPlayback = false;
private WOWZPlayerView.PacketThresholdChangeListener packetChangeListener = null;
private VolumeChangeObserver mVolumeSettingChangeObserver = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_stream_player);
mRequiredPermissions = new String[]{};
if (savedInstanceState == null) {
Bundle extras = getIntent().getExtras();
if(extras == null) {
videoName= null;
} else {
videoName= extras.getString("videoName");
}
} else {
videoName= (String) savedInstanceState.getSerializable("videoName");
}
System.out.print(videoName);
mStreamPlayerConfig.setIsPlayback(true);
mStreamPlayerConfig.setHostAddress("192.168.43.149");
mStreamPlayerConfig.setApplicationName("Dark Souls 2 Channel");
mStreamPlayerConfig.setStreamName(videoName);
mStreamPlayerConfig.setPortNumber(1935);
mStreamPlayerView = (WOWZPlayerView) findViewById(R.id.vwStreamPlayer);
mBtnPlayStream = (MultiStateButton) findViewById(R.id.ic_play_stream);
mBtnSettings = (MultiStateButton) findViewById(R.id.ic_settings);
mBtnMic = (MultiStateButton) findViewById(R.id.ic_mic);
mBtnScale = (MultiStateButton) findViewById(R.id.ic_scale);
mTimerView = (TimerView) findViewById(R.id.txtTimer);
mStatusView = (StatusView) findViewById(R.id.statusView);
mStreamMetadata = (ImageButton) findViewById(R.id.imgBtnStreamInfo);
mHelp = (TextView) findViewById(R.id.streamPlayerHelp);
mSeekVolume = (SeekBar) findViewById(R.id.sb_volume);
WOWZStatusCallback statusCallback = new StatusCallback();
mStreamPlayerView.play(mStreamPlayerConfig, statusCallback);
mTimerView.setVisibility(View.GONE);
mStreamPlayerView.play(mStreamPlayerConfig, statusCallback);
if (sGoCoderSDK != null) {
/*
Packet change listener setup
*/
final PlayerActivity activity = this;
packetChangeListener = new WOWZPlayerView.PacketThresholdChangeListener() {
#Override
public void packetsBelowMinimumThreshold(int packetCount) {
WOWZLog.debug("Packets have fallen below threshold "+packetCount+"... ");
activity.runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(activity, "Packets have fallen below threshold ... ", Toast.LENGTH_SHORT).show();
}
});
}
#Override
public void packetsAboveMinimumThreshold(int packetCount) {
WOWZLog.debug("Packets have risen above threshold "+packetCount+" ... ");
activity.runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(activity, "Packets have risen above threshold ... ", Toast.LENGTH_SHORT).show();
}
});
}
};
mStreamPlayerView.setShowAllNotificationsWhenBelowThreshold(false);
mStreamPlayerView.setMinimumPacketThreshold(20);
mStreamPlayerView.registerPacketThresholdListener(packetChangeListener);
///// End packet change notification listener
mTimerView.setTimerProvider(new TimerView.TimerProvider() {
#Override
public long getTimecode() {
return mStreamPlayerView.getCurrentTime();
}
#Override
public long getDuration() {
return mStreamPlayerView.getDuration();
}
});
mSeekVolume.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (mStreamPlayerView != null && mStreamPlayerView.isPlaying()) {
mStreamPlayerView.setVolume(progress);
}
}
public void onStartTrackingTouch(SeekBar seekBar) {
}
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
// listen for volume changes from device buttons, etc.
