Develop Reference

How to get signal strength characteristics of 5G NSA network from CellSignalStrengthLte

As Android developer reference states, TelephonyManager returns CellInfoNr only for 5G SA networks and CellInfoLte for 5G NSA networks. I need to get signal strength information for NSA networks, but can't find the information on how to get it from CellSignalStrengthLte.
5G, as far as I understand, uses Synchronization Signal and Channel State Information instead of Cell-Specific Reference Signal as with 4G, and thus the usual RSRP, RSRQ, and RSSI information are pretty useless with 5G networks.
Have I understood this wrong so that these metrics are actually relevant in NSA network, or how can I get the relevant metrics from the CellSignalStrengthLte object?

Maybe could help you call TelephoneManager. You can see below all types.
Use a funciton like this:
fun getNetworkInfo() : Int {
val networkInfo = connectivityManager.activeNetworkInfo
if (networkInfo.type == ConnectivityManager.TYPE_MOBILE) {
return networkInfo.subtype
} else -1
}
than parse the Int to check which type of connection is.
Connection types:
/*
* When adding a network type to the list below, make sure to add the correct icon to
* MobileSignalController.mapIconSets() as well as NETWORK_TYPES
* Do not add negative types.
*/
/** Network type is unknown */
public static final int NETWORK_TYPE_UNKNOWN = TelephonyProtoEnums.NETWORK_TYPE_UNKNOWN; // = 0.
/** Current network is GPRS */
public static final int NETWORK_TYPE_GPRS = TelephonyProtoEnums.NETWORK_TYPE_GPRS; // = 1.
/** Current network is EDGE */
public static final int NETWORK_TYPE_EDGE = TelephonyProtoEnums.NETWORK_TYPE_EDGE; // = 2.
/** Current network is UMTS */
public static final int NETWORK_TYPE_UMTS = TelephonyProtoEnums.NETWORK_TYPE_UMTS; // = 3.
/** Current network is CDMA: Either IS95A or IS95B*/
public static final int NETWORK_TYPE_CDMA = TelephonyProtoEnums.NETWORK_TYPE_CDMA; // = 4.
/** Current network is EVDO revision 0*/
public static final int NETWORK_TYPE_EVDO_0 = TelephonyProtoEnums.NETWORK_TYPE_EVDO_0; // = 5.
/** Current network is EVDO revision A*/
public static final int NETWORK_TYPE_EVDO_A = TelephonyProtoEnums.NETWORK_TYPE_EVDO_A; // = 6.
/** Current network is 1xRTT*/
public static final int NETWORK_TYPE_1xRTT = TelephonyProtoEnums.NETWORK_TYPE_1XRTT; // = 7.
/** Current network is HSDPA */
public static final int NETWORK_TYPE_HSDPA = TelephonyProtoEnums.NETWORK_TYPE_HSDPA; // = 8.
/** Current network is HSUPA */
public static final int NETWORK_TYPE_HSUPA = TelephonyProtoEnums.NETWORK_TYPE_HSUPA; // = 9.
/** Current network is HSPA */
public static final int NETWORK_TYPE_HSPA = TelephonyProtoEnums.NETWORK_TYPE_HSPA; // = 10.
/** Current network is iDen */
public static final int NETWORK_TYPE_IDEN = TelephonyProtoEnums.NETWORK_TYPE_IDEN; // = 11.
/** Current network is EVDO revision B*/
public static final int NETWORK_TYPE_EVDO_B = TelephonyProtoEnums.NETWORK_TYPE_EVDO_B; // = 12.
/** Current network is LTE */
public static final int NETWORK_TYPE_LTE = TelephonyProtoEnums.NETWORK_TYPE_LTE; // = 13.
/** Current network is eHRPD */
public static final int NETWORK_TYPE_EHRPD = TelephonyProtoEnums.NETWORK_TYPE_EHRPD; // = 14.
/** Current network is HSPA+ */
public static final int NETWORK_TYPE_HSPAP = TelephonyProtoEnums.NETWORK_TYPE_HSPAP; // = 15.
/** Current network is GSM */
public static final int NETWORK_TYPE_GSM = TelephonyProtoEnums.NETWORK_TYPE_GSM; // = 16.
/** Current network is TD_SCDMA */
public static final int NETWORK_TYPE_TD_SCDMA =
TelephonyProtoEnums.NETWORK_TYPE_TD_SCDMA; // = 17.
/** Current network is IWLAN */
public static final int NETWORK_TYPE_IWLAN = TelephonyProtoEnums.NETWORK_TYPE_IWLAN; // = 18.
/** Current network is LTE_CA {#hide} */
#UnsupportedAppUsage
public static final int NETWORK_TYPE_LTE_CA = TelephonyProtoEnums.NETWORK_TYPE_LTE_CA; // = 19.
/** Current network is NR(New Radio) 5G. */
public static final int NETWORK_TYPE_NR = TelephonyProtoEnums.NETWORK_TYPE_NR; // 20.

Can we use gson model with realm? When I'm trying it's showing a build time error

