Database Users

[Q] Saving drawables to SD

hello again. does anyone here know the proper way to save images (drawable resources) displayed in an app to the sd card/gallery? ive found two different methods that have given me the same result of saving an image of very degraded quality (tried using both JPG and PNG compression).
here is the code i currently have hacked together:
Code:
String imagename = modelname.toLowerCase() + "_photo_" + imagenum;
Log.i(DEBUG_TAG,"image : " + modelname.toLowerCase() + "_photo_" + imagenum);
int resID = getResources().getIdentifier(imageName,"drawable",packageName);
Log.i(DEBUG_TAG,"resID : " + resID);
Bitmap bmp = BitmapFactory.decodeResource(getResources(), resID);
File SpicyDirectory = new File("/sdcard/Images/");
SpicyDirectory.mkdirs();
String filename="/sdcard/Images/" + imagename + ".jpg";
FileOutputStream out = null;
try {
out = new FileOutputStream(filename);
bmp.compress(Bitmap.CompressFormat.JPG, 100, out);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
out.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
out=null;
}
someone save my a$$ plz
ty

bamp
dont let me put a crappy app out there

[Q] Help with App permission search application

Hello,
I am student in my final year doing a project based on android development. I am thinking of creating an application that scans all the installed application in the device and recover all the list of permission associated with the app.. I will then manually use the data to check the manifest files manually, so that I can flag up any app that has more permission than it should.
I am learning and just starting creating it in eclipse. But, any advice would greatly be appreciated as am new to this development world.
I am thinking of creating a GUI for the layout but how can I make it list all the installed application on the device before I can proceed into getting the permission.
Thank you.

You need to use the PackageManager
The solution is on stackoverflow (love that site), but since I can't post links yet, I'll simply give you the code (should work):
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
final List pkgAppsList = getPackageManager().queryIntentActivities(mainIntent, 0);
for (Object obj : pkgAppsList) {
ResolveInfo resolveInfo = (ResolveInfo) obj;
PackageInfo packageInfo = null;
try {
packageInfo = getPackageManager().getPackageInfo(resolveInfo.activityInfo.packageName, PackageManager.GET_PERMISSIONS);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String[] requestedPermissions = packageInfo.requestedPermissions;
}
Good luck!!

Edwin Bos said:
You need to use the PackageManager
The solution is on stackoverflow (love that site), but since I can't post links yet, I'll simply give you the code (should work):
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
final List pkgAppsList = getPackageManager().queryIntentActivities(mainIntent, 0);
for (Object obj : pkgAppsList) {
ResolveInfo resolveInfo = (ResolveInfo) obj;
PackageInfo packageInfo = null;
try {
packageInfo = getPackageManager().getPackageInfo(resolveInfo.activityInfo.packageName, PackageManager.GET_PERMISSIONS);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String[] requestedPermissions = packageInfo.requestedPermissions;
}
Good luck!!
Click to expand...
Click to collapse
Is it possible I can create it within a searchView so that it can search it and display the installed application. But, displayed the app in a scroll view as well.

[Q] Google Drive android api - Downloading sqlite db file from drive

I am using the below code for downloading an already uploaded sqlite db file from google drive to the data/data/packagename/databases folder, but when the method completes, I am seeing a db corruption warning message logged in logcat and also all the data on the device for the app is overwritten and shows up blank, upon opening the app.
Code:
mfile = Drive.DriveApi.getFile(mGoogleApiClient, mResultsAdapter.getItem(0).getDriveId());
mfile.openContents(mGoogleApiClient, DriveFile.MODE_READ_ONLY, null).setResultCallback(contentsOpenedCallback);
--mfile is an instance of DriveFile
final private ResultCallback<ContentsResult> contentsOpenedCallback = new ResultCallback<ContentsResult>()
{
@Override
public void onResult(ContentsResult result)
{
if (!result.getStatus().isSuccess())
{
FileUtils.appendLog(getApplicationContext(), Tag + "-onResult", "Error opening file");
return;
}
try
{
if (GetFileFromDrive(result))
{
//FileUtils.Restore(getApplicationContext());
SharedPrefHelper.EditSharedPreference(getApplicationContext(), Constants.PREFS_DO_RESTORE, false);
}
}
catch (FileNotFoundException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
private boolean GetFileFromDrive(ContentsResult result)
{
Contents contents = result.getContents();
//InputStreamReader rda = new InputStreamReader(contents.getInputStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(contents.getInputStream()));
FileOutputStream outStream;
String currLine;
boolean restoreSuccess = false;
File sourceDbFile = BackupDBBeforeDeletion();
if(sourceDbFile != null)
sourceDbFile.delete();
try
{
outStream = new FileOutputStream(getApplicationContext().getDatabasePath(Constants.DB_NAME));
while ((currLine = reader.readLine()) != null)
{
outStream.write(currLine.getBytes());
}
outStream.flush();
reader.close();
outStream.close();
restoreSuccess = true;
}
catch (FileNotFoundException e)
{
// TODO: Log exception
}
catch (IOException e)
{
// TODO: Log Exception
}
return restoreSuccess;
}
When the method GetFileFromDrive completes, a db corruption shows up on LogCat and all the existing data on the app's datanase file (sqlite db) is gone.
Please help, as I have verified that the drive uploaded sqlite db file is correct and well formed, by downloading the same and opening it up in Sqlite Browser. It's the download from drive that is not working.

