Develop Reference

Start Chrome as Web-App on Android start

i have a quite specific problem. I have realized a Web App on an Android tablet, which will be used on an exhibition (Outform iDisplay). For this reason, the Web App has to start directly after boot. The after-boot thing is no problem (Broadcast with "android.permission.RECEIVE_BOOT_COMPLETED"), but i have a problem to start Chrome as Web-App. For getting the Intent, i have read the Icons in the launcher favorites with this snippet:
//Kitkat, therefore launcher3
url = "content://com.android.launcher3.settings/favorites?Notify=true";
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(Uri.parse(url), null, null, null, null);
if (cursor != null && cursor.moveToFirst())
{
do
{
String ent1 = cursor.getString(0);
String ent2 = cursor.getString(1);
String ent3 = cursor.getString(2); //there is the Intent string
String ent4 = cursor.getString(3);
System.out.println("Test");
String ent5 = cursor.getString(4);
String ent6 = cursor.getString(5);
String ent7 = cursor.getString(6);
String ent8 = cursor.getString(7);
String ent9 = cursor.getString(8);
String ent10 = cursor.getString(9);
String ent11 = cursor.getString(10);
String ent12 = cursor.getString(11);
String ent14 = cursor.getString(13);
String ent15 = cursor.getString(14);
String ent17 = cursor.getString(16);
String ent18 = cursor.getString(17);
String ent19 = cursor.getString(18);
String ent20 = cursor.getString(19);
if(ent2.equals("History Book")) //Get the right intent
{
runAction = ent3;
}
System.out.println(ent3);
} while (cursor.moveToNext());
}
The Intent string contains something like this:
#Intent;action=com.google.android.apps.chrome.webapps.WebappManager.ACTION_START_WEBAPP;package=com.android.chrome;S.org.chromium.chrome.browser.webapp_title=History%20Book;S.org.chromium.chrome.browser.webapp_id=86e362e4-a25d-4142-8a32-c02ffcb176a9;i.org.chromium.content_public.common.orientation=6;S.org.chromium.chrome.browser.webapp_icon=;S.org.chromium.chrome.browser.webapp_mac=3ZaXFbyWnJQaqFFOuUj3OssNz7DrBaaiWfzO2Dd7VIU%3D%0A;S.org.chromium.chrome.browser.webapp_url=http%3A%2F%2F192.168.5.148%2Fstyria%2Fhistorybook%2Findex.html;end
This looks quite good, but how can i start an Intent like this in a small app, which just has the single purpose to start this intent?
Just a small note at the end: I have tried to pack this thing into a webview, but the webview died constantly because of an libc error, so this is no option for me.

Finally i got this thing working. I was on the right way, but some Chrome.apk reverse engineering helped me for the last mile.
I have created a dummy activity with the following code in onCreate:
Search for the right entry on the homescreen, in my case for the AOSP launcher 3:
//Search for the History Book Shortcut on the Homescreen
String url = "";
String runAction="";
final String AUTHORITY = "com.android.launcher3.settings";
final Uri CONTENT_URI = Uri.parse("content://" +
AUTHORITY + "/favorites?notify=true");
final ContentResolver cr = getContentResolver();
Cursor cursor = cr.query(CONTENT_URI,null,null,null,null);
cursor.moveToFirst();
do {
String id = cursor.getString(cursor.getColumnIndex("_id"));
String title = cursor.getString(cursor.getColumnIndex("title"));
String intent = cursor.getString(cursor.getColumnIndex("intent"));
if(title.equals(getResources().getString(R.string.homescreen_link)))
{
runAction = intent;
}
} while (cursor.moveToNext());
At this point, i have hopefully the intent as string. So, parse the string and create a new intent:
Intent intent = new Intent();
intent.setAction("com.google.android.apps.chrome.webapps.WebappManager.ACTION_START_WEBAPP");
intent.setPackage("com.android.chrome");
intent.setClassName("com.android.chrome", "com.google.android.apps.chrome.webapps.WebappManager");
HashMap<String, String> intentVals = getIntentParams(runAction);
intent.putExtra("org.chromium.chrome.browser.webapp_title",intentVals.get("S.org.chromium.chrome.browser.webapp_title"));
intent.putExtra("org.chromium.chrome.browser.webapp_icon",intentVals.get("S.org.chromium.chrome.browser.webapp_icon"));
intent.putExtra("org.chromium.chrome.browser.webapp_id",intentVals.get("S.org.chromium.chrome.browser.webapp_id"));
intent.putExtra("org.chromium.chrome.browser.webapp_url",intentVals.get("S.org.chromium.chrome.browser.webapp_url"));
intent.putExtra("org.chromium.chrome.browser.webapp_mac",intentVals.get("S.org.chromium.chrome.browser.webapp_mac"));
int orientation = 6;
try
{
orientation = Integer.parseInt(intentVals.get("i.org.chromium.content_public.common.orientation"));
}
catch(NumberFormatException _nex)
{
Log.e(TAG, "Wrong format, using default (6)");
}
intent.putExtra("org.chromium.content_public.common.orientation", orientation);
try
{
byte[] abyte0 = Base64.decode(
intentVals.get("S.org.chromium.chrome.browser.webapp_mac"),
0);
System.out.println(new String(abyte0));
}
catch (IllegalArgumentException _iae)
{
Log.e(TAG,
"Wrong webapp_mac: "
+ intentVals
.get("S.org.chromium.chrome.browser.webapp_mac"));
}
startActivity(intent);
finish();
And this function parses the intent parameters out of the intent string:
private HashMap<String, String> getIntentParams(String _runAction)
{
HashMap<String, String> retMap = new HashMap<String, String>();
String[] pairs = _runAction.split(";");
for (int i = 0; i < pairs.length; i++)
{
String[] keyval = pairs[i].split("=");
if(keyval.length==2)
{
String key = keyval[0];
String value = "";
try
{
value = java.net.URLDecoder.decode(keyval[1], "UTF-8");
}
catch (UnsupportedEncodingException _uee)
{
Log.e(TAG, "Unsupported Encoding: " + _uee.getMessage());
}
retMap.put(key, value);
}
}
return retMap;
}
And the strings.xml in res/values:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">WebAppStarter</string>
<string name="homescreen_link">History Book</string>
</resources>
That's it. You can configure the Homescreen link name to search for in strings.xml. When the app finds the string, it parses the intent string and creates a new intent to start Chrome as a Full Screen Activity Web App.