mVolumeSettingChangeObserver = new VolumeChangeObserver(this, new Handler());
getApplicationContext().getContentResolver().registerContentObserver(android.provider.Settings.System.CONTENT_URI, true, mVolumeSettingChangeObserver);
mVolumeSettingChangeObserver.setVolumeChangeListener(new VolumeChangeObserver.VolumeChangeListener() {
#Override
public void onVolumeChanged(int previousLevel, int currentLevel) {
if (mSeekVolume != null)
mSeekVolume.setProgress(currentLevel);
if (mStreamPlayerView != null && mStreamPlayerView.isPlaying()) {
mStreamPlayerView.setVolume(currentLevel);
}
}
});
mBtnScale.setState(mStreamPlayerView.getScaleMode() == WOWZMediaConfig.FILL_VIEW);
// The streaming player configuration properties
mStreamPlayerConfig = new WOWZPlayerConfig();
mBufferingDialog = new ProgressDialog(this);
mBufferingDialog.setTitle(R.string.status_buffering);
mBufferingDialog.setMessage(getResources().getString(R.string.msg_please_wait));
mBufferingDialog.setButton(DialogInterface.BUTTON_NEGATIVE, getResources().getString(R.string.button_cancel), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
cancelBuffering(dialogInterface);
}
});
// testing player data event handler.
mStreamPlayerView.registerDataEventListener("onMetaData", new WOWZDataEvent.EventListener(){
#Override
public WOWZDataMap onWZDataEvent(String eventName, WOWZDataMap eventParams) {
String meta = "";
if(eventParams!=null)
meta = eventParams.toString();
WOWZLog.debug("onWZDataEvent -> eventName "+eventName+" = "+meta);
return null;
}
});
// testing player data event handler.
mStreamPlayerView.registerDataEventListener("onStatus", new WOWZDataEvent.EventListener(){
#Override
public WOWZDataMap onWZDataEvent(String eventName, WOWZDataMap eventParams) {
if(eventParams!=null)
WOWZLog.debug("onWZDataEvent -> eventName "+eventName+" = "+eventParams.toString());
return null;
}
});
// testing player data event handler.
mStreamPlayerView.registerDataEventListener("onTextData", new WOWZDataEvent.EventListener(){
#Override
public WOWZDataMap onWZDataEvent(String eventName, WOWZDataMap eventParams) {
if(eventParams!=null)
WOWZLog.debug("onWZDataEvent -> "+eventName+" = "+eventParams.get("text"));
return null;
}
});
} else {
mHelp.setVisibility(View.GONE);
mStatusView.setErrorMessage(WowzaGoCoder.getLastError().getErrorDescription());
}
}
#Override
protected void onDestroy() {
if (mVolumeSettingChangeObserver != null)
getApplicationContext().getContentResolver().unregisterContentObserver(mVolumeSettingChangeObserver);
super.onDestroy();
}
/**
* Android Activity class methods
*/
#Override
protected void onResume() {
super.onResume();
syncUIControlState();
}
#Override
protected void onPause() {
if (mStreamPlayerView != null && mStreamPlayerView.isPlaying()) {
mStreamPlayerView.stop();
// Wait for the streaming player to disconnect and shutdown...
mStreamPlayerView.getCurrentStatus().waitForState(WOWZState.IDLE);
}
super.onPause();
}
private boolean isNetworkAvailable() {
ConnectivityManager connectivityManager
= (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
public boolean isPlayerConfigReady()
{
return false;
}
/*
Click handler for network pausing
*/
public void onPauseNetwork(View v)
{
Button btn = (Button)findViewById(R.id.pause_network);
if(btn.getText().toString().trim().equalsIgnoreCase("pause network")) {
WOWZLog.info("Pausing network...");
btn.setText("Unpause Network");
mStreamPlayerView.pauseNetworkStack();
}
else{
WOWZLog.info("Unpausing network... btn.getText(): "+btn.getText());
btn.setText("Pause Network");
mStreamPlayerView.unpauseNetworkStack();
}
}
/**
* Click handler for the playback button
*/
public void onTogglePlayStream(View v) {
if (mStreamPlayerView.isPlaying()) {
mStreamPlayerView.stop();