When I'm try to build or run project at time showing me error, GSON model means Which I am going to use in webservice response and I'm using realm database FirstTime so
My Model Class
InstaSave.class
package model;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
import io.realm.RealmObject;
// I extend realm in my gson model
public class InstaSave extends RealmObject {
#SerializedName("provider_url")
#Expose
private String providerUrl;
#SerializedName("media_id")
#Expose
private String mediaId;
#SerializedName("author_name")
#Expose
private String authorName;
#SerializedName("height")
#Expose
private Object height;
#SerializedName("thumbnail_url")
#Expose
private String thumbnailUrl;
#SerializedName("thumbnail_width")
#Expose
private Integer thumbnailWidth;
#SerializedName("thumbnail_height")
#Expose
private Integer thumbnailHeight;
#SerializedName("provider_name")
#Expose
private String providerName;
#SerializedName("title")
#Expose
private String title;
#SerializedName("html")
#Expose
private String html;
#SerializedName("width")
#Expose
private Integer width;
#SerializedName("version")
#Expose
private String version;
#SerializedName("author_url")
#Expose
private String authorUrl;
#SerializedName("author_id")
#Expose
private Double authorId;
#SerializedName("type")
#Expose
private String type;
/**
*
* #return
* The providerUrl
*/
public String getProviderUrl() {
return providerUrl;
}
/**
*
* #param providerUrl
* The provider_url
*/
public void setProviderUrl(String providerUrl) {
this.providerUrl = providerUrl;
}
/**
*
* #return
* The mediaId
*/
public String getMediaId() {
return mediaId;
}
/**
*
* #param mediaId
* The media_id
*/
public void setMediaId(String mediaId) {
this.mediaId = mediaId;
}
/**
*
* #return
* The authorName
*/
public String getAuthorName() {
return authorName;
}
/**
*
* #param authorName
* The author_name
*/
public void setAuthorName(String authorName) {
this.authorName = authorName;
}
/**
*
* #return
* The height
*/
public Object getHeight() {
return height;
}
/**
*
* #param height
* The height
*/
public void setHeight(Object height) {
this.height = height;
}
/**
*
* #return
* The thumbnailUrl
*/
public String getThumbnailUrl() {
return thumbnailUrl;
}
/**
*
* #param thumbnailUrl
* The thumbnail_url
*/
public void setThumbnailUrl(String thumbnailUrl) {
this.thumbnailUrl = thumbnailUrl;
}
/**
*
* #return
* The thumbnailWidth
*/
public Integer getThumbnailWidth() {
return thumbnailWidth;
}
/**
*
* #param thumbnailWidth
* The thumbnail_width
*/
public void setThumbnailWidth(Integer thumbnailWidth) {
this.thumbnailWidth = thumbnailWidth;
}
/**
*
* #return
* The thumbnailHeight
*/
public Integer getThumbnailHeight() {
return thumbnailHeight;
}
/**
*
* #param thumbnailHeight
* The thumbnail_height
*/
public void setThumbnailHeight(Integer thumbnailHeight) {
this.thumbnailHeight = thumbnailHeight;
}
/**
*
* #return
* The providerName
*/
public String getProviderName() {
return providerName;
}
/**
*
* #param providerName
* The provider_name
*/
public void setProviderName(String providerName) {
this.providerName = providerName;
}
/**
*
* #return
* The title
*/
public String getTitle() {
return title;
}
/**
*
* #param title
* The title
*/
public void setTitle(String title) {
this.title = title;
}
/**
*
* #return
* The html
*/
public String getHtml() {
return html;
}
/**
*
* #param html
* The html
*/
public void setHtml(String html) {
this.html = html;
}
/**
*
* #return
* The width
*/
public Integer getWidth() {
return width;
}
/**
*
* #param width
* The width
*/
public void setWidth(Integer width) {
this.width = width;
}
/**
*
* #return
* The version
*/
public String getVersion() {
return version;
}
/**
*
* #param version
* The version
*/
public void setVersion(String version) {
this.version = version;
}
/**
*
* #return
* The authorUrl
*/
public String getAuthorUrl() {
return authorUrl;
}
/**
*
* #param authorUrl
* The author_url
*/
public void setAuthorUrl(String authorUrl) {
this.authorUrl = authorUrl;
}
/**
*
* #return
* The authorId
*/
public Double getAuthorId() {
return authorId;
}
/**
*
* #param authorId
* The author_id
*/
public void setAuthorId(Double authorId) {
this.authorId = authorId;
}
/**
*
* #return
* The type
*/
public String getType() {
return type;
}
/**
*
* #param type
* The type
*/
public void setType(String type) {
this.type = type;
}
}
Error
1) D:\Android_Studio_Task\InstaSave\app\src\main\java\model\InstaSave.java
-Error:(10, 8) error: Type java.lang.Object of field height is not supported
2) Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

The error states, that you cannot have an Object type as a field
Quoted from https://realm.io/docs/java/latest/#field-types :
Realm supports the following field types: boolean, byte, short, int, long, float, double, String, Date and byte[]. The integer types byte, short, int, and long are all mapped to the same type (long actually) within Realm. Moreover, subclasses of RealmObject and RealmList<? extends RealmObject> are supported to model relationships.
The boxed types Boolean, Byte, Short, Integer, Long, Float and Double can also be used in model classes. Using these types, it is possible to set the value of a field to null.
You need to declare the field as one of these types, however if you can serialize/deserialize a type that is not allowed using permitted ones, then you can do this in getters/setters and expose an API with desired object type to the user.
You can also use #Ignore annotation, so that this particular field is not taken into an account and you can populate it yourself upon object creation, but it is a far less secure way as you need to keep in mind this fact every time you work with it.

you might need to create separate class for serialized models and realm models, and then map them.

How i can perform barcode scanner in offline mode with using in camera as it can scan barcode and return the number to me? [duplicate]

This question already has answers here:
How to use Zxing in android [duplicate]
(3 answers)
Closed 8 years ago.
How i can perform barcode scanner in offline mode with using in camera as it can scan barcode and return the number to me?

