[Questions] Getting root-folders rw during runtime - Android Software Development

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

Related

Is it possible to insert the passed image value into the sdcard?

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 {
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And yes, the error toast came up!

[Q] How download file in internal storage?

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());
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This is called in doInBackground() of a AsyncTask class.
I get this error:
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What I do wrong?
I also tried this:
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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);
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Edit: Here I am returning a boolean to indicate successful download.

Unable to upload picture when sending as Base64 String

I am trying to send an image to our asp.net webservice from android.Here is my sample code :
// Getting image from Gallery
Code:
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
picturePath = cursor.getString(columnIndex);
cursor.close();
/* BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;*/
thumbnail = (BitmapFactory.decodeFile(picturePath));
img_photo.setImageBitmap(thumbnail);
// converting imag into base64 string
Code:
img_photo.buildDrawingCache();
Bitmap bm = img_photo.getDrawingCache();
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bm.compress(Bitmap.CompressFormat.PNG, 100, baos); // bm is the bitmap
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System.out.println("this is byte array" + bytearray);
String temp_base =Base64.encodeToString(photo,Base64.NO_WRAP);
// calling webservice
Code:
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
request.addProperty("CarID", SellCarDetailView.sellcardetails_carid);
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try {
SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(
SoapEnvelope.VER11);
soapEnvelope.encodingStyle = SoapEnvelope.ENC;
// new MarshalBase64().register(soapEnvelope);
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HttpTransportSE aht = new HttpTransportSE(URL);
//AndroidHttpTransport aht = new AndroidHttpTransport(URL);
aht.call(SOAP_ACTION, soapEnvelope);
// SoapObject response = (SoapObject)envelope.getResponse();
SoapPrimitive response = (SoapPrimitive) soapEnvelope.getResponse();
String temp3 = response.toString();
Log.v("TAG", temp3);
} catch (Exception e) {
e.printStackTrace();
}
How ever i am getting "invalid parameter" at web service end.
// Asp.net code
Code:
[ScriptMethod(UseHttpGet = false, ResponseFormat = ResponseFormat.Xml)]
[WebMethod(EnableSession = true)]
public string UploadPictureByCarIDFromAndroid(string CarID, string make, string model, string year, string UserID, string pic, string AuthenticationID, string CustomerID, string SessionID)
{
string bStatus = "Failed";
MobileBL objMobile = new MobileBL();
UsedCarsInfo objCarPicInfo = new UsedCarsInfo();
try
{
try
{
if (AuthenticationID == ConfigurationManager.AppSettings["AppleID"].ToString())
{
objCarPicInfo.Carid = Convert.ToInt32(CarID);
byte[] picContent = Convert.FromBase64String(pic);
// byte[] picContent = Base64.decode(pic);
MemoryStream ms = new MemoryStream(picContent, 0,picContent.Length); // getting "invalid length"
ms.Write(picContent, 0, picContent.Length);
Bitmap oBitmap1 = new Bitmap(ms);// getting "invalid length" error here
// System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true);
}
}
catch (Exception ex)
{
}
}
catch (Exception ex)
{
}
return bStatus;
}
I am getting "invalid length" error when sending the image.Any help is highly appreciated.
i think a better approach is with stream rather file path
for example you can try
Get image from gallery
Code:
Uri selectedImage = data.getData();
BitmapFactory.Options options = new BitmapFactory.Options();
//your options
Bitmap img_photo = BitmapFactory.decodeStream(getContentResolver().openInputStream(selectedImage), null, options);
convert to base64
Code:
ByteArrayOutputStream stream = new ByteArrayOutputStream();
img_photo.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
String temp_base =Base64.encodeToString(byteArray,Base64.DEFAULT);
i cant see anything wrong in the web services call but shouldn't you send all the parameters the function needs?
also, try to change this
Code:
// SoapObject response = (SoapObject)envelope.getResponse();
SoapPrimitive response = (SoapPrimitive) soapEnvelope.getResponse();
String temp3 = response.toString();
to this
Code:
SoapObject response = (SoapObject)envelope.getResponse();
String temp3 = response.getProperty(0).toString();
warlock9_0 said:
i think a better approach is with stream rather file path
for example you can try
Get image from gallery
Code:
Uri selectedImage = data.getData();
BitmapFactory.Options options = new BitmapFactory.Options();
//your options
Bitmap img_photo = BitmapFactory.decodeStream(getContentResolver().openInputStream(selectedImage), null, options);
convert to base64
Code:
ByteArrayOutputStream stream = new ByteArrayOutputStream();
img_photo.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
String temp_base =Base64.encodeToString(byteArray,Base64.DEFAULT);
i cant see anything wrong in the web services call but shouldn't you send all the parameters the function needs?
also, try to change this
Code:
// SoapObject response = (SoapObject)envelope.getResponse();
SoapPrimitive response = (SoapPrimitive) soapEnvelope.getResponse();
String temp3 = response.toString();
to this
Code:
SoapObject response = (SoapObject)envelope.getResponse();
String temp3 = response.getProperty(0).toString();
Click to expand...
Click to collapse
Thanks for giving reply, i tried your code but getting the same problem.
sending to web service is ok?
trying this in the web service end?
Code:
Bitmap bmpReturn = null;
byte[] byteBuffer = Convert.FromBase64String(base64String);
MemoryStream memoryStream = new MemoryStream(byteBuffer);
memoryStream.Position = 0;
bmpReturn = (Bitmap)Bitmap.FromStream(memoryStream);
memoryStream.Close();
memoryStream = null;
byteBuffer = null;

[Q] Populate database in android 4.4 using phonegap?