} else if (mStreamPlayerView.isReadyToPlay()) {
if(!this.isNetworkAvailable()){
displayErrorDialog("No internet connection, please try again later.");
return;
}
// if(!this.isPlayerConfigReady()){
// displayErrorDialog("Please be sure to include a host, stream, and application to playback a stream.");
// return;
// }
mHelp.setVisibility(View.GONE);
WOWZStreamingError configValidationError = mStreamPlayerConfig.validateForPlayback();
if (configValidationError != null) {
mStatusView.setErrorMessage(configValidationError.getErrorDescription());
} else {
// Set the detail level for network logging output
mStreamPlayerView.setLogLevel(mWZNetworkLogLevel);
// Set the player's pre-buffer duration as stored in the app prefs
float preBufferDuration = GoCoderSDKPrefs.getPreBufferDuration(PreferenceManager.getDefaultSharedPreferences(this));
mStreamPlayerConfig.setPreRollBufferDuration(preBufferDuration);
// Start playback of the live stream
mStreamPlayerView.play(mStreamPlayerConfig, this);
}
}
}
/**
* WOWZStatusCallback interface methods
*/
#Override
public synchronized void onWZStatus(WOWZStatus status) {
final WOWZStatus playerStatus = new WOWZStatus(status);
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
WOWZStatus status = new WOWZStatus(playerStatus.getState());
switch(playerStatus.getState()) {
case WOWZPlayerView.STATE_PLAYING:
// Keep the screen on while we are playing back the stream
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
if (mStreamPlayerConfig.getPreRollBufferDuration() == 0f) {
mTimerView.startTimer();
}
// Since we have successfully opened up the server connection, store the connection info for auto complete
GoCoderSDKPrefs.storeHostConfig(PreferenceManager.getDefaultSharedPreferences(PlayerActivity.this), mStreamPlayerConfig);
// Log the stream metadata
WOWZLog.debug(TAG, "Stream metadata:\n" + mStreamPlayerView.getMetadata());
break;
case WOWZPlayerView.STATE_READY_TO_PLAY:
// Clear the "keep screen on" flag
WOWZLog.debug(TAG, "STATE_READY_TO_PLAY player activity status!");
if(playerStatus.getLastError()!=null)
displayErrorDialog(playerStatus.getLastError());
playerStatus.clearLastError();
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
mTimerView.stopTimer();
break;
case WOWZPlayerView.STATE_PREBUFFERING_STARTED:
WOWZLog.debug(TAG, "Dialog for buffering should show...");
showBuffering();
break;
case WOWZPlayerView.STATE_PREBUFFERING_ENDED:
WOWZLog.debug(TAG, "Dialog for buffering should stop...");
hideBuffering();
// Make sure player wasn't signaled to shutdown
if (mStreamPlayerView.isPlaying()) {
mTimerView.startTimer();
}
break;
default:
break;
}
syncUIControlState();
}
});
}
#Override
public synchronized void onWZError(final WOWZStatus playerStatus) {
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
displayErrorDialog(playerStatus.getLastError());
syncUIControlState();
}
});
}
public void onToggleMute(View v) {
mBtnMic.toggleState();
if (mStreamPlayerView != null)
mStreamPlayerView.mute(!mBtnMic.isOn());
mSeekVolume.setEnabled(mBtnMic.isOn());
}
public void onToggleScaleMode(View v) {
int newScaleMode = mStreamPlayerView.getScaleMode() == WOWZMediaConfig.RESIZE_TO_ASPECT ? WOWZMediaConfig.FILL_VIEW : WOWZMediaConfig.RESIZE_TO_ASPECT;
mBtnScale.setState(newScaleMode == WOWZMediaConfig.FILL_VIEW);
mStreamPlayerView.setScaleMode(newScaleMode);
}
public void onStreamMetadata(View v) {
WOWZDataMap streamMetadata = mStreamPlayerView.getMetadata();
WOWZDataMap streamStats = mStreamPlayerView.getStreamStats();
// WOWZDataMap streamConfig = mStreamPlayerView.getStreamConfig().toDataMap();
WOWZDataMap streamConfig = new WOWZDataMap();
WOWZDataMap streamInfo = new WOWZDataMap();
streamInfo.put("- Stream Statistics -", streamStats);
streamInfo.put("- Stream Metadata -", streamMetadata);
