Android

React-Native Common Commands

To get the list of available emulator

emulator -list-avds

1	emulator -list-avds

To open a emulator

emulator -avd Pixel_API_30

1	emulator -avd Pixel_API_30

Listing all available simulators

xcrun simctl list

1	xcrun simctl list

open -a Simulator

react-native run-ios --simulator="iPhone 4s"
react-native run-ios --simulator="iPhone Xʀ"
react-native run-ios --simulator="iPhone 6"

react-native run-ios --simulator="iPhone 4s"

react-native run-ios --simulator="iPhone Xʀ"

react-native run-ios --simulator="iPhone 6"

Print log on Terminal

react-native log-android

react-native log-ios

react-native run-ios --device "Anshul’s iPhone"

react-native log-android

react-native log-ios

react-native run-ios --device "Anshul’s iPhone"

React Devtools https://github.com/facebook/react-devtools/tree/master/packages/react-devtools Reset Cache

npm start -- --reset-cache

1	npm start -- --reset-cache

Update Dependency

npm i -g npm-check-updates
ncu -u
npm install

npm i -g npm-check-updates

ncu -u

npm install

react-native unlink react-native-gesture-handler --platforms ios

1	react-native unlink react-native-gesture-handler --platforms ios

1. Clear watchman watches: watchman watch-del-all. 2. Delete the […]

shubham sharma October 27, 2020 Read More

Android: Create thumbnail of video

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Bitmap blurRenderScript(Context context, Bitmap srcBitmap, int radius) {
	Bitmap bitmap = Bitmap.createBitmap(
			srcBitmap.getWidth(), srcBitmap.getHeight(),
			Bitmap.Config.ARGB_8888);

	RenderScript renderScript = RenderScript.create(context);

	Allocation blurInput = Allocation.createFromBitmap(renderScript, srcBitmap);
	Allocation blurOutput = Allocation.createFromBitmap(renderScript, bitmap);

	ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(renderScript,
			Element.U8_4(renderScript));
	blur.setInput(blurInput);
	blur.setRadius(radius); // radius must be 0 < r <= 25
	blur.forEach(blurOutput);

	blurOutput.copyTo(bitmap);
	renderScript.destroy();

	return bitmap;
}

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)

public static Bitmap blurRenderScript(Context context, Bitmap srcBitmap, int radius) {

Bitmap bitmap = Bitmap.createBitmap(

srcBitmap.getWidth(), srcBitmap.getHeight(),

Bitmap.Config.ARGB_8888);

RenderScript renderScript = RenderScript.create(context);

Allocation blurInput = Allocation.createFromBitmap(renderScript, srcBitmap);

Allocation blurOutput = Allocation.createFromBitmap(renderScript, bitmap);

ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(renderScript,

Element.U8_4(renderScript));

blur.setInput(blurInput);

blur.setRadius(radius); // radius must be 0 < r <= 25

blur.forEach(blurOutput);

blurOutput.copyTo(bitmap);

renderScript.destroy();

return bitmap;

}

shubham sharma June 5, 2020 Read More

Andorid: Copy File

public static void copy(File src, File dst) throws IOException {
	try (InputStream in = new FileInputStream(src)) {
		try (OutputStream out = new FileOutputStream(dst)) {
			// Transfer bytes from in to out
			byte[] buf = new byte[1024];
			int len;
			while ((len = in.read(buf)) > 0) {
				out.write(buf, 0, len);
			}
		}
	}
}

public static void copy(File src, File dst) throws IOException {

try (InputStream in = new FileInputStream(src)) {

try (OutputStream out = new FileOutputStream(dst)) {

// Transfer bytes from in to out

byte[] buf = new byte[1024];

int len;

while ((len = in.read(buf)) > 0) {

out.write(buf, 0, len);

}

shubham sharma June 5, 2020 Read More

Open Google map

First method: In Android

String uri = String.format(Locale.ENGLISH, "geo:%f,%f", latitude, longitude);
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri));
context.startActivity(intent);

String uri = String.format(Locale.ENGLISH, "geo:%f,%f", latitude, longitude);

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri));

context.startActivity(intent);

EDIT: This might not work with Google maps 7,0 hence you could change the URI to : Second option:

String geoUri = "http://maps.google.com/maps?q=loc:" + lat + "," + lng + " (" + Location Name + ")";

1	String geoUri = "http://maps.google.com/maps?q=loc:" + lat + "," + lng + " (" + Location Name + ")";

Third option:

geo:0,0?q=FullAddress

1	geo:0,0?q=FullAddress

Fourth option:

String map = "http://maps.google.co.in/maps?q=" + FullAddress;

1	String map = "http://maps.google.co.in/maps?q=" + FullAddress;

shubham sharma August 8, 2019 Read More

handle “Search” button on keyboard

In the layout set your input method options to search.

<EditText
    android:imeOptions="actionSearch" 
    android:inputType="text" />

<EditText

android:imeOptions="actionSearch"

android:inputType="text" />

In the java add the editor action listener.

editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_SEARCH) {
            performSearch();
            return true;
        }
        return false;
    }
});

editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {

@Override

public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {

if (actionId == EditorInfo.IME_ACTION_SEARCH) {

performSearch();

return true;

}

return false;

}

});

shubham sharma March 8, 2019 Read More

Android Date manipulate

Replace date with “today” or “yesterday”

 public static String formatToYesterdayOrToday(String date) throws ParseException {
        Date dateTime = new SimpleDateFormat("hh:mm a dd-MM-yyyy", Locale.getDefault()).parse(date);//EEE hh:mma MMM d, yyyy
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(dateTime);
        Calendar today = Calendar.getInstance();
        Calendar yesterday = Calendar.getInstance();
        yesterday.add(Calendar.DATE, -1);
        SimpleDateFormat timeFormatter = new SimpleDateFormat("hh:mma", Locale.getDefault());

        if (calendar.get(Calendar.YEAR) == today.get(Calendar.YEAR) && calendar.get(Calendar.DAY_OF_YEAR) == today.get(Calendar.DAY_OF_YEAR)) {
            return "Today " + timeFormatter.format(dateTime);
        } else if (calendar.get(Calendar.YEAR) == yesterday.get(Calendar.YEAR) && calendar.get(Calendar.DAY_OF_YEAR) == yesterday.get(Calendar.DAY_OF_YEAR)) {
            return "Yesterday " + timeFormatter.format(dateTime);
        } else {
            return date;
        }
    }

public static String formatToYesterdayOrToday(String date) throws ParseException {

Date dateTime = new SimpleDateFormat("hh:mm a dd-MM-yyyy", Locale.getDefault()).parse(date);//EEE hh:mma MMM d, yyyy

Calendar calendar = Calendar.getInstance();

calendar.setTime(dateTime);

Calendar today = Calendar.getInstance();

Calendar yesterday = Calendar.getInstance();

yesterday.add(Calendar.DATE, -1);

SimpleDateFormat timeFormatter = new SimpleDateFormat("hh:mma", Locale.getDefault());

if (calendar.get(Calendar.YEAR) == today.get(Calendar.YEAR) && calendar.get(Calendar.DAY_OF_YEAR) == today.get(Calendar.DAY_OF_YEAR)) {

return "Today " + timeFormatter.format(dateTime);

} else if (calendar.get(Calendar.YEAR) == yesterday.get(Calendar.YEAR) && calendar.get(Calendar.DAY_OF_YEAR) == yesterday.get(Calendar.DAY_OF_YEAR)) {

return "Yesterday " + timeFormatter.format(dateTime);

} else {

return date;

}

shubham sharma February 16, 2019 Read More

Android camera picker

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.provider.MediaStore;
import android.widget.ImageView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;

import java.io.File;

public class ImagePickerClass {
    private static int RESULT_LOAD_IMAGE = 786;
    private ImagePickerMethod imagePickerMethod;
    private Activity activity;

    public ImagePickerClass(ImagePickerMethod imagePickerMethod, Activity activity) {
        this.imagePickerMethod = imagePickerMethod;
        this.activity = activity;
    }

    public void openPicker() {
        Intent i = new Intent(
                Intent.ACTION_PICK,
                MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

        activity.startActivityForResult(i, RESULT_LOAD_IMAGE);
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {


        if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && null != data) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = {MediaStore.Images.Media.DATA};

            Cursor cursor = activity.getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String picturePath = cursor.getString(columnIndex);
            cursor.close();
            imagePickerMethod.fileUrl(new File(picturePath));
        }
    }


    public interface ImagePickerMethod {
        void fileUrl(File file);
    }
}

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.database.Cursor;

import android.net.Uri;

import android.provider.MediaStore;

import android.widget.ImageView;

import android.widget.Toast;

import com.bumptech.glide.Glide;

import com.bumptech.glide.request.RequestOptions;

import java.io.File;

public class ImagePickerClass {

private static int RESULT_LOAD_IMAGE = 786;

private ImagePickerMethod imagePickerMethod;

private Activity activity;

public ImagePickerClass(ImagePickerMethod imagePickerMethod, Activity activity) {

this.imagePickerMethod = imagePickerMethod;

this.activity = activity;

}

public void openPicker() {

Intent i = new Intent(

Intent.ACTION_PICK,

MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

activity.startActivityForResult(i, RESULT_LOAD_IMAGE);

}

public void onActivityResult(int requestCode, int resultCode, Intent data) {

if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && null != data) {

Uri selectedImage = data.getData();

String[] filePathColumn = {MediaStore.Images.Media.DATA};

Cursor cursor = activity.getContentResolver().query(selectedImage,

filePathColumn, null, null, null);

cursor.moveToFirst();

int columnIndex = cursor.getColumnIndex(filePathColumn[0]);

String picturePath = cursor.getString(columnIndex);

cursor.close();

imagePickerMethod.fileUrl(new File(picturePath));

}

public interface ImagePickerMethod {

void fileUrl(File file);

}

implement CameraPickerClass.CameraPickerMethod in your activity or fragment

@Override
public void fileUrl(File file) {
   chatStatus.setText("Please wait file uploading...");        
}

@Override

public void fileUrl(File file) {

chatStatus.setText("Please wait file uploading...");

}

initlize object

private CameraPickerClass cameraPickerClass;
cameraPickerClass = new CameraPickerClass(this, this);

1 2	private CameraPickerClass cameraPickerClass; cameraPickerClass = new CameraPickerClass(this, this);

call

cameraPickerClass.openPicker();

1	cameraPickerClass.openPicker();

add in AndroidManifest.xml

<provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="${applicationId}.provider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/provider_paths"/>
        </provider>

<provider

android:name="android.support.v4.content.FileProvider"

android:authorities="${applicationId}.provider"

android:exported="false"

android:grantUriPermissions="true">

<meta-data

android:name="android.support.FILE_PROVIDER_PATHS"

android:resource="@xml/provider_paths"/>

</provider>

create provider_paths.xml in xml folder

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <root-path name="root" path="." />
</paths>

<?xml version="1.0" encoding="utf-8"?>

<paths>

<root-path name="root" path="." />

</paths>

in onActivityResult

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (cameraPickerClass != null)
        cameraPickerClass.onActivityResult(requestCode, resultCode, data);
}

in onActivityResult

@Override

public void onActivityResult(int requestCode, int resultCode, Intent data) {

if (cameraPickerClass != null)

cameraPickerClass.onActivityResult(requestCode, resultCode, data);

}

shubham sharma February 14, 2019 Read More

Android Document picker

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.provider.OpenableColumns;
import android.widget.ImageView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;

public class DocPickerClass {
    private static int RESULT_LOAD_IMAGE = 783;
    private DocPickerMethod docPickerMethod;
    private Activity activity;

    public DocPickerClass(DocPickerMethod docPickerMethod, Activity activity) {
        this.docPickerMethod = docPickerMethod;
        this.activity = activity;
    }

    public void openPicker() {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("*/*");
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        /*String[] mimeTypes = {"application/pdf", "application/msword", "application/xlsx"};
        intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
        intent.setAction(Intent.ACTION_GET_CONTENT);*/
        try {
            activity.startActivityForResult(
                    Intent.createChooser(intent, "Select a File to Upload"),
                    RESULT_LOAD_IMAGE);
        } catch (android.content.ActivityNotFoundException ex) {
            // Potentially direct the user to the Market with a Dialog
            Toast.makeText(activity, "Please install a File Manager.",
                    Toast.LENGTH_SHORT).show();
        }

    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && data != null) {
            Uri uri = data.getData();
            try {
                if (uri != null) {
                    String path = uri.getPath();
                    File file = new File(path);
                    if(file.exists()){
                        docPickerMethod.selectedFile(file);
                    }else{
                        Cursor cursor = activity.getApplicationContext().getContentResolver()
                                .