You can do that BY using Zxing project that provides a standalone Barcode reader application which (via Android's intent mechanism ) can be called by other applications who wish to integrate Barcode scanning.
The Codes for Zxing project are:
IntentIntegrator class:
/*
* Copyright 2009 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.zxing.integration.android;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
/**
* <p>A utility class which helps ease integration with Barcode Scanner via {#link Intent}s. This is a simple
* way to invoke barcode scanning and receive the result, without any need to integrate, modify, or learn the
* project's source code.</p>
*
* <h2>Initiating a barcode scan</h2>
*
* <p>To integrate, create an instance of {#code IntentIntegrator} and call {#link #initiateScan()} and wait
* for the result in your app.</p>
*
* <p>It does require that the Barcode Scanner (or work-alike) application is installed. The
* {#link #initiateScan()} method will prompt the user to download the application, if needed.</p>
*
* <p>There are a few steps to using this integration. First, your {#link Activity} must implement
* the method {#link Activity#onActivityResult(int, int, Intent)} and include a line of code like this:</p>
*
* <pre>{#code
* public void onActivityResult(int requestCode, int resultCode, Intent intent) {
* IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
* if (scanResult != null) {
* // handle scan result
* }
* // else continue with any other code you need in the method
* ...
* }
* }</pre>
*
* <p>This is where you will handle a scan result.</p>
*
* <p>Second, just call this in response to a user action somewhere to begin the scan process:</p>
*
* <pre>{#code
* IntentIntegrator integrator = new IntentIntegrator(yourActivity);
* integrator.initiateScan();
* }</pre>
*
* <p>Note that {#link #initiateScan()} returns an {#link AlertDialog} which is non-null if the
* user was prompted to download the application. This lets the calling app potentially manage the dialog.
* In particular, ideally, the app dismisses the dialog if it's still active in its {#link Activity#onPause()}
* method.</p>
*
* <p>You can use {#link #setTitle(String)} to customize the title of this download prompt dialog (or, use
* {#link #setTitleByID(int)} to set the title by string resource ID.) Likewise, the prompt message, and
* yes/no button labels can be changed.</p>
*
* <p>Finally, you can use {#link #addExtra(String, Object)} to add more parameters to the Intent used
* to invoke the scanner. This can be used to set additional options not directly exposed by this
* simplified API.</p>
*
* <p>By default, this will only allow applications that are known to respond to this intent correctly
* do so. The apps that are allowed to response can be set with {#link #setTargetApplications(List)}.
* For example, set to {#link #TARGET_BARCODE_SCANNER_ONLY} to only target the Barcode Scanner app itself.</p>
*
* <h2>Sharing text via barcode</h2>
*
* <p>To share text, encoded as a QR Code on-screen, similarly, see {#link #shareText(CharSequence)}.</p>
*
* <p>Some code, particularly download integration, was contributed from the Anobiit application.</p>
*
* <h2>Enabling experimental barcode formats</h2>
*
* <p>Some formats are not enabled by default even when scanning with {#link #ALL_CODE_TYPES}, such as
* PDF417. Use {#link #initiateScan(java.util.Collection)} with
* a collection containing the names of formats to scan for explicitly, like "PDF_417", to use such
* formats.</p>
*
* #author Sean Owen
* #author Fred Lin
* #author Isaac Potoczny-Jones
* #author Brad Drehmer
* #author gcstang
*/
public class IntentIntegrator {
public static final int REQUEST_CODE = 0x0000c0de; // Only use bottom 16 bits
private static final String TAG = IntentIntegrator.class.getSimpleName();
public static final String DEFAULT_TITLE = "Install Barcode Scanner?";
public static final String DEFAULT_MESSAGE =
"This application requires Barcode Scanner. Would you like to install it?";
public static final String DEFAULT_YES = "Yes";
public static final String DEFAULT_NO = "No";
private static final String BS_PACKAGE = "com.google.zxing.client.android";
private static final String BSPLUS_PACKAGE = "com.srowen.bs.android";
// supported barcode formats
public static final Collection<String> PRODUCT_CODE_TYPES = list("UPC_A", "UPC_E", "EAN_8", "EAN_13", "RSS_14");
public static final Collection<String> ONE_D_CODE_TYPES =
list("UPC_A", "UPC_E", "EAN_8", "EAN_13", "CODE_39", "CODE_93", "CODE_128",
"ITF", "RSS_14", "RSS_EXPANDED");
public static final Collection<String> QR_CODE_TYPES = Collections.singleton("QR_CODE");
public static final Collection<String> DATA_MATRIX_TYPES = Collections.singleton("DATA_MATRIX");
public static final Collection<String> ALL_CODE_TYPES = null;
public static final List<String> TARGET_BARCODE_SCANNER_ONLY = Collections.singletonList(BS_PACKAGE);
public static final List<String> TARGET_ALL_KNOWN = list(
BS_PACKAGE, // Barcode Scanner
BSPLUS_PACKAGE, // Barcode Scanner+
BSPLUS_PACKAGE + ".simple" // Barcode Scanner+ Simple
// What else supports this intent?
);
private final Activity activity;
private String title;
private String message;
private String buttonYes;
private String buttonNo;
private List<String> targetApplications;
private final Map<String,Object> moreExtras;
public IntentIntegrator(Activity activity) {
this.activity = activity;
title = DEFAULT_TITLE;
message = DEFAULT_MESSAGE;
buttonYes = DEFAULT_YES;
buttonNo = DEFAULT_NO;
targetApplications = TARGET_ALL_KNOWN;
moreExtras = new HashMap<String,Object>(3);
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public void setTitleByID(int titleID) {
title = activity.getString(titleID);
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public void setMessageByID(int messageID) {
message = activity.getString(messageID);
}
public String getButtonYes() {
return buttonYes;
}
public void setButtonYes(String buttonYes) {
this.buttonYes = buttonYes;
}
public void setButtonYesByID(int buttonYesID) {
buttonYes = activity.getString(buttonYesID);
}
public String getButtonNo() {
return buttonNo;
}
public void setButtonNo(String buttonNo) {
this.buttonNo = buttonNo;
}
public void setButtonNoByID(int buttonNoID) {
buttonNo = activity.getString(buttonNoID);
}
public Collection<String> getTargetApplications() {
return targetApplications;
}
public final void setTargetApplications(List<String> targetApplications) {
if (targetApplications.isEmpty()) {
throw new IllegalArgumentException("No target applications");
}
this.targetApplications = targetApplications;
}
public void setSingleTargetApplication(String targetApplication) {
this.targetApplications = Collections.singletonList(targetApplication);
}
public Map<String,?> getMoreExtras() {
return moreExtras;
}
public final void addExtra(String key, Object value) {
moreExtras.put(key, value);
}
/**
* Initiates a scan for all known barcode types.
*/
public final AlertDialog initiateScan() {
return initiateScan(ALL_CODE_TYPES);
}
/**
* Initiates a scan only for a certain set of barcode types, given as strings corresponding
* to their names in ZXing's {#code BarcodeFormat} class like "UPC_A". You can supply constants
* like {#link #PRODUCT_CODE_TYPES} for example.
*
* #return the {#link AlertDialog} that was shown to the user prompting them to download the app
* if a prompt was needed, or null otherwise
*/
public final AlertDialog initiateScan(Collection<String> desiredBarcodeFormats) {
Intent intentScan = new Intent(BS_PACKAGE + ".SCAN");
intentScan.addCategory(Intent.CATEGORY_DEFAULT);
// check which types of codes to scan for
if (desiredBarcodeFormats != null) {
// set the desired barcode types