//streamInfo.put("- Stream Configuration -", streamConfig);
DataTableFragment dataTableFragment = DataTableFragment.newInstance("Stream Information", streamInfo, false, false);
getFragmentManager().beginTransaction()
.add(android.R.id.content, dataTableFragment)
.addToBackStack("metadata_fragment")
.commit();
}
public void onSettings(View v) {
// Display the prefs fragment
GoCoderSDKPrefs.PrefsFragment prefsFragment = new GoCoderSDKPrefs.PrefsFragment();
prefsFragment.setFixedSource(true);
prefsFragment.setForPlayback(true);
getFragmentManager().beginTransaction()
.replace(android.R.id.content, prefsFragment)
.addToBackStack(null)
.commit();
}
private void syncUIControlState() {
boolean disableControls = (!(mStreamPlayerView.isReadyToPlay() || mStreamPlayerView.isPlaying()) || sGoCoderSDK == null);
if (disableControls) {
mBtnPlayStream.setEnabled(false);
mBtnSettings.setEnabled(false);
mSeekVolume.setEnabled(false);
mBtnScale.setEnabled(false);
mBtnMic.setEnabled(false);
mStreamMetadata.setEnabled(false);
} else {
mBtnPlayStream.setState(mStreamPlayerView.isPlaying());
mBtnPlayStream.setEnabled(true);
if (mStreamPlayerConfig.isAudioEnabled()) {
mBtnMic.setVisibility(View.VISIBLE);
mBtnMic.setEnabled(true);
mSeekVolume.setVisibility(View.VISIBLE);
mSeekVolume.setEnabled(mBtnMic.isOn());
mSeekVolume.setProgress(mStreamPlayerView.getVolume());
} else {
mSeekVolume.setVisibility(View.GONE);
mBtnMic.setVisibility(View.GONE);
}
mBtnScale.setVisibility(View.VISIBLE);
mBtnScale.setVisibility(mStreamPlayerView.isPlaying() && mStreamPlayerConfig.isVideoEnabled() ? View.VISIBLE : View.GONE);
mBtnScale.setEnabled(mStreamPlayerView.isPlaying() && mStreamPlayerConfig.isVideoEnabled());
mBtnSettings.setEnabled(!mStreamPlayerView.isPlaying());
mBtnSettings.setVisibility(mStreamPlayerView.isPlaying() ? View.GONE : View.VISIBLE);
mStreamMetadata.setEnabled(mStreamPlayerView.isPlaying());
mStreamMetadata.setVisibility(mStreamPlayerView.isPlaying() ? View.VISIBLE : View.GONE);
}
}
private void showBuffering() {
try {
if (mBufferingDialog == null) return;
mBufferingDialog.show();
}
catch(Exception ex){}
}
private void cancelBuffering(DialogInterface dialogInterface) {
if(mStreamPlayerConfig.getHLSBackupURL()!=null || mStreamPlayerConfig.isHLSEnabled()){
mStreamPlayerView.stop(true);
}
else if (mStreamPlayerView != null && mStreamPlayerView.isPlaying()) {
mStreamPlayerView.stop(true);
}
}
private void hideBuffering() {
if (mBufferingDialog.isShowing())
mBufferingDialog.dismiss();
}
#Override
public void syncPreferences() {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
mWZNetworkLogLevel = Integer.valueOf(prefs.getString("wz_debug_net_log_level", String.valueOf(WOWZLog.LOG_LEVEL_DEBUG)));
mStreamPlayerConfig.setIsPlayback(true);
if (mStreamPlayerConfig != null)
GoCoderSDKPrefs.updateConfigFromPrefsForPlayer(prefs, mStreamPlayerConfig);
}
private class StatusCallback implements WOWZStatusCallback {
#Override
public void onWZStatus(WOWZStatus wzStatus) {
}
#Override
public void onWZError(WOWZStatus wzStatus) {
}
}
}
The error I get is;
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wowza.gocoder.sdk.sampleapp/com.wowza.gocoder.sdk.sampleapp.PlayerActivity}: java.lang.RuntimeException: Invalid surface: null
You start the stream in onCreate. At this time the Surface used by WOWZPlayerView is not ready yet and the app crashes with the 'Invalid surface' error.
If you look at the sample test in the GoCoder SDK, the playback is started when the user clicks a button. Eg. when the Surface is valid.
Create a button and move your 'mStreamPlayerView.play(mStreamPlayerConfig, statusCallback);' to the button.onClick.
Or ... use any GoCoder SDK v1.7 and more recent.
Please, let me know if I can help any further.
