List of usage examples for android.widget ArrayAdapter add
public void add(@Nullable T object)
From source file:com.mantz_it.rfanalyzer.MainActivity.java
public void showRecordingDialog() { if (!running || scheduler == null || demodulator == null || source == null) { Toast.makeText(MainActivity.this, "Analyzer must be running to start recording", Toast.LENGTH_LONG) .show();/*from w w w. j a va2s . co m*/ return; } // Check for the WRITE_EXTERNAL_STORAGE permission: if (ContextCompat.checkSelfPermission(this, "android.permission.WRITE_EXTERNAL_STORAGE") != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(this, new String[] { "android.permission.WRITE_EXTERNAL_STORAGE" }, PERMISSION_REQUEST_RECORDING_WRITE_FILES); return; // wait for the permission response (handled in onRequestPermissionResult()) } final String externalDir = Environment.getExternalStorageDirectory().getAbsolutePath(); final int[] supportedSampleRates = source.getSupportedSampleRates(); final double maxFreqMHz = source.getMaxFrequency() / 1000000f; // max frequency of the source in MHz final int sourceType = Integer.valueOf(preferences.getString(getString(R.string.pref_sourceType), "1")); final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.US); // Get references to the GUI components: final ScrollView view = (ScrollView) this.getLayoutInflater().inflate(R.layout.start_recording, null); final EditText et_filename = (EditText) view.findViewById(R.id.et_recording_filename); final EditText et_frequency = (EditText) view.findViewById(R.id.et_recording_frequency); final Spinner sp_sampleRate = (Spinner) view.findViewById(R.id.sp_recording_sampleRate); final TextView tv_fixedSampleRateHint = (TextView) view.findViewById(R.id.tv_recording_fixedSampleRateHint); final CheckBox cb_stopAfter = (CheckBox) view.findViewById(R.id.cb_recording_stopAfter); final EditText et_stopAfter = (EditText) view.findViewById(R.id.et_recording_stopAfter); final Spinner sp_stopAfter = (Spinner) view.findViewById(R.id.sp_recording_stopAfter); // Setup the sample rate spinner: final ArrayAdapter<Integer> sampleRateAdapter = new ArrayAdapter<Integer>(this, android.R.layout.simple_list_item_1); for (int sampR : supportedSampleRates) sampleRateAdapter.add(sampR); sampleRateAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); sp_sampleRate.setAdapter(sampleRateAdapter); // Add listener to the frequency textfield, the sample rate spinner and the checkbox: et_frequency.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { if (et_frequency.getText().length() == 0) return; double freq = Double.valueOf(et_frequency.getText().toString()); if (freq < maxFreqMHz) freq = freq * 1000000; et_filename.setText(simpleDateFormat.format(new Date()) + "_" + SOURCE_NAMES[sourceType] + "_" + (long) freq + "Hz_" + sp_sampleRate.getSelectedItem() + "Sps.iq"); } }); sp_sampleRate.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { if (et_frequency.getText().length() == 0) return; double freq = Double.valueOf(et_frequency.getText().toString()); if (freq < maxFreqMHz) freq = freq * 1000000; et_filename.setText(simpleDateFormat.format(new Date()) + "_" + SOURCE_NAMES[sourceType] + "_" + (long) freq + "Hz_" + sp_sampleRate.getSelectedItem() + "Sps.iq"); } @Override public void onNothingSelected(AdapterView<?> parent) { } }); cb_stopAfter.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { et_stopAfter.setEnabled(isChecked); sp_stopAfter.setEnabled(isChecked); } }); // Set default frequency, sample rate and stop after values: et_frequency.setText("" + analyzerSurface.getVirtualFrequency()); int sampleRateIndex = 0; int lastSampleRate = preferences.getInt(getString(R.string.pref_recordingSampleRate), 1000000); for (; sampleRateIndex < supportedSampleRates.length; sampleRateIndex++) { if (supportedSampleRates[sampleRateIndex] >= lastSampleRate) break; } if (sampleRateIndex >= supportedSampleRates.length) sampleRateIndex = supportedSampleRates.length - 1; sp_sampleRate.setSelection(sampleRateIndex); cb_stopAfter.toggle(); // just to trigger the listener at least once! cb_stopAfter.setChecked(preferences.getBoolean(getString(R.string.pref_recordingStopAfterEnabled), false)); et_stopAfter.setText("" + preferences.getInt(getString(R.string.pref_recordingStopAfterValue), 10)); sp_stopAfter.setSelection(preferences.getInt(getString(R.string.pref_recordingStopAfterUnit), 0)); // disable sample rate selection if demodulation is running: if (demodulationMode != Demodulator.DEMODULATION_OFF) { sampleRateAdapter.add(source.getSampleRate()); // add the current sample rate in case it's not already in the