How to add custom header while making a pjsip makecall()?

I need to add one custom header for before making a sip call. please help me.
Thanks in advance.

Finally i got the answer for my question. You should change your make makeSipCall() method.
private boolean makeSipCall(String phoneNumber)
{
if(!created)
return false;
Log.i("MtaAPIImpl", (new StringBuilder("makecall : ")).append(phoneNumber).toString());
phoneNumber = (new StringBuilder("<sip:")).append(phoneNumber).append("#").append(sipServer).append(">").toString();
byte userData[] = new byte[1];
int callId[] = new int[1];
pjsua_call_setting cs = new pjsua_call_setting();
pjsua.call_setting_default(cs);
cs.setVid_cnt(0L);
cs.setAud_cnt(1L);
cs.setFlag(0L);
pjsua_msg_data msgData = new pjsua_msg_data();
pjsua.msg_data_init(msgData);
pj_pool_t pool = pjsua.pool_create("call_tmp", 512L, 512L);
pjsua.csipsimple_init_acc_msg_data(pool, 1, msgData);
pj_str_t uri = pjsua.pj_str_copy(phoneNumber);
//Here adding headers adding through bundel.
Bundle extra_header = new Bundle();
final Bundle b = new Bundle();
extra_header.putString("header-Name", "Header-Value");
b.putBundle(SipCallSession.OPT_CALL_EXTRA_HEADERS, extra_header);
Bundle extraHeaders = b.getBundle(SipCallSession.OPT_CALL_EXTRA_HEADERS);
for (String key : extraHeaders.keySet()) {
try {
String value = extraHeaders.getString(key.toString());
if (!TextUtils.isEmpty(value)) {
int res = pjsua.csipsimple_msg_data_add_string_hdr(pool, msgData,pjsua.pj_str_copy(key), pjsua.pj_str_copy(value));
if (res == pjsuaConstants.PJ_SUCCESS) {
Log.e(THIS_FILE, "Failed to add Xtra hdr (" + key + " : "+ value + ") probably not X- header");
}
}
} catch (Exception e) {
Log.e(THIS_FILE, "Invalid header value for key : " + key);
}
}
int status = pjsua.call_make_call(1, uri, cs, userData, msgData, callId);
pjsua.pj_pool_release(pool);
return status == pjsuaConstants.PJ_SUCCESS;
}

How to get Metadata of an object retrieved from amazon S3 in android?