Thanks
I want to show string from another string in my MainActivity, but the string is getting printed in console. Here is my code:
public class MainActivity extends AppCompatActivity {
Button start;
public TextView showText;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
showText= (TextView)findViewById(R.id.textView);
start = (Button)findViewById(R.id.button);
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
RetrieveFeedTask click1 = new RetrieveFeedTask();
click1.execute();
showText.setText(click1.getString());
}
});
}
}
And the class:
class RetrieveFeedTask extends AsyncTask<Void, Void, String> {
static final String API_URL = "http://numbersapi.com/random/trivia?json";
private Exception exception;
public String finalString;
protected void onPreExecute() { }
protected String doInBackground(Void... urls) {
try {
URL url = new URL(API_URL );
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
try {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
while ((finalString = bufferedReader.readLine()) != null) {
stringBuilder.append(finalString).append("\n");
}
bufferedReader.close();
return stringBuilder.toString();
}
finally{
urlConnection.disconnect();
}
}
catch(Exception e) {
Log.e("ERROR", e.getMessage(), e);
return null;
}
}
protected void onPostExecute(String response) {
if(response == null) {
response = "THERE WAS AN ERROR";
}
try {
JSONObject object = (JSONObject) new JSONTokener(response).nextValue();
finalString = object.getString("text");
Log.i("Here",finalString);
} catch (JSONException e) {
}
}
public String getString() {
return this.finalString;
}
}
You require the finalString before it's populated with your data. the onPostExecute is executed after the doInBackground so you should pass your text view to your task and set it's value in the onPostExecute
public TextView showText;
public RetrieveFeedTask(TextView showText) { this.showText = showText; }
protected void onPostExecute(String response) {
if(response == null) {
response = "THERE WAS AN ERROR";
}
try {
JSONObject object = (JSONObject) new JSONTokener(response).nextValue();
finalString = object.getString("text");
showText.setText(finalString ); // add this
Log.i("Here",finalString);
} catch (JSONException e) {
}
}
The problem is that showText.setText(click1.getString()); of your activity is called earlier than finalString = object.getString("text"); of your task.
Solution:
Create an interface:
public interface DataCallback {
void onNewData(String data);
}
and implement it in your activity:
public class MainActivity extends ... implements DataCallback
public void onNewData(String data) {
showText.setText(data);
}
Pass the interface to your asynctask when you create it:
RetrieveFeedTask click1 = new RetrieveFeedTask(this);
Call the interface inside the task in onPostExecute() to notify the activity that there is new data:
JSONObject object = (JSONObject) new JSONTokener(response).nextValue();
finalString = object.getString("text");
callback.onNewData(finalString);
I've been working on an android app ... I am stuck at a point ... after getting the JSON data from the internet I am having trouble to show it in the ListView ... Below is my code ...
public class MainListActivityFragment extends Fragment {
protected String[] mBlogPostTitles;
protected JSONObject mBlogData;
public static final String LOG_TAG = MainListActivityFragment.class.getSimpleName();
public static ArrayAdapter<String> titleAdapter;
public MainListActivityFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_list, container, false);
if(isNetworkAvailable()) {
GetBlogPost getBlogPost = new GetBlogPost();
getBlogPost.execute();
} else {
Toast.makeText(getContext(),"No Network Available", Toast.LENGTH_LONG).show();
}
List<String> blogTitles = new ArrayList<>(Arrays.asList(mBlogPostTitles));
titleAdapter = new ArrayAdapter<>(
getActivity(),
R.layout.name_lst_view,
R.id.name_list_view_textview,
blogTitles
);
ListView listView = (ListView) rootView.findViewById(R.id.listview_name);
listView.setAdapter(titleAdapter);
return rootView;
}
private boolean isNetworkAvailable() {
ConnectivityManager manager = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
boolean isAvailable = false;
if (networkInfo != null && networkInfo.isConnected()){
isAvailable = true;
}
return isAvailable;
}
private void updateList() {
if(mBlogData == null){
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Oopps");
builder.setMessage("There was an error accessing the blog ...");
builder.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}else {
try {
JSONArray jsonPosts = mBlogData.getJSONArray("posts");
mBlogPostTitles = new String[jsonPosts.length()];
for (int i = 0; i < jsonPosts.length(); i++){
JSONObject post = jsonPosts.getJSONObject(i);
String title = post.getString("title");
title = Html.fromHtml(title).toString();
mBlogPostTitles[i] = title;
}
} catch (JSONException e) {
Log.e(LOG_TAG,"Exception Caught: ",e);
}
}
}
public class GetBlogPost extends AsyncTask<Object, Void, JSONObject> {
public final int NUMBER_OF_POSTS = 5;
int responseCode = -1;
JSONObject jsonResponse = null;
#Override
protected JSONObject doInBackground(Object... params) {
try {
URL blogFeedUrl = new URL("http://www.example.com/api/get_category_posts/?slug=americancuisines&count="+NUMBER_OF_POSTS);
HttpURLConnection connection = (HttpURLConnection) blogFeedUrl.openConnection();
connection.setRequestMethod("GET");
connection.connect();
responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK){
InputStream inputStream = connection.getInputStream();
StringBuffer buffer = new StringBuffer();
if (inputStream == null) {
// Nothing to do.