list sp_sampleRate.setSelection(sampleRateAdapter.getPosition(source.getSampleRate())); // select it sp_sampleRate.setEnabled(false); // disable the spinner tv_fixedSampleRateHint.setVisibility(View.VISIBLE); } // Show dialog: new AlertDialog.Builder(this).setTitle("Start recording").setView(view) .setPositiveButton("Record", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { String filename = et_filename.getText().toString(); final int stopAfterUnit = sp_stopAfter.getSelectedItemPosition(); final int stopAfterValue = Integer.valueOf(et_stopAfter.getText().toString()); //todo check filename // Set the frequency in the source: if (et_frequency.getText().length() == 0) return; double freq = Double.valueOf(et_frequency.getText().toString()); if (freq < maxFreqMHz) freq = freq * 1000000; if (freq <= source.getMaxFrequency() && freq >= source.getMinFrequency()) source.setFrequency((long) freq); else { Toast.makeText(MainActivity.this, "Frequency is invalid!", Toast.LENGTH_LONG).show(); return; } // Set the sample rate (only if demodulator is off): if (demodulationMode == Demodulator.DEMODULATION_OFF) source.setSampleRate((Integer) sp_sampleRate.getSelectedItem()); // Open file and start recording: recordingFile = new File(externalDir + "/" + RECORDING_DIR + "/" + filename); recordingFile.getParentFile().mkdir(); // Create directory if it does not yet exist try { scheduler.startRecording(new BufferedOutputStream(new FileOutputStream(recordingFile))); } catch (FileNotFoundException e) { Log.e(LOGTAG, "showRecordingDialog: File not found: " + recordingFile.getAbsolutePath()); } // safe preferences: SharedPreferences.Editor edit = preferences.edit(); edit.putInt(getString(R.string.pref_recordingSampleRate), (Integer) sp_sampleRate.getSelectedItem()); edit.putBoolean(getString(R.string.pref_recordingStopAfterEnabled), cb_stopAfter.isChecked()); edit.putInt(getString(R.string.pref_recordingStopAfterValue), stopAfterValue); edit.putInt(getString(R.string.pref_recordingStopAfterUnit), stopAfterUnit); edit.apply(); analyzerSurface.setRecordingEnabled(true); updateActionBar(); // if stopAfter was selected, start thread to supervise the recording: if (cb_stopAfter.isChecked()) { Thread supervisorThread = new Thread() { @Override public void run() { Log.i(LOGTAG, "recording_superviser: Supervisor Thread started. (Thread: " + this.getName() + ")"); try { long startTime = System.currentTimeMillis(); boolean stop = false; // We check once per half a second if the stop criteria is met: Thread.sleep(500); while (recordingFile != null && !stop) { switch (stopAfterUnit) { // see arrays.xml - recording_stopAfterUnit case 0: /* MB */ if (recordingFile.length() / 1000000 >= stopAfterValue) stop = true; break; case 1: /* GB */ if (recordingFile.length() / 1000000000 >= stopAfterValue) stop = true; break; case 2: /* sec */ if (System.currentTimeMillis() - startTime >= stopAfterValue * 1000) stop = true; break; case 3: /* min */ if (System.currentTimeMillis() - startTime >= stopAfterValue * 1000 * 60) stop = true; break; } } // stop recording: stopRecording(); } catch (InterruptedException e) { Log.e(LOGTAG, "recording_superviser: Interrupted!"); } catch (NullPointerException e) { Log.e(LOGTAG, "recording_superviser: Recording file is null!"); } Log.i(LOGTAG, "recording_superviser: Supervisor Thread stopped. (Thread: " + this.getName() + ")"); } }; supervisorThread.start(); } } }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { // do nothing } }).show().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); }
From source file:com.dish.browser.activity.BrowserActivity.java
private void showCloseDialog(final int position) { AlertDialog.Builder builder = new AlertDialog.Builder(mActivity); ArrayAdapter<String> adapter = new ArrayAdapter<>(mActivity, android.R.layout.simple_dropdown_item_1line); adapter.add(mActivity.getString(R.string.close_tab)); adapter.add(mActivity.getString(R.string.close_all_tabs)); builder.setAdapter(adapter, new DialogInterface.OnClickListener() { @Override/*from w w w .jav a2 s . co m*/ public void onClick(DialogInterface dialog, int which) { switch (which) { case 0: deleteTab(position); break; case 1: closeBrowser(); break; default: break; } } }); builder.show(); }
From source file:org.uguess.android.sysinfo.SiragonManager.java
void refresh() { ArrayAdapter<PrefItem> adapter = (ArrayAdapter<PrefItem>) getListAdapter(); adapter.setNotifyOnChange(false);//from ww w. j av a2 s .com adapter.clear(); for (Entry<String, PrefItem> ent : prefs.entrySet()) { adapter.add(ent.getValue()); } adapter.notifyDataSetChanged(); }