[Q] Android BLE Scan Blocks UI Threads

I am working on an Andriod project with Bluetooth LE. While BLE thread was scanning, this thread blocks other threads such as HTTP request and MediaPlayer . Http request is going to timeout or when i play music with meidplayer in app then app is freezing. I get this problem on thees android devices,Samsung Glaxy Tab SM-T700 and Samsung Galaxy TAB SM-T800. But i do not get this problem on Samsung Galaxy TAB SM-T520 device and any android phones.
Code:
BLE Scan Algorithm ` private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(final BluetoothDevice device, final int rssi,
final byte[] scanRecord) {
ac.runOnUiThread(new Runnable() {
@Override
public void run() {
final BluetoothLeDevice deviceLe = new BluetoothLeDevice(
device, rssi, scanRecord, System
.currentTimeMillis());
// mDevices.add(deviceLe);
String rssiString = ac.getString(R.string.formatter_db,
String.valueOf(deviceLe.getRssi()));
if (tempDevice == null) {
tempDevice = deviceLe;
} else {
if (deviceLe.getRunningAverageRssi() > tempDevice
.getRunningAverageRssi()) {
IBeaconDevice newBeacon = new IBeaconDevice(
deviceLe);
IBeaconDevice bestDevice = new IBeaconDevice(
tempDevice);
if (newBeacon.getMajor() != bestDevice.getMajor()
|| newBeacon.getMinor() != bestDevice
.getMinor()) {
tempDevice = deviceLe;
}
}
}
}
// }
});
}
};` Music Play Algorithm . Mediaplayer is initialed before this code ` public void PlayPause() {
Log.e("Çalan", UrlSes);
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
mediaPlayer.reset();
}
try {
mediaPlayer.setDataSource(UrlSes); // setup song from
// http://www.hrupin.com/wp-content/uploads/mp3/testsong_20_sec.mp3
// URL to mediaplayer data
// source
mediaPlayer.prepare(); // you must call this method after setup the
// datasource in setDataSource method. After
// calling prepare() the instance of
// MediaPlayer starts load data from URL to
// internal buffer.
} catch (Exception e) {
e.printStackTrace();
}
mediaFileLengthInMilliseconds = mediaPlayer.getDuration(); // gets the
// song
// length in
// milliseconds
// from URL
if (!mediaPlayer.isPlaying()) {
mediaPlayer.start();
imgPlay.setImageResource(R.drawable.footer_pause);
} else {
mediaPlayer.pause();
imgPlay.setImageResource(R.drawable.footer_play);
}
primarySeekBarProgressUpdater();
}` app freeze on mediplayer.prepare() I use mediplayer.prepareasync() but not plyaed . my web Request code `public JSONObject getJSONInfo(String functionName) {
HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000);
HttpResponse response;
JSONObject json = null;
JSONObject send = new JSONObject();
try {
HttpPost post = new HttpPost(
""+url);
send.put("", variable1);
send.put("", variable1);
send.put("", variable2);
send.put("", variable1);
StringEntity se = new StringEntity(send.toString());
se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE,
"application/json"));
Log.e("test", send.toString());
post.setEntity(se);
response = client.execute(post);
if (response.getStatusLine().getStatusCode() == 200) {
json = new JSONObject(
EntityUtils.toString(response.getEntity()));
}
} catch (Exception e) {
e.printStackTrace();
}
return json;
}
I'think This problem not about code or algorithm. Maybe about setting in device. Please help.

Same problem
Hi, did you find any solution for this ? I stucked on same problem and cant find how to solve this problem. :crying:
Thaks a lot for any advice.

Updating old connection code

I making an app which will display a rss feed and I found some code, but the problem is that a part of it is outdated:
Code:
public String getXmlFromUrl(String url) {
String xml = null;
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// return XML
return xml;
}
The HTTPClient is deprecated and I need to convert it into a HttpURLConnection, but I don't know how.

Pauly69 said:
I making an app which will display a rss feed and I found some code, but the problem is that a part of it is outdated:
Code:
public String getXmlFromUrl(String url) {
String xml = null;
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// return XML
return xml;
}
The HTTPClient is deprecated and I need to convert it into a HttpURLConnection, but I don't know how.
Click to expand...
Click to collapse
You should Google around for some sample code on using HttpUrlConnections; for the most part it's a drop-in replacement. Alternatively, and probably a better solution, use a third-party HTTP solution such as OkHttp. Even HttpUrlConnection is fairly low level by modern standards.