I am retrieving an object from amazon s3.How to get metadata of retrieved object in android? From the metadata, i want to find out whether that object is image or Non-image (like pdf, csv, ...)
Thanks for any help.
I am using the following code for getting list of names under a folder.
AmazonS3Client s3Client;
s3Client = new AmazonS3Client(new BasicAWSCredentials(
Constants.ACCESS_KEY_ID, Constants.SECRET_KEY));
ObjectListing objListOfPath = s3Client.listObjects(
Constants.getPictureBucket(), path);
List<S3ObjectSummary> keyListOfObjectSummaries = objListOfPath
.getObjectSummaries();
ObjectListing next = s3Client.listNextBatchOfObjects(objListOfPath);
keyListOfObjectSummaries.addAll(next.getObjectSummaries());
System.out.println("keyListOfObjectSummaries size() "
+ keyListOfObjectSummaries.size());
ArrayList<String> arrListImageName = new ArrayList<String>();
if (keyListOfObjectSummaries.size() > 0) {
for (int i = 0; i < keyListOfObjectSummaries.size(); i++) {
String imagePath = keyListOfObjectSummaries.get(i).getKey();
arrListImageName.add(strImageName);
}
for (int i = 0; i < arrListImageName.size(); i++) {
System.out.println("Index " + i + " image Name "
+ arrListImageName.get(i));
String strReceiptImageName = arrListImageName.get(i);
String strReceiptNameExtension = extractReceiptNameExtension(arrListImageName.get(i));
S3Object objectReceiptFromAmazonS3 = s3Client.getObject(
Constants.PICTURE_BUCKET, keyListOfObjectSummaries
.get(i).getKey());
InputStream inputStreamReceiptObject = objectReceiptFromAmazonS3
.getObjectContent();
SOLUTION:
System.out.println("CONTENT TYPE " +objectReceiptFromAmazonS3.getObjectMetadata().getContentType());
Thanks to Harshit and sanket !

This has worked for me to download a file hosted in S3 from a simple servlet.
private static final int BYTES_DOWNLOAD = 1024;
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String key = request.getParameter("key");
HttpSession session = request.getSession();
String bucketname = (String) session.getAttribute("BUCKETNAME");
AmazonS3 s3 = new AmazonS3Client(Constants.credentials);
Region usWest2 = Region.getRegion(Regions.US_WEST_2);
s3.setRegion(usWest2);
S3Object object = s3.getObject(new GetObjectRequest(bucketname, key));
response.setContentType(object.getObjectMetadata().getContentType());
response.setHeader("Content-Disposition","attachment;filename="+object.getKey());
InputStream is = object.getObjectContent();int read=0;
byte[] bytes = new byte[BYTES_DOWNLOAD];
OutputStream os = response.getOutputStream();
while((read = is.read(bytes))!= -1){
os.write(bytes, 0, read);
}
os.flush();
os.close();
}

use this couple of lines :
ObjectMetadata metaData = new ObjectMetadata();
metaData.addUserMetadata("key", key of your file);
System.out.println("Content type is========"+metaData.getContentType());
this might be help you..

Updating a column in database of the selected user ID IN ANDROID

Can somebody help me about this matter? I have a listview with checkbox, every time the user tick the checkbox, all the selected user ID was inserted into a arraylist. Then if the button Export was clicked, all the column "Mark" in the database should be updated from "Not send" to "sent". I know that by this code the database will be updated:
public void updateEmailmark(String consumerId)
{
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(Constants.CONSUMER_EMAILMARK, "Sent");
db.update(Constants.DATABASE_TABLE_CONSUMER, contentValues, Constants.CONSUMER_ID + "=?",new String[]{consumerId});
db.close();
}
but my problem is I don't know how to update that column when the user selected many UserID to export. I only knew that I need to use a for loop but I don't know how. Thank for anyone who will help me. Here's my other code.
btn_Export.setOnClickListener(new OnClickListener()
{
public void onClick(View v){
arraylistSelectedConsumerIds = simpleAdapterConsumerData.getArrayListConsumerId();
arraylistSelectedConsumer = simpleAdapterConsumerData.getArrayListConsumer();
if (!arraylistSelectedConsumerIds.toString().equals("[]") && !arraylistSelectedConsumer.toString().equals("[]"))
{
boolean hasSDCard = false;
boolean sdCardIsWriteable = true;
String sdCardState = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(sdCardState))
hasSDCard = true;
else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(sdCardState))
sdCardIsWriteable = true;
if (hasSDCard == true && sdCardIsWriteable == true){
new AsyncCreateBackup().execute();
String date = String.valueOf(calendar.get(Calendar.MONTH)+1)+"-"+String.valueOf(calendar.get(Calendar.DATE))+"-"+String.valueOf(calendar.get(Calendar.YEAR));
int fileCounter = 1;
File sdcard = Environment.getExternalStorageDirectory();
File dir = new File (sdcard.getAbsolutePath() + "/CompanyCares/export/");
if (dir.exists()){
File[]dirs = dir.listFiles();
try{
for(File fileFolder: dirs){
if(fileFolder.isDirectory() && fileFolder.getName().contains("export_"+date)){
fileCounter++;
}
}
} catch (Exception e){
e.printStackTrace();
}
}
consumerData = new StringBuilder();
File personFile;
time = String.valueOf(calendar.get(Calendar.HOUR_OF_DAY))+String.valueOf(calendar.get(Calendar.MINUTE))+String.valueOf(calendar.get(Calendar.SECOND));
personFile = createCSV("Person_Table_"+date+"_"+time, Constants.COLUMN_STRING_PERSON_TABLE, getConsumersDetails(arraylistSelectedConsumerIds), fileCounter, false);
createEmailWithAttachments(personFile);
arrayListExportedConsumerId.addAll(arraylistSelectedConsumerIds);
arrayListExportedConsumer.addAll(arraylistSelectedConsumer);
exportedConsumerId = new HashSet<String>();
exportedConsumer = new HashSet<String>();
exportedConsumerId.addAll(arrayListExportedConsumerId);
exportedConsumer.addAll(arrayListExportedConsumer);
sharedPreferencesEditor.putStringSet(Constants.SHARED_PREFERENCES_EXPORTED_CONSUMER_ID, exportedConsumerId);
sharedPreferencesEditor.putStringSet(Constants.SHARED_PREFERENCES_EXPORTED_CONSUMER, exportedConsumer);
sharedPreferencesEditor.commit();
}else{
Toast.makeText(AdminActivity.this, getString(R.string.error_sdcard), Toast.LENGTH_SHORT).show();
}
}else{
Toast.makeText(AdminActivity.this, getString(R.string.error_select), Toast.LENGTH_LONG).show();
}
}
});

