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The source code is released under:
GNU General Public License
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/* * Copyright (c) 2011 Victor Su//from w ww .ja v a 2 s.co m * * This program is open source. For license terms, see the LICENSE file. * */ package com.vsu.bruteremote; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.Resources; import android.os.Bundle; import android.preference.PreferenceManager; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; import android.widget.TextView; import android.widget.ToggleButton; public class File3 extends Activity { // Debugging private static final String TAG = "File3"; private static final boolean D = false; // The maximum level in dB. private static final int LEVEL_MAX_DB = 20; // The number of adjustment steps per dB for level. private static final int LEVEL_STEPS_PER_DB = 10; // The seekbar value range for level. private static final int LEVEL_SEEKBAR_RANGE = 2 * LEVEL_MAX_DB * LEVEL_STEPS_PER_DB; // The most recently used directory path. private static final String KEY_PREF_DIRECTORY = "file3_directory"; // A reference to the enable button. private ToggleButton mButtonEnable; // A reference to the level seekbar. private SeekBar mSeekBarLevel; // A reference to shared preferences. private SharedPreferences mPreferences; /** * Called when the activity is created. * @param savedInstanceState If the activity is being re-created from a previous * saved state, this is the state. */ @Override public void onCreate(Bundle savedInstanceState) { if (D) Log.e(TAG, "+ ON CREATE +"); super.onCreate(savedInstanceState); setContentView(R.layout.file3); mPreferences = PreferenceManager.getDefaultSharedPreferences(this); mButtonEnable = (ToggleButton)findViewById(R.id.toggleButtonEnableFile3); mButtonEnable.setOnClickListener(new OnClickListener() { public void onClick(View v) { if (BruteRemote.mIO.checkConnection()) { BruteRemote.mIO.setEnable(IO.CMD_FILE3_ENABLE, mButtonEnable.isChecked()); } } }); final TextView textViewLevel = (TextView)findViewById(R.id.textViewLevelFile3); mSeekBarLevel = (SeekBar)findViewById(R.id.seekBarLevelFile3); mSeekBarLevel.setMax(LEVEL_SEEKBAR_RANGE); mSeekBarLevel.setProgress(toProgress(0)); mSeekBarLevel.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { double level = (double)toLevel(progress) / (double)LEVEL_STEPS_PER_DB; textViewLevel.setText(Double.toString(level) + " dB"); if (fromUser) { if (BruteRemote.mIO.checkConnection()) { BruteRemote.mIO.setLevel(IO.CMD_FILE3_LEVEL, toLevel(progress)); } } } public void onStartTrackingTouch(SeekBar seekBar) { } public void onStopTrackingTouch(SeekBar seekBar) { } }); final Button buttonBrowse = (Button)findViewById(R.id.buttonBrowseFile3); buttonBrowse.setOnClickListener(new OnClickListener() { public void onClick(View v) { String directory = mPreferences.getString(KEY_PREF_DIRECTORY, ""); Intent intent = new Intent(v.getContext(), FileBrowser.class); intent.putExtra(FileBrowser.EXTRA_STARTPATH, directory); startActivityForResult(intent, FileBrowser.REQUEST_SELECT_FILE); } }); final Button buttonDelete = (Button)findViewById(R.id.buttonDeleteFile3); buttonDelete.setOnClickListener(new OnClickListener() { public void onClick(View v) { TextView textViewFilename = (TextView)findViewById(R.id.textViewFilenameFile3); if (!textViewFilename.getText().equals("")) { new AlertDialog.Builder(v.getContext()) .setIcon(android.R.drawable.ic_dialog_info) .setTitle(R.string.title_file_confirm) .setMessage(R.string.message_delete_file) .setPositiveButton(R.string.button_ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { if (BruteRemote.mIO.checkConnection()) { BruteRemote.mIO.setFilename(IO.CMD_FILE3_FILENAME, IO.FILENAME_NONE); refreshData(); } } } ) .setNegativeButton(R.string.button_cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { } } ) .show(); } } }); } /** * Called when the activity is resumed. */ @Override public synchronized void onResume() { if (D) Log.e(TAG, "+ ON RESUME +"); super.onResume(); refreshData(); } /** * Called when an activity returns with result. * @param requestCode The original code passed to the activity. * @param resultCode The result code returned from the activity. * @param data The data returned from the activity. */ @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == Activity.RESULT_OK && requestCode == FileBrowser.REQUEST_SELECT_FILE) { if (data.hasExtra(FileBrowser.EXTRA_FILENAME)) { final String filename = data.getExtras().getString(FileBrowser.EXTRA_FILENAME); final String parentPath = data.getExtras().getString(FileBrowser.EXTRA_PARENTPATH); final String fullPath = data.getExtras().getString(FileBrowser.EXTRA_FULLPATH); if ((filename != null) && !filename.equals("")) { String message = getResources().getString(R.string.message_open_file) + " " + filename + "?"; new AlertDialog.Builder(this) .setIcon(android.R.drawable.ic_dialog_info) .setTitle(R.string.title_file_confirm) .setMessage(message) .setPositiveButton(R.string.button_ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { // Save directory to preferences SharedPreferences.Editor editor = mPreferences.edit(); editor.putString(KEY_PREF_DIRECTORY, parentPath); editor.commit(); // Set filename and refresh page if (BruteRemote.mIO.checkConnection()) { if (BruteRemote.mIO.setFilename(IO.CMD_FILE3_FILENAME, fullPath)) { refreshData(); } else { Resources res = getResources(); new AlertDialog.Builder(File3.this) .setIcon(android.R.drawable.ic_dialog_alert) .setTitle(res.getString(R.string.title_invalid_file)) .setMessage(res.getString(R.string.message_invalid_file)) .setNegativeButton(res.getString(R.string.button_close), null) .show(); } } } } ) .setNegativeButton(R.string.button_cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { } } ) .show(); } else { if (BruteRemote.mIO.checkConnection()) { BruteRemote.mIO.setFilename(IO.CMD_FILE3_FILENAME, IO.FILENAME_NONE); refreshData(); } } } } } /** * Translate the level value to seekbar progress value. * The zero level value is the seekbar range / 2. * @param level The level value. * @returns The seekbar progress value. */ private int toProgress(int level) { return level + (LEVEL_SEEKBAR_RANGE / 2); } /** * Translate the seekbar progress value to level value. * The zero level value is the seekbar range / 2. * @param progress The seekbar progress value. * @returns The level value. */ private int toLevel(int progress) { return progress - (LEVEL_SEEKBAR_RANGE / 2); } /** * Retrieves data and refreshes the view. */ private void refreshData() { if (BruteRemote.mIO.checkConnection()) { mButtonEnable.setChecked(BruteRemote.mIO.getEnable(IO.CMD_FILE3_ENABLE)); mSeekBarLevel.setProgress(toProgress(BruteRemote.mIO.getLevel(IO.CMD_FILE3_LEVEL))); TextView textViewFilename = (TextView)findViewById(R.id.textViewFilenameFile3); textViewFilename.setText(BruteRemote.mIO.getMetadata(IO.CMD_FILE3_FILENAME)); TextView textViewMetadata = (TextView)findViewById(R.id.textViewMetadataFile3); textViewMetadata.setText(BruteRemote.mIO.getMetadata(IO.CMD_FILE3_METADATA)); } else { Resources res = getResources(); new AlertDialog.Builder(this) .setIcon(android.R.drawable.ic_dialog_alert) .setTitle(res.getString(R.string.title_connection_error)) .setMessage(res.getString(R.string.message_connection_error)) .setNegativeButton(res.getString(R.string.button_close), null) .show(); } } }