I'm doing android application which is something like a car blackbox which records the travelling process of the car.
But now i'm face with the problem of how am i going to integrate an accelerometer which is capable of detecting slight movement (Probably > 1Gs) when an accident occur it could trigger the video recording to stop and saving it to the Archive file, thus not losing the file as a result to the accident..
I'm new to android/java could someone help guide me along? Thanks in advance...
This is part of the section of the video recording but now how am i going to incorporate accelerometer for "Auto-Archiving" purposes?
Code:
public boolean startRecording(){
try {
encodingStatus = Tab1Activity.encodingPref;
videoResolution = Tab1Activity.videoResPref;
fileFormat = Tab1Activity.fileFormatPref;
audioStatus = Tab2Activity.audioPref;
timeInterval = Tab2Activity.timeIntervalPref;
Toast.makeText(getBaseContext(), "Recording Started", Toast.LENGTH_SHORT).show();
try{
ServiceCamera.reconnect();
ServiceCamera.unlock();
}
catch(Exception e){
}
mediaRecorder = new MediaRecorder();
mediaRecorder.setCamera(ServiceCamera);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
mediaRecorder.setMaxDuration(timeInterval);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mediaRecorder.setVideoEncoder(encodingStatus);
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH_mm_ss");
Date date = new Date();
File dirlist = new File(Environment.getExternalStorageDirectory() + "/VideoList");
if(!(dirlist.exists()))
dirlist.mkdir();
File TempFile = new File(Environment.getExternalStorageDirectory() + "/VideoList", dateFormat.format(date) + fileFormat);
mediaRecorder.setOutputFile(TempFile.getPath());
String[] separatedRes = videoResolution.split("x");
separatedRes[0];
separatedRes[1];
mediaRecorder.setVideoSize(surfaceView.getWidth(),surfaceView.getHeight());
//mediaRecorder.setVideoFrameRate(videoFramesPerSecond);
mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
mediaRecorder.prepare();
mediaRecorder.start();
recordingStatus = true;
return true;
}
Can someone help me??
Related
As asked, is it possible? Here's part of my code.
I don't know how to change it, please help me!
Bundle b = New_Entry.this.getIntent().getExtras();
String s1 = b.getString("image");
try {
new File("/sdcard/myImages").mkdirs();
InputStream in = getResources().openRawResource(imageSID[position]);
File f2 = new File("/sdcard/myimages"+filename[position]);
OutputStream out = new FileOutputStream(f2);
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0){
out.write(buf, 0, len);
}
in.close();
out.close();
} catch(Exception x) {
Toast.makeText(getBaseContext(),
"Error!", Toast.LENGTH_SHORT).show();
}
And yes, the error toast came up!
Hello, I want to download a xml file in local storage that I will parse.
The code is this
URL website = new URL("http://juventus.com/rss/news/ita.xml");
ReadableByteChannel rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(c.getFilesDir()+"/eng.xml");
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
This is called in doInBackground() of a AsyncTask class.
I get this error:
08-01 22:17:40.061: E/AndroidRuntime(9002): java.lang.RuntimeException: An error occured while executing doInBackground()
08-01 22:17:40.061: E/AndroidRuntime(9002): Caused by: java.lang.IllegalArgumentException: position=0 count=9223372036854775807
08-01 22:17:40.061: E/AndroidRuntime(9002): at java.nio.FileChannelImpl.transferFrom(FileChannelImpl.java:359)
What I do wrong?
I also tried this:
URL website = new URL("http://juventus.com/rss/news/ita.xml");
ReadableByteChannel rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = c.openFileOutput("eng.xml", Context.MODE_PRIVATE);
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
Hope you help me.
Thanks!
Try this...
Code:
URLConnection conn;
Log.d(TAG, "onDownload....path is: " + path);
try {
URL url = new URL(path);
conn = url.openConnection();
contentLength = conn.getContentLength();
DataInputStream in = new DataInputStream(conn.getInputStream());
Log.d(TAG, "Buffering the received stream(size=" + contentLength);
if (contentLength != -1) {
buffer = new byte[contentLength];
in.readFully(buffer);
in.close();
}else{
result = false;
return;
}
if (buffer.length > 0) {
Log.d(TAG,
"onDownload. Writing file to files dir,");
DataOutputStream out;
FileOutputStream fos = context.openFileOutput(fileName,
Context.MODE_PRIVATE);
Log.d(TAG, "Writing from buffer to the new file.." + fileName);
out = new DataOutputStream(fos);
out.write(buffer);
out.flush();
out.close();
result = true;
Edit: Here I am returning a boolean to indicate successful download.
I have this code which sets a proxy on a WebView on Android 4.4.x and it used to work great but after the 4.4.4 it stopped working. It still works on 4.4.2 and it used to work on 4.4.3. Anyone have any idea of how to fix it? Thanks.
Code:
private static boolean setProxyKK(WebView webView, String host, int port, String applicationClassName) {
Log.d(LOG_TAG, "Setting proxy with >= 4.4 API.");
Context appContext = webView.getContext().getApplicationContext();
System.setProperty("http.proxyHost", host);
System.setProperty("http.proxyPort", port + "");
System.setProperty("https.proxyHost", host);
System.setProperty("https.proxyPort", port + "");
try {
Class applictionCls = Class.forName(applicationClassName);
Field loadedApkField = applictionCls.getField("mLoadedApk");
loadedApkField.setAccessible(true);
Object loadedApk = loadedApkField.get(appContext);
Class loadedApkCls = Class.forName("android.app.LoadedApk");
Field receiversField = loadedApkCls.getDeclaredField("mReceivers");
receiversField.setAccessible(true);
ArrayMap receivers = (ArrayMap) receiversField.get(loadedApk);
for (Object receiverMap : receivers.values()) {
for (Object rec : ((ArrayMap) receiverMap).keySet()) {
Class clazz = rec.getClass();
if (clazz.getName().contains("ProxyChangeListener")) {
Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
/*********** optional, may be need in future *************/
final String CLASS_NAME = "android.net.ProxyProperties";
Class cls = Class.forName(CLASS_NAME);
Constructor constructor = cls.getConstructor(String.class, Integer.TYPE, String.class);
constructor.setAccessible(true);
Object proxyProperties = constructor.newInstance(host, port, null);
intent.putExtra("proxy", (Parcelable) proxyProperties);
/*********** optional, may be need in future *************/
onReceiveMethod.invoke(rec, appContext, intent);
}
}
}
Log.d(LOG_TAG, "Setting proxy with >= 4.4 API successful!");
return true;
} catch (ClassNotFoundException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
} catch (NoSuchFieldException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
} catch (IllegalAccessException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
} catch (IllegalArgumentException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
} catch (NoSuchMethodException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
} catch (InvocationTargetException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
} catch (InstantiationException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
String exceptionAsString = sw.toString();
Log.v(LOG_TAG, e.getMessage());
Log.v(LOG_TAG, exceptionAsString);
}
return false;
}
I can't populate database in android 4.4 using phonegap when I run my app the first time, but if I close the app and open it again this task works fine.
I have a 0000000000000001.db in assets and I want put this in Android 4.4 memory.
How can I deal with such Issue?
I'm using this code to populate the database in Android 4.4 memory
Code:
public void copyDatabase(){
// DB_NAME2 = "Databases.db";
//ASSETS = "0000000000000001.db";
//DB_PATH2 = "/data/data/com.example.testapp/app_webview/databases/";
//DB_PATH3 = "/data/data/com.example.testapp/app_webview/databases/file__0/";
//DB_NAME3 = "1";
String path = DB_PATH2 + DB_NAME2;
String path2 = DB_PATH3 + DB_NAME3;
File checkDatabase = new File(DB_PATH2);
File checkDatabase2 = new File(DB_PATH3);
if (!checkDatabase.exists())
{
checkDatabase.mkdir();
}
if (!checkDatabase2.exists())
{
checkDatabase2.mkdir();
}
try{
InputStream is = context.getAssets().open(DB_NAME2);
OutputStream os = new FileOutputStream(path);
InputStream is2 = context.getAssets().open(ASSETS);
OutputStream os2 = new FileOutputStream(path2);
byte[] buffer = new byte[10240];
int line;
while ((line = is.read(buffer))>0)
{
os.write(buffer, 0, line);
}
os.flush();
os.close();
is.close();
buffer = new byte[10240];
line = 0;
while ((line = is2.read(buffer))>0)
{
os2.write(buffer, 0, line);
}
os2.flush();
os2.close();
is2.close();
}catch(IOException e){
System.out.println("Problem "+e);
}
}
Hi,
I am currently working on an app which is modifying the others.xml in system/csc/.
I were able to get the text inside my app via:
Code:
final static String filename = "others.xml";
final static String path = (Environment.getRootDirectory() + "/csc/");
Process p;
p = Runtime.getRuntime().exec("su");
FileInputStream fileInputStream = new FileInputStream(new File(path, filename));
InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder stringBuilder = new StringBuilder();
while ( (line = bufferedReader.readLine()) != null) {
stringBuilder.append(line + System.getProperty("line.separator"));
}
Now I want to add this line of code inside the others.xml
<CscFeature_SystemUI_ConfigOverrideDataIcon>4G</CscFeature_SystemUI_ConfigOverrideDataIcon>
So I used this code
Code:
try {
Process p;
p = Runtime.getRuntime().exec("su");
p = Runtime.getRuntime().exec("mount -o remount,rw /system");
File file = new File(path, filename);
FileOutputStream fileOutputStream = new FileOutputStream(file, true);
fileOutputStream.write(("<CscFeature_SystemUI_ConfigOverrideDataIcon>4G</CscFeature_SystemUI_ConfigOverrideDataIcon>" + System.getProperty("line.separator")).getBytes());
return "4G";
}catch (FileNotFoundException ex) {
Log.d(TAG, ex.getMessage());
}catch (IOException ex) {
Log.d(TAG, ex.getMessage());
}
But after FileOutputStream fileOutputStream = new FileOutputStream(file, true); the programm is switching into the FileNotException because it is Read-Only.
Do you guys have any idea how I can add my xml code to the file during it is in this read-only part of the system?
Thanks in advance
MisterEvo