reading sms records from database android

I have over 3000 sms on my device. I'm trying to read all messages in the database. I am using this query:
Cursor cur1 = c.getContentResolver().query(Uri.parse("content://sms/"), null, null, null, null);
cur1.getCount() returns all 3000 sms, but when I parse it through a loop it only runs through 400 to 500.
Cursor cur1 = c.getContentResolver().query(Uri.parse("content://sms/"), null, null, null, null);
int size = cur1.getCount();
if(size > 0)
{
sms = new SMS[size];
//int i = 0;
for(int i = 0 ; i < size ; i++)
{
cur1.moveToNext();
ContactInfo p = new ContactInfo();
String content = cur1.getString(cur1.getColumnIndex("body"));
String number = cur1.getString(cur1.getColumnIndex("address"));
long date = cur1.getLong(cur1.getColumnIndex("date"));
String person = cur1.getString(cur1.getColumnIndex("person"));
String protocol = cur1.getString(cur1.getColumnIndex("protocol"));
String name = p.getName(number, c);
String type = null;
Calendar cal=Calendar.getInstance();
cal.clear();
cal.setTimeInMillis(date);
String date_time=String.format("%1$te %1$tB %1$tY,%1$tI:%1$tM:%1$tS %1$Tp",cal);
Log.i("INFO", content+" "+i);
sms[i] = new SMS(type , name , number , date_time , content );
}
}
After 400-500 iterations logcat prints
09-19 20:28:31.148: E/liblog(3153): failed to call dumpstate
09-19 20:28:31.179: I/ActivityManager(3153): Process com.arslan (pid 1766) has died.

Many other processes are running on device and due to this long process of reading 3000 messages it takes a lot of continuous CPU time that's why process killed. When I tried to read it through thread it works fine.
final Cursor cur1 = c.getContentResolver().query(Uri.parse("content://sms/"), null, null, null, "date ASC");
final int size = cur1.getCount();
final int sleeptimer = size;
final SMS [] sms = new SMS[size];
Thread myThread = new Thread()
{
public void run()
{
try
{
int currentwait = 0;
int j=0;
while(currentwait < sleeptimer)
{
sleep(200);
currentwait+=200;
for(int i = 0 ; i < 200 ; i++)
{
if(!cur1.moveToNext())
{
break;
}
ContactInfo p = new ContactInfo();
String content = cur1.getString(cur1.getColumnIndex("body"));
String number = cur1.getString(cur1.getColumnIndex("address"));
long date = cur1.getLong(cur1.getColumnIndex("date"));
String protocol = cur1.getString(cur1.getColumnIndex("protocol"));
String name = p.getName(number, c);
String type = null;
Calendar cal=Calendar.getInstance();
cal.clear();
cal.setTimeInMillis(date);
String date_time=String.format("%1$te %1$tB %1$tY,%1$tI:%1$tM:%1$tS %1$Tp",cal);
Log.i("INFO", content+" "+j);
sms[j] = new SMS(type , name , number , date_time , content );
j++;
}
}
}
catch(Exception e)
{
}
finally{
}
}
};
myThread.start();