return null;
}
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
// Since it's JSON, adding a newline isn't necessary (it won't affect parsing)
// But it does make debugging a *lot* easier if you print out the completed
// buffer for debugging.
buffer.append(line + "\n");
}
if (buffer.length() == 0) {
// Stream was empty. No point in parsing.
return null;
}
String blogDataJsonStr = buffer.toString();
jsonResponse = new JSONObject(blogDataJsonStr);
}else {
Log.i(LOG_TAG, "Unsuccessful HTTP Response Code: " + responseCode);
}
}
catch (MalformedURLException e){
Log.e(LOG_TAG,"Exception Caught: ",e);
}
catch (IOException e) {
Log.e(LOG_TAG, "IO Exception Caught: ",e);
}
catch (Exception e) {
Log.e(LOG_TAG,"Exception Caught: ",e);
}
return jsonResponse;
}
#Override
protected void onPostExecute(JSONObject result) {
super.onPostExecute(result);
mBlogData = result;
updateList();
}
}
}
From the above code you can see that i am getting that data through doInBackground method of AsyncTask ... Data is coming through perfectly as I can see through the logcat ... The issue is somewhere in this method which I can't seem to figure out ..
private void updateList() {
if(mBlogData == null){
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Oopps");
builder.setMessage("There was an error accessing the blog ...");
builder.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}else {
try {
JSONArray jsonPosts = mBlogData.getJSONArray("posts");
mBlogPostTitles = new String[jsonPosts.length()];
for (int i = 0; i < jsonPosts.length(); i++){
JSONObject post = jsonPosts.getJSONObject(i);
String title = post.getString("title");
title = Html.fromHtml(title).toString();
mBlogPostTitles[i] = title;
}
} catch (JSONException e) {
Log.e(LOG_TAG,"Exception Caught: ",e);
}
}
}
The above method is called in onPostExecute I mean if i print to logcat within this method I can see the results being printed but when I try to show those results in the onCreateView method results don't show up not even in the logcat ... Any help will be appreciated ... Thanks
Change your code as following:
public class MainListActivityFragment extends Fragment {
protected String[] mBlogPostTitles;
protected JSONObject mBlogData;
public static final String LOG_TAG = MainListActivityFragment.class.getSimpleName();
public static ArrayAdapter<String> titleAdapter;
ListView listView;
public MainListActivityFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_list, container, false);
listView = (ListView) rootView.findViewById(R.id.listview_name);
if(isNetworkAvailable()) {
GetBlogPost getBlogPost = new GetBlogPost();
getBlogPost.execute();
} else {
Toast.makeText(getContext(),"No Network Available", Toast.LENGTH_LONG).show();
}
return rootView;
}
private void updateList() {
if(mBlogData == null){
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Oopps");
builder.setMessage("There was an error accessing the blog ...");
builder.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.show();
}else {
try {
JSONArray jsonPosts = mBlogData.getJSONArray("posts");
mBlogPostTitles = new String[jsonPosts.length()];
for (int i = 0; i < jsonPosts.length(); i++){
JSONObject post = jsonPosts.getJSONObject(i);
String title = post.getString("title");
title = Html.fromHtml(title).toString();
mBlogPostTitles[i] = title;
}
} catch (JSONException e) {
Log.e(LOG_TAG,"Exception Caught: ",e);
}
}
}
public class GetBlogPost extends AsyncTask<Object, Void, JSONObject> {
public final int NUMBER_OF_POSTS = 5;
int responseCode = -1;
JSONObject jsonResponse = null;
#Override
protected JSONObject doInBackground(Object... params) {
try {
URL blogFeedUrl = new URL("http://www.example.com/api/get_category_posts/?slug=americancuisines&count="+NUMBER_OF_POSTS);
HttpURLConnection connection = (HttpURLConnection) blogFeedUrl.openConnection();
connection.setRequestMethod("GET");
connection.connect();
responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK){
InputStream inputStream = connection.getInputStream();
StringBuffer buffer = new StringBuffer();
if (inputStream == null) {
// Nothing to do.