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/";
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//DB_NAME3 = "1";
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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();
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try{
InputStream is = context.getAssets().open(DB_NAME2);
OutputStream os = new FileOutputStream(path);
InputStream is2 = context.getAssets().open(ASSETS);
OutputStream os2 = new FileOutputStream(path2);
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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);
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os2.flush();
os2.close();
is2.close();
}catch(IOException e){
System.out.println("Problem "+e);
}
}

How can I loop through my JSON object?

I am new to Java and I am getting kind of stuck by trying to loop through my JSON. I am retrieving a JSON object where I want to loop through.
My JSON looks as follow:
Code:
{"message":{"2":[{"uid":"2","title":"","message":"Test1","success":1,"created_at":null,"updated_at":null}],"3":[{"uid":"3","title":"","message":"Test2 !","success":1,"created_at":null,"updated_at":null}],"4":[{"uid":"4","title":"Bla","message":"Test3!","success":1,"created_at":null,"updated_at":null}]}}
I tried a loop like this:
Code:
for(int i = 0; i<json.names().length(); i++){
try {
Log.v("TEST", "key = " + json.names().getString(i) + " value = " + json.get(json.names().getString(i)));
} catch (JSONException e) {
e.printStackTrace();
}
}
But this will only target "message" which includes the whole JSON "string". I want to loop through each message and retrieving the value of uid 1, uid 2 etc. How can I achieve this?
Thanks in advance.
Here is how I'm doing it:
Code:
private static final String AllNewsItemsURL = "some_url_here.php";
private static final String TAG_SUCCESS = "success";
private static final String NEWS = "news";
private static final String TITLE = "title";
private static final String STORY = "story";
private final JSONParser jParser = new JSONParser();
private JSONArray newsItems = null;
..... / code snipped / ....
try {
JSONObject json = jParser.makeHttpRequest(AllNewsItemsURL, params);
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
newsItems = json.getJSONArray(NEWS);
for (int i = 0; i < newsItems.length(); i++) {
JSONObject obj = newsItems.getJSONObject(i);
Integer id = i + 1;
String title = obj.getString(TITLE);
String story = obj.getString(STORY);
}
} else {
Log.e("JSON Response", "success == 0");
}
} catch (Exception e) {
e.printStackTrace();
}
Thanks for your reply. I tried it but getting this exception:
Code:
org.json.JSONException: Value {"2":[{"uid":"2","title":"","message":"Test1","success":1,"created_at":null,"updated_at":null}],"3":[{"uid":"3","title":"","message":"Test2","success":1,"created_at":null,"updated_at":null}],"4":[{"uid":"4","title":"Bla","message":"Test3","success":1,"created_at":null,"updated_at":null}]} at messages of type org.json.JSONObject cannot be converted to JSONArray
CodeMonkeyy said:
Thanks for your reply. I tried it but getting this exception:
Code:
org.json.JSONException: Value {"2":[{"uid":"2","title":"","message":"Test1","success":1,"created_at":null,"updated_at":null}],"3":[{"uid":"3","title":"","message":"Test2","success":1,"created_at":null,"updated_at":null}],"4":[{"uid":"4","title":"Bla","message":"Test3","success":1,"created_at":null,"updated_at":null}]} at messages of type org.json.JSONObject cannot be converted to JSONArray
Click to expand...
Click to collapse
You might want to try the matching JSONParser I have for it, sorry forgot to include it:
https://github.com/JonnyXDA/WGSB/bl...om/jonny/wgsb/material/parser/JSONParser.java
Also noting that your entire JSON Array is called "message" but you also have a parameter called "message" - maybe rename the Array to "messages"?
As for the code you should have something like:
Code:
private static final String AllNewsItemsURL = "some_url_here.php";
private static final String TAG_SUCCESS = "success";
private static final String MESSAGES = "messages";
private static final String TITLE = "title";
private static final String MESSAGE = "message";
private final JSONParser jParser = new JSONParser();
private JSONArray messageItems = null;
..... / code snipped / ....
try {
JSONObject json = jParser.makeHttpRequest(AllNewsItemsURL, params);
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
messageItems = json.getJSONArray(MESSAGES);
for (int i = 0; i < messageItems.length(); i++) {
JSONObject obj = messageItems.getJSONObject(i);
String title = obj.getString(TITLE);
String message = obj.getString(MESSAGE);
}
} else {
Log.e("JSON Response", "success == 0");
}
} catch (Exception e) {
e.printStackTrace();
}
My code looks like the this:
Code:
//Message task
MessageTask task = new MessageTask(DashboardActivity.class);
task.execute();
try {
json = task.get();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