StringBuilder joinedByComma = new StringBuilder();
for (String format : desiredBarcodeFormats) {
if (joinedByComma.length() > 0) {
joinedByComma.append(',');
}
joinedByComma.append(format);
}
intentScan.putExtra("SCAN_FORMATS", joinedByComma.toString());
}
String targetAppPackage = findTargetAppPackage(intentScan);
if (targetAppPackage == null) {
return showDownloadDialog();
}
intentScan.setPackage(targetAppPackage);
intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
attachMoreExtras(intentScan);
startActivityForResult(intentScan, REQUEST_CODE);
return null;
}
/**
* Start an activity.<br>
* This method is defined to allow different methods of activity starting for
* newer versions of Android and for compatibility library.
*
* #param intent Intent to start.
* #param code Request code for the activity
* #see android.app.Activity#startActivityForResult(Intent, int)
* #see android.app.Fragment#startActivityForResult(Intent, int)
*/
protected void startActivityForResult(Intent intent, int code) {
activity.startActivityForResult(intent, code);
}
private String findTargetAppPackage(Intent intent) {
PackageManager pm = activity.getPackageManager();
List<ResolveInfo> availableApps = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
if (availableApps != null) {
for (ResolveInfo availableApp : availableApps) {
String packageName = availableApp.activityInfo.packageName;
if (targetApplications.contains(packageName)) {
return packageName;
}
}
}
return null;
}
private AlertDialog showDownloadDialog() {
AlertDialog.Builder downloadDialog = new AlertDialog.Builder(activity);
downloadDialog.setTitle(title);
downloadDialog.setMessage(message);
downloadDialog.setPositiveButton(buttonYes, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
String packageName = targetApplications.get(0);
Uri uri = Uri.parse("market://details?id=" + packageName);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
try {
activity.startActivity(intent);
} catch (ActivityNotFoundException anfe) {
// Hmm, market is not installed
Log.w(TAG, "Google Play is not installed; cannot install " + packageName);
}
}
});
downloadDialog.setNegativeButton(buttonNo, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {}
});
return downloadDialog.show();
}
/**
* <p>Call this from your {#link Activity}'s
* {#link Activity#onActivityResult(int, int, Intent)} method.</p>
*
* #return null if the event handled here was not related to this class, or
* else an {#link IntentResult} containing the result of the scan. If the user cancelled scanning,
* the fields will be null.
*/
public static IntentResult parseActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == REQUEST_CODE) {
if (resultCode == Activity.RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String formatName = intent.getStringExtra("SCAN_RESULT_FORMAT");
byte[] rawBytes = intent.getByteArrayExtra("SCAN_RESULT_BYTES");
int intentOrientation = intent.getIntExtra("SCAN_RESULT_ORIENTATION", Integer.MIN_VALUE);
Integer orientation = intentOrientation == Integer.MIN_VALUE ? null : intentOrientation;
String errorCorrectionLevel = intent.getStringExtra("SCAN_RESULT_ERROR_CORRECTION_LEVEL");
return new IntentResult(contents,
formatName,
rawBytes,
orientation,
errorCorrectionLevel);
}
return new IntentResult();
}
return null;
}
/**
* Defaults to type "TEXT_TYPE".
* #see #shareText(CharSequence, CharSequence)
*/
public final AlertDialog shareText(CharSequence text) {
return shareText(text, "TEXT_TYPE");
}
/**
* Shares the given text by encoding it as a barcode, such that another user can
* scan the text off the screen of the device.
*
* #param text the text string to encode as a barcode
* #param type type of data to encode. See {#code com.google.zxing.client.android.Contents.Type} constants.
* #return the {#link AlertDialog} that was shown to the user prompting them to download the app
* if a prompt was needed, or null otherwise
*/
public final AlertDialog shareText(CharSequence text, CharSequence type) {
Intent intent = new Intent();
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setAction(BS_PACKAGE + ".ENCODE");
intent.putExtra("ENCODE_TYPE", type);
intent.putExtra("ENCODE_DATA", text);
String targetAppPackage = findTargetAppPackage(intent);
if (targetAppPackage == null) {
return showDownloadDialog();
}
intent.setPackage(targetAppPackage);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
attachMoreExtras(intent);
activity.startActivity(intent);
return null;
}
private static List<String> list(String... values) {
return Collections.unmodifiableList(Arrays.asList(values));
}
private void attachMoreExtras(Intent intent) {
for (Map.Entry<String,Object> entry : moreExtras.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
// Kind of hacky
if (value instanceof Integer) {
intent.putExtra(key, (Integer) value);
} else if (value instanceof Long) {
intent.putExtra(key, (Long) value);
} else if (value instanceof Boolean) {
intent.putExtra(key, (Boolean) value);
} else if (value instanceof Double) {
intent.putExtra(key, (Double) value);
} else if (value instanceof Float) {
intent.putExtra(key, (Float) value);
} else if (value instanceof Bundle) {
intent.putExtra(key, (Bundle) value);
} else {
intent.putExtra(key, value.toString());
}
}
}
}
IntentResult class:
/*
* Copyright 2009 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.zxing.integration.android;
/**
* <p>Encapsulates the result of a barcode scan invoked through {#link IntentIntegrator}.</p>
*
* #author Sean Owen
*/
public final class IntentResult {
private final String contents;
private final String formatName;
private final byte[] rawBytes;
private final Integer orientation;
private final String errorCorrectionLevel;
IntentResult() {
this(null, null, null, null, null);
}
IntentResult(String contents,
String formatName,
byte[] rawBytes,
Integer orientation,
String errorCorrectionLevel) {
this.contents = contents;
this.formatName = formatName;
this.rawBytes = rawBytes;
this.orientation = orientation;
this.errorCorrectionLevel = errorCorrectionLevel;
}
/**
* #return raw content of barcode
*/
public String getContents() {
return contents;
}
/**
* #return name of format, like "QR_CODE", "UPC_A". See {#code BarcodeFormat} for more format names.
*/
public String getFormatName() {
return formatName;
}
/**
* #return raw bytes of the barcode content, if applicable, or null otherwise
*/
public byte[] getRawBytes() {
return rawBytes;
}
/**
* #return rotation of the image, in degrees, which resulted in a successful scan. May be null.
*/
public Integer getOrientation() {
return orientation;
}
/**
* #return name of the error correction level used in the barcode, if applicable
*/
public String getErrorCorrectionLevel() {
return errorCorrectionLevel;
}
#Override
public String toString() {
StringBuilder dialogText = new StringBuilder(100);
dialogText.append("Format: ").append(formatName).append('\n');
dialogText.append("Contents: ").append(contents).append('\n');
int rawBytesLength = rawBytes == null ? 0 : rawBytes.length;
dialogText.append("Raw bytes: (").append(rawBytesLength).append(" bytes)\n");
dialogText.append("Orientation: ").append(orientation).append('\n');
dialogText.append("EC level: ").append(errorCorrectionLevel).append('\n');
return dialogText.toString();
}
}
To call Zxing in desired Activity:
//instantiate ZXing integration class
IntentIntegrator scanIntegrator = new IntentIntegrator(this);
//start scanning
scanIntegrator.initiateScan();
To get scanning result by:
if (scanningResult != null) {
//get content from Intent Result
String scanContent = scanningResult.getContents();
//get format name of data scanned
String scanFormat = scanningResult.getFormatName();
}
For more you can see This zxing
hope this help!

Have a look at the Zxing library:
https://github.com/zxing/zxing
There is also a embedded version:
https://github.com/journeyapps/zxing-android-embedded
With add the scanner activity to your Manifest:
<activity
android:name="com.google.zxing.client.android.CaptureActivity"
android:configChanges="orientation|keyboardHidden"
android:windowSoftInputMode="stateAlwaysHidden" >
<intent-filter>
<action android:name="com.google.zxing.client.android.SCAN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
and open it with
Intent intent = new Intent(Intents.Scan.ACTION);
intent.setPackage(this.getPackageName());
//Add any optional extras to pass
intent.putExtra(Intents.Scan.MODE, Intents.Scan.ONE_D_MODE);
//Launch
startActivityForResult(intent, SCAN_REQUEST_CODE);
and grab the results with
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// Check which request we're responding to
if (requestCode == SCAN_REQUEST_CODE) {
// Make sure the request was successful
if (resultCode == RESULT_OK) {
String result = data.getStringExtra(Intents.Scan.RESULT);
...
}
}
}

BLE tempature sensor service detection

I have source code which is able to scan for BLE devies which are temp sensors, but when scanning it will not show any other BLE decies. I want to modify this code attached so that I can scan and view all BLE devices, regardless if it is a temp sensor. Can someone please explain me or show me how i can do this. here are the codes snippets to grab BLE Temp sensor data.
package no.nordicsemi.android.nrftemp.ble;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import no.nordicsemi.android.nrftemp.ble.parser.TemperatureData;
import no.nordicsemi.android.nrftemp.ble.parser.TemperatureDataParser;
import no.nordicsemi.android.nrftemp.database.DatabaseHelper;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.content.Context;
import android.os.Handler;
public class TemperatureManager implements BluetoothAdapter.LeScanCallback {
/** An minimal interval between each data row in the database for a single device */
private static final long DATA_INTERVAL = 60 * 5 * 1000L; // ms
private BluetoothAdapter mBluetoothAdapter;
private DatabaseHelper mDatabaseHelper;
private List<TemperatureManagerCallback> mListeners;
public TemperatureManager(final Context context, final DatabaseHelper databaseHelper) {
final BluetoothManager bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter = bluetoothManager.getAdapter();
mDatabaseHelper = databaseHelper;
mListeners = new ArrayList<TemperatureManagerCallback>(2);
}
public void addCallback(final TemperatureManagerCallback callback) {
mListeners.add(callback);
}
public void removeCallback(final TemperatureManagerCallback callback) {
mListeners.remove(callback);
}
private void fireOnDevicesScanned() {
for (TemperatureManagerCallback callback : mListeners)
callback.onDevicesScaned();
}
private void fireOnRssiUpdate(final long sensorId, final int rssi) {
for (TemperatureManagerCallback callback : mListeners)
callback.onRssiUpdate(sensorId, rssi);
}
/**
* Starts scanning for temperature data. Call {#link #stopScan()} when done to save the power.
*/
public void startScan() {
mBluetoothAdapter.startLeScan(this);
}
/**
* Starts scanning for temperature data. Call {#link #stopScan()} when done to save the power.
*/
public void startScan(final long period) {
mBluetoothAdapter.startLeScan(this);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
stopScan();
}
}, period);
}
/**
* Stops scanning for temperature data from BLE sensors.
*/
public void stopScan() {
mBluetoothAdapter.stopLeScan(this);
}
#Override
public void onLeScan(final BluetoothDevice device, final int rssi, final byte[] scanRecord) {
final TemperatureData td = TemperatureDataParser.parse(device, scanRecord);
if (!td.isValid())
return;
final long now = Calendar.getInstance().getTimeInMillis();
final long then = mDatabaseHelper.getLastTimestamp(td.getAddress());
if (now - then > DATA_INTERVAL) {
mDatabaseHelper.addNewSensorData(device.getAddress(), device.getName(), now,
td.getTemp(), td.getBattery());
fireOnDevicesScanned();
}
final long sensorId = mDatabaseHelper.findSensor(device.getAddress());
final int rssiPercent = (int) (100.0f * (127.0f + rssi) / 127.0f + 20.0f);
mDatabaseHelper.updateSensorRssi(sensorId, rssiPercent);
fireOnRssiUpdate(sensorId, rssiPercent);
}
/**
* Return <code>true</code> if Bluetooth is currently enabled and ready for use.
*
* #return <code>true</code> if the local adapter is turned on
*/
public boolean isEnabled() {
return mBluetoothAdapter != null && mBluetoothAdapter.isEnabled();
}
}
package no.nordicsemi.android.nrftemp.ble.parser;
import android.bluetooth.BluetoothDevice;
/**
* Domain class contains data obtained from a single advertising package from a temperature sensor.
*/
public class TemperatureData {
/** The device address */
private final String address;
/** The device name */
private String name;
/** The temperature value */
private double temp;
/** Battery status (number 0-100 in percent) */
private int battery = 0xFF; // unknown value
/**
* The flag whether the data are valid (holds real temperature measurement or not)
*/
private boolean valid;
public TemperatureData(BluetoothDevice device) {
address = device.getAddress();
name = device.getName();
}
public String getAddress() {
return address;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getTemp() {
return temp;
}
public void setTemp(double temp) {
this.temp = temp;
this.valid = true;
}
public int getBattery() {
return battery;
}
public void setBattery(int battery) {
this.battery = battery;
}
public boolean isValid() {
return valid;
}
}
package no.nordicsemi.android.nrftemp.ble.parser;
import java.io.UnsupportedEncodingException;
import java.text.ParseException;
import android.bluetooth.BluetoothDevice;
import android.util.Log;
public class TemperatureDataParser {
private static final String TAG = "TemperatureDataParser";
private static final int FLAGS = 0x02; // "Flags" Data Type (See section 18.1 of Core_V4.0.pdf)
private static final int LOCAL_NAME = 0x09; // "Complete Local Name" Data Type (See section 18.3 of Core_V4.0.pdf)
private static final int SERVICE_DATA = 0x16; // "Service Data" Data Type (See section 18.10 of Core_V4.0.pdf)
private static final short TEMPERATURE_SERVICE_UUID = 0x1809;
private static final short BATTERY_SERVICE_UUID = 0x180F;
private static final short DEVICE_INFORMATION_SERVICE_UUID = 0x180A;
/**
* Parses the advertising package obtained by BLE device
*
* #param data
* the data obtained (EIR data). Read Bluetooth Core Specification v4.0 (Core_V4.0.pdf -> Vol.3 -> Part C -> Section 8) for details
* #return the parsed temperature data
* #throws ParseException
* thrown when the given data does not fit the expected format
*/
public static TemperatureData parse(final BluetoothDevice device, final byte[] data) {
final TemperatureData td = new TemperatureData(device);
/*
* First byte of each EIR Data Structure has it's length (1 octet).
* There comes the EIR Data Type (n bytes) and (length - n bytes) of data.
* See Core_V4.0.pdf -> Vol.3 -> Part C -> Section 8 for details
*/
for (int i = 0; i < data.length;) {
final int eirLength = data[i];
// check whether there is no more to read
if (eirLength == 0)
break;
final int eirDataType = data[++i];
switch (eirDataType) {
case FLAGS:
// do nothing
break;
case LOCAL_NAME:
/*
* Local name data structure contains length - 1 bytes of the device name (1 byte for the data type)
*/
final String name = decodeLocalName(data, i + 1, eirLength - 1);
td.setName(name);
break;
case SERVICE_DATA:
/*
* First 2 bytes of service data are the 16-bit Service UUID in reverse order. The rest is service specific data.
*/
final short serviceUUID = decodeServiceUUID(data, i + 1);
switch (serviceUUID) {
case BATTERY_SERVICE_UUID:
final int battery = decodeBatteryLevel(data, i + 3);
td.setBattery(battery);
break;
case TEMPERATURE_SERVICE_UUID:
final double temp = decodeTempLevel(data, i + 3);
td.setTemp(temp);
break;
case DEVICE_INFORMATION_SERVICE_UUID:
// do nothing
break;
}
break;
default:
break;
}
i += eirLength;
}
return td;
}
private static String decodeLocalName(final byte[] data, final int start, final int length) {
try {
return new String(data, start, length, "UTF-8");
} catch (UnsupportedEncodingException e) {
Log.e(TAG, "Unable to convert the local name to UTF-8", e);
return null;
}
}
private static short decodeServiceUUID(final byte[] data, final int start) {
return (short) ((data[start + 1] << 8) | data[start]);
}
private static int decodeBatteryLevel(final byte[] data, final int start) {
/*
* Battery level is a 1 byte number 0-100 (0x64). Value 255 (0xFF) is used for illegal measurement values
*/
return data[start];
}
private static float decodeTempLevel(final byte[] data, final int start) {
return bytesToFloat(data[start], data[start + 1], data[start + 2], data[start + 3]);
}
/**
* Convert signed bytes to a 32-bit short float value.
*/
private static float bytesToFloat(byte b0, byte b1, byte b2, byte b3) {
int mantissa = unsignedToSigned(unsignedByteToInt(b0) + (unsignedByteToInt(b1) << 8) + (unsignedByteToInt(b2) << 16), 24);
return (float) (mantissa * Math.pow(10, b3));
}
/**
* Convert a signed byte to an unsigned int.
*/
private static int unsignedByteToInt(byte b) {
return b & 0xFF;
}
/**
* Convert an unsigned integer value to a two's-complement encoded signed value.
*/
private static int unsignedToSigned(int unsigned, int size) {
if ((unsigned & (1 << size - 1)) != 0) {
unsigned = -1 * ((1 << size - 1) - (unsigned & ((1 << size - 1) - 1)));
}
return unsigned;
}
}

As far as I can see, the code is scanning for every BLE device already, there are no service uuid restrictions in the scanning mBluetoothAdapter.startLeScan(this);
The issue with this code (as with many examples) is that it assumes every device to be of their own type (Temperature sensor in this case).
The assumption is here:
public void onLeScan(final BluetoothDevice device, final int rssi, final byte[] scanRecord) {
final TemperatureData td = TemperatureDataParser.parse(device, scanRecord);
The only way to know what services a device support is by connecting to it, do service discovery and the check for the supported services.
Regards, Rob.

Automate File transfer to a PAIRED device in android using bluetooth

I'm a newbie in android programming. So, basically I was trying to automate a file transfer from my android phone(2.3.3) to a PAIRED laptop bluetooth...
I can send manually using share--bluetooth--search for paired device and then send it.
But I want to accomplish this automatically.
APP must only be on sender side. (Duh! receiver is laptop)
App code:
File myFile = new File(Environment.getExternalStorageDirectory()+"/mysdfile.txt");
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if(mBluetoothAdapter == null){}
if(!mBluetoothAdapter.isEnabled()){
Intent enableBluetooth = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBluetooth, 0);
}
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
if(pairedDevices.size() > 0){
for(BluetoothDevice device : pairedDevices){
if(device.getName().equals("HARSHAR-HP")){
mmDevice = device;
mdeviceadd= device.getAddress();
Log.d(TAG, "found device");
break;
}else {
Log.d(TAG, "FAilure");
}
}
}
ContentValues values = new ContentValues();
values.put(BluetoothShare.URI,Environment.getExternalStorageDirectory()+"/mysdfile.txt");
values.put(BluetoothShare.DESTINATION, mdeviceadd);
values.put(BluetoothShare.DIRECTION, BluetoothShare.DIRECTION_OUTBOUND);
Long ts = System.currentTimeMillis();
values.put(BluetoothShare.TIMESTAMP, ts);
getContentResolver().insert(BluetoothShare.CONTENT_URI, values);
Log.d(TAG, "Till here ok");
BluetoothShare.java:
import android.provider.BaseColumns;
import android.net.Uri;
/**
* Exposes constants used to interact with the Bluetooth Share manager's content
* provider.
*/
public final class BluetoothShare implements BaseColumns {
private BluetoothShare() {
}
/**
* The permission to access the Bluetooth Share Manager
*/
public static final String PERMISSION_ACCESS = "android.permission.ACCESS_BLUETOOTH_SHARE";
/**
* The content:// URI for the data table in the provider
*/
public static final Uri CONTENT_URI = Uri.parse("content://com.android.bluetooth.opp/btopp");
/**
* Broadcast Action: this is sent by the Bluetooth Share component to
* transfer complete. The request detail could be retrieved by app * as _ID
* is specified in the intent's data.
*/
public static final String TRANSFER_COMPLETED_ACTION = "android.btopp.intent.action.TRANSFER_COMPLETE";
/**
* This is sent by the Bluetooth Share component to indicate there is an
* incoming file need user to confirm.
*/
public static final String INCOMING_FILE_CONFIRMATION_REQUEST_ACTION = "android.btopp.intent.action.INCOMING_FILE_NOTIFICATION";
/**
* This is sent by the Bluetooth Share component to indicate there is an
* incoming file request timeout and need update UI.
*/
public static final String USER_CONFIRMATION_TIMEOUT_ACTION = "android.btopp.intent.action.USER_CONFIRMATION_TIMEOUT";
/**
* The name of the column containing the URI of the file being
* sent/received.
*/
public static final String URI = "uri";
/**
* The name of the column containing the filename that the incoming file
* request recommends. When possible, the Bluetooth Share manager will
* attempt to use this filename, or a variation, as the actual name for the
* file.
*/
public static final String FILENAME_HINT = "hint";
/**
* The name of the column containing the filename where the shared file was
* actually stored.
*/
public static final String _DATA = "_data";
/**
* The name of the column containing the MIME type of the shared file.
*/
public static final String MIMETYPE = "mimetype";
/**
* The name of the column containing the direction (Inbound/Outbound) of the
* transfer. See the DIRECTION_* constants for a list of legal values.
*/
public static final String DIRECTION = "direction";
/**
* The name of the column containing Bluetooth Device Address that the
* transfer is associated with.
*/
public static final String DESTINATION = "destination";
/**
* The name of the column containing the flags that controls whether the
* transfer is displayed by the UI. See the VISIBILITY_* constants for a
* list of legal values.
*/
public static final String VISIBILITY = "visibility";
/**
* The name of the column containing the current user confirmation state of
* the transfer. Applications can write to this to confirm the transfer. the
* USER_CONFIRMATION_* constants for a list of legal values.
*/
public static final String USER_CONFIRMATION = "confirm";
/**
* The name of the column containing the current status of the transfer.
* Applications can read this to follow the progress of each download. See
* the STATUS_* constants for a list of legal values.
*/
public static final String STATUS = "status";
/**
* The name of the column containing the total size of the file being
* transferred.
*/
public static final String TOTAL_BYTES = "total_bytes";
/**
* The name of the column containing the size of the part of the file that
* has been transferred so far.
*/
public static final String CURRENT_BYTES = "current_bytes";
/**
* The name of the column containing the timestamp when the transfer is
* initialized.
*/
public static final String TIMESTAMP = "timestamp";
/**
* This transfer is outbound, e.g. share file to other device.
*/
public static final int DIRECTION_OUTBOUND = 0;
/**
* This transfer is inbound, e.g. receive file from other device.
*/
public static final int DIRECTION_INBOUND = 1;
/**
* This transfer is waiting for user confirmation.
*/
public static final int USER_CONFIRMATION_PENDING = 0;
/**
* This transfer is confirmed by user.
*/
public static final int USER_CONFIRMATION_CONFIRMED = 1;
/**
* This transfer is auto-confirmed per previous user confirmation.
*/
public static final int USER_CONFIRMATION_AUTO_CONFIRMED = 2;
/**
* This transfer is denied by user.
*/
public static final int USER_CONFIRMATION_DENIED = 3;
/**
* This transfer is timeout before user action.
*/
public static final int USER_CONFIRMATION_TIMEOUT = 4;
/**
* This transfer is visible and shows in the notifications while in progress
* and after completion.
*/
public static final int VISIBILITY_VISIBLE = 0;
/**
* This transfer doesn't show in the notifications.
*/
public static final int VISIBILITY_HIDDEN = 1;
/**
* Returns whether the status is informational (i.e. 1xx).
*/
public static boolean isStatusInformational(int status) {
return (status >= 100 && status < 200);
}
/**
* Returns whether the transfer is suspended. (i.e. whether the transfer
* won't complete without some action from outside the transfer manager).
*/
public static boolean isStatusSuspended(int status) {
return (status == STATUS_PENDING);
}
/**
* Returns whether the status is a success (i.e. 2xx).
*/
public static boolean isStatusSuccess(int status) {
return (status >= 200 && status < 300);
}
/**
* Returns whether the status is an error (i.e. 4xx or 5xx).
*/
public static boolean isStatusError(int status) {
return (status >= 400 && status < 600);
}
/**
* Returns whether the status is a client error (i.e. 4xx).
*/
public static boolean isStatusClientError(int status) {
return (status >= 400 && status < 500);
}
/**
* Returns whether the status is a server error (i.e. 5xx).
*/
public static boolean isStatusServerError(int status) {
return (status >= 500 && status < 600);
}
/**
* Returns whether the transfer has completed (either with success or
* error).
*/
public static boolean isStatusCompleted(int status) {
return (status >= 200 && status < 300) || (status >= 400 && status < 600);
}
/**
* This transfer hasn't stated yet
*/
public static final int STATUS_PENDING = 190;
/**
* This transfer has started
*/
public static final int STATUS_RUNNING = 192;
/**
* This transfer has successfully completed. Warning: there might be other
* status values that indicate success in the future. Use isSucccess() to
* capture the entire category.
*/
public static final int STATUS_SUCCESS = 200;
/**
* This request couldn't be parsed. This is also used when processing
* requests with unknown/unsupported URI schemes.
*/
public static final int STATUS_BAD_REQUEST = 400;
/**
* This transfer is forbidden by target device.
*/
public static final int STATUS_FORBIDDEN = 403;
/**
* This transfer can't be performed because the content cannot be handled.
*/
public static final int STATUS_NOT_ACCEPTABLE = 406;
/**
* This transfer cannot be performed because the length cannot be determined
* accurately. This is the code for the HTTP error "Length Required", which
* is typically used when making requests that require a content length but
* don't have one, and it is also used in the client when a response is
* received whose length cannot be determined accurately (therefore making
* it impossible to know when a transfer completes).
*/
public static final int STATUS_LENGTH_REQUIRED = 411;
/**
* This transfer was interrupted and cannot be resumed. This is the code for
* the OBEX error "Precondition Failed", and it is also used in situations
* where the client doesn't have an ETag at all.
*/
public static final int STATUS_PRECONDITION_FAILED = 412;
/**
* This transfer was canceled
*/
public static final int STATUS_CANCELED = 490;
/**
* This transfer has completed with an error. Warning: there will be other
* status values that indicate errors in the future. Use isStatusError() to
* capture the entire category.
*/
public static final int STATUS_UNKNOWN_ERROR = 491;
/**
* This transfer couldn't be completed because of a storage issue.
* Typically, that's because the file system is missing or full.
*/
public static final int STATUS_FILE_ERROR = 492;
/**
* This transfer couldn't be completed because of no sdcard.
*/
public static final int STATUS_ERROR_NO_SDCARD = 493;
/**
* This transfer couldn't be completed because of sdcard full.
*/
public static final int STATUS_ERROR_SDCARD_FULL = 494;
/**
* This transfer couldn't be completed because of an unspecified un-handled
* OBEX code.
*/
public static final int STATUS_UNHANDLED_OBEX_CODE = 495;
/**
* This transfer couldn't be completed because of an error receiving or
* processing data at the OBEX level.
*/
public static final int STATUS_OBEX_DATA_ERROR = 496;
/**
* This transfer couldn't be completed because of an error when establishing
* connection.
*/
public static final int STATUS_CONNECTION_ERROR = 497;
}
NO error in code... but nothing happens.
file is not transfered.. please someone help me fix the code.. DOnt ask me to see SAMPLE EXAMPLE, Didnt understand how to send file through it.

I'm afraid that way of transferring files is not valid in Android 4+.
Instead, you can use this piece of code, though it will not transfer automatically the file, it prompts the user to select the destination. I don't think it's possible to send files without user authorization anymore, it's a huge security flaw in my opinion.
public void sendFile(String fileName){
Log.d(TAG, "Sending file...");
File dir = Environment.getExternalStorageDirectory();
File manualFile = new File(dir, "/" + fileName);
Uri uri = Uri.fromFile(manualFile);
String type = "application/pdf";
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType(type);
sharingIntent.setClassName("com.android.bluetooth", "com.android.bluetooth.opp.BluetoothOppLauncherActivity");
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(sharingIntent);
}