return null;
}
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
// Since it's JSON, adding a newline isn't necessary (it won't affect parsing)
// But it does make debugging a *lot* easier if you print out the completed
// buffer for debugging.
buffer.append(line + "\n");
}
if (buffer.length() == 0) {
// Stream was empty. No point in parsing.
return null;
}
String blogDataJsonStr = buffer.toString();
jsonResponse = new JSONObject(blogDataJsonStr);
}else {
Log.i(LOG_TAG, "Unsuccessful HTTP Response Code: " + responseCode);
}
}
catch (MalformedURLException e){
Log.e(LOG_TAG,"Exception Caught: ",e);
}
catch (IOException e) {
Log.e(LOG_TAG, "IO Exception Caught: ",e);
}
catch (Exception e) {
Log.e(LOG_TAG,"Exception Caught: ",e);
}
return jsonResponse;
}
#Override
protected void onPostExecute(JSONObject result) {
super.onPostExecute(result);
mBlogData = result;
updateList();
List<String> blogTitles = new ArrayList<>(Arrays.asList(mBlogPostTitles));
titleAdapter = new ArrayAdapter<String>(
getActivity(),
R.layout.name_list_view,
R.id.name_list_view_textview,
blogTitles
);
listView.setAdapter(titleAdapter);
}
}
}
Use same array list in both update and initialize so globally declare a single array list and update it in updateList() method,
Try like this,
try {
JSONArray jsonPosts = mBlogData.getJSONArray("posts");
mBlogPostTitles = new String[jsonPosts.length()];//remove this and use the
//same as you are using in adapter
for (int i = 0; i < jsonPosts.length(); i++){
JSONObject post = jsonPosts.getJSONObject(i);
String title = post.getString("title");
title = Html.fromHtml(title).toString();
mBlogPostTitles[i] = title;
}
titleAdapter.notifyDataSetChanged();//here
} catch (JSONException e) {
Log.e(LOG_TAG,"Exception Caught: ",e);
}
OR even you can use in onPostExecute
#Override
protected void onPostExecute(JSONObject result) {
super.onPostExecute(result);
mBlogData = result;
updateList();
titleAdapter.notifyDataSetChanged();//here
}
find the listview : ListView listView = (ListView) rootView.findViewById(R.id.listview_name); before calling
GetBlogPost getBlogPost = new GetBlogPost();
getBlogPost.execute();
and put this line listView.setAdapter(titleAdapter); in your onPostExecute method.
I am missing something very crucial but I can't quite see what. Can someone please assist. It's probably something really silly that I have missed but I cannot initiate my onItemClick.
onCreate....
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
actu_ip = intent.getStringExtra(IPEntry.ACTUALSMARTIP);
setContentView(R.layout.act_ipcontrol);
mainListView = (ListView) findViewById( R.id.mainListView );
String[] options = new String[] { "All in to 1", "Spare"};
ArrayList<String> optionsList = new ArrayList<String>();
optionsList.addAll( Arrays.asList(options) );
listAdapter = new ArrayAdapter<String>(this, R.layout.simplerow, optionsList);
mainListView.setAdapter( listAdapter );
try {
Toast.makeText(IPControl.this, "Please wait...Connecting...", Toast.LENGTH_SHORT).show();
new AsyncAction().execute();
} catch(Exception e) {
e.printStackTrace();
}
}
private class AsyncAction extends AsyncTask<String, Void, String> {
protected String doInBackground(String... args) {
try {
InetAddress serverAddr = InetAddress.getByName(actu_ip);
socket = new Socket(serverAddr, REDIRECTED_SERVERPORT);
OutputStreamWriter osw = new OutputStreamWriter(socket.getOutputStream());
BufferedWriter bw = new BufferedWriter(osw);
out = new PrintWriter(bw, true);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
while (! in .ready());
readBuffer();
out.println("root\r\n");
while (! in .ready());
readBuffer();
out.println("root\r\n");
while (! in .ready());
readBuffer();
out.println("[verbose,off\r\n");
while (! in .ready());
String msg = "";
while ( in .ready()) {
msg = msg + (char) in .read();
}
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;//returns what you want to pass to the onPostExecute()
}
protected void onPostExecute(String result) {
Toast.makeText(IPControl.this, "Connected", Toast.LENGTH_SHORT).show();
//results the data returned from doInbackground
IPControl.this.data = result;
}
}
private String readBuffer() throws IOException {
String msg = "";
while(in.ready()) {
msg = msg + (char)in.read();
}
//System.out.print(msg);
if(msg.indexOf("SNX_COM> ") != -1) return msg.substring(0, msg.indexOf("SNX_COM> "));
else if(msg.indexOf("SCX_COM> ") != -1) return msg.substring(0, msg.indexOf("SCX_COM> "));
else return msg;
}
}
What I want to initiate...
public void onItemClick(AdapterView<?> arg0, View arg1, int pos,
long arg3) {
try {
new AsyncAction1().execute();
} catch(Exception e) {
e.printStackTrace();
}
}
private class AsyncAction1 extends AsyncTask<String, Void, String> {
protected String doInBackground(String... args) {
try {
out.println("[c,l#,i1,o*\r\n");
//System.out.print("root\r\n");
while(! in .ready());
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;//returns what you want to pass to the onPostExecute()
}
protected void onPostExecute(String result) {
//results the data returned from doInbackground
Toast.makeText(IPControl.this, "Command Sent", Toast.LENGTH_SHORT).show();
IPControl.this.data = result;
}
}
I haven't seen setOnItemClickListener method for listview in your code. Have you implemented it?
Try following
mainListView.setAdapter( listAdapter );
mainListView.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
try {
new AsyncAction1().execute();
}catch(Exception e) {
e.printStackTrace();
}
});
Thanks for all your help, I fixed my problem.
I just wasn't doing things in the correct order.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
actu_ip = intent.getStringExtra(IPEntry.ACTUALSMARTIP);
setContentView(R.layout.act_ipcontrol);
mainListView = (ListView) findViewById( R.id.mainListView );
final String[] options = new String[] { "All in to 1", "Spare"};
ArrayList<String> optionsList = new ArrayList<String>();
optionsList.addAll( Arrays.asList(options) );
listAdapter = new ArrayAdapter<String>(this, R.layout.simplerow, optionsList);
mainListView.setAdapter( listAdapter );
mainListView.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> arg0, View arg1, int pos, long arg3) {
try {
if(pos == 0) {
AsyncAction1 a = new AsyncAction1();
a.setCmd("[c,l#,i1,o*\r\n");
a.execute();
}
} catch(Exception e) {
e.printStackTrace();
}
}
});
Then....
private class AsyncAction1 extends AsyncTask<String, Void, String> {
String cmd;
public void setCmd(String c) {
cmd = c;
}
protected String doInBackground(String... args) {
try {
out.println(cmd);
//System.out.print("root\r\n");
while(! in .ready());
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;//returns what you want to pass to the onPostExecute()
}
protected void onPostExecute(String result) {
//results the data returned from doInbackground
Toast.makeText(IPControl.this, "Command Sent", Toast.LENGTH_SHORT).show();
IPControl.this.data = result;
}
}
}