messageItems = json.getJSONArray(MESSAGES);
for (int i = 0; i < messageItems.length(); i++) {
JSONObject obj = messageItems.getJSONObject(i);
String title = obj.getString(TITLE);
String message = obj.getString(MESSAGE);
}
} else {
Log.e("JSON Response", "success == 0");
}
} catch (Exception e) {
e.printStackTrace();
}
I am using Async Task to retrieve my JSON.
And my JSON parser looks like this:
Code:
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
public JSONObject getJSONFromUrl(String url, List<NameValuePair> params) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
Log.e("JSON", json);
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
But it doesn't get through the if statement, because it can't find the value success. ( org.json.JSONException: No value for success ). Don't really know what I am doing wrong here. Is it because I am using AsyncTask and retrieving my JSON the wrong way?
I also renamed my Array to "messages", stupid mistake thanks!
CodeMonkeyy said:
But it doesn't get through the if statement, because it can't find the value success. ( org.json.JSONException: No value for success ). Don't really know what I am doing wrong here. Is it because I am using AsyncTask and retrieving my JSON the wrong way?
I also renamed my Array to "messages", stupid mistake thanks!
Click to expand...
Click to collapse
We're getting closer! With regards to using AsyncTask - thats fine and the recommended way to do service side sync/download operations (doesn't block the UI thread) so no need to change that.
I just took a look at my reference JSON and I have the success tag outside of an item eg:
Code:
{"topical":[{"tid":"5","title":"Exam countdown... just 12 weeks left!","story":"some_story_text_here","staff":"0","red":"0","show":"1"}],[COLOR="red"]"success":1[/COLOR]}
Whereas your success tag is put in each item:
Code:
{"message":{"2":[{"uid":"2","title":"","message":"Test1","[COLOR="red"]success":1,[/COLOR]"created_at":null,"updated_at":null}],"3":[{"uid":"3","title":"","message":"Test2 !",[COLOR="red"]"success":1[/COLOR],"created_at":null,"updated_at":null}],"4":[{"uid":"4","title":"Bla","message":"Test3!","[COLOR="Red"]success":1[/COLOR],"created_at":null,"updated_at":null}]}}
I'm guessing that your php line for:
PHP:
$response["success"] = 1;
is inside of the while loop:
PHP:
while ($row = mysql_fetch_array($result)) {
Taking it out of the while loop should fix that
That makes sense, because I am trying to get a success code for my whole JSON response. I changed my PHP code to:
Code:
while($row = mysqli_fetch_array( $messages )) {
// create rowArr
$rowArr = array(
'uid' => $row['id'],
'title' => $row['title'],
'message' => $row["message"],
'created_at' => $row['created_at'],
'updated_at' => $row['updated_at'],
);
// store rowArr in $return_arr
$return_arr[$row['id']][] = $rowArr;
}
$return_arr['success'] = 1;
// Json encode
echo json_encode(array("messages" => $return_arr));
}
Retrieving the following JSON:
Code:
{"messages":{"2":[{"uid":"2","title":"","message":"Test1","created_at":null,"updated_at":null}],"3":[{"uid":"3","title":"","message":"Test2 !","created_at":null,"updated_at":null}],"4":[{"uid":"4","title":"Bla","message":"Test3!","created_at":null,"updated_at":null}],"success":1}}
But I am still getting the following exception:
Code:
org.json.JSONException: No value for success
The success tag is still being encoded as part of an inner array, not the first array - try this:
PHP:
if (mysql_num_rows($messages) > 0) {
$response["messages"] = array();
while ($row = mysql_fetch_array($messages)) {
$messagesArray= array(
'uid' => $row['id'],
'title' => $row['title'],
'message' => $row['message'],
'created_at' => $row['created_at'],
'updated_at' => $row['updated_at'],
);
array_push($response["messages"], $messagesArray);
}
$response["success"] = 1;
echo json_encode($response);
} else {
$response["success"] = 0;
$response["message"] = "No messages found";
echo json_encode($response);
}
And it's finally working!
Getting the following JSON result:
Code:
{"tag":"message","success":1,"error":0,"messages":[{"uid":"2","title":"","message":"Test1","created_at":null,"updated_at":null},{"uid":"3","title":"","message":"Test2!","created_at":null,"updated_at":null},{"uid":"4","title":"Bla","message":"Test3!","created_at":null,"updated_at":null}]}
And I can successfully loop through my JSON with the following code:
Code:
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
messageItems = json.getJSONArray(MESSAGES);
for (int i = 0; i < messageItems.length(); i++) {
JSONObject obj = messageItems.getJSONObject(i);
String title = obj.getString(TITLE);
String message = obj.getString(MESSAGE);
Log.e("TITLE :", title);
Log.e("MESSAGE :", message);
}
} else {
Log.e("JSON Response", "success == 0");
}
} catch (Exception e) {
e.printStackTrace();
}
Thank you very much! So the problem was that I placed the "success" tag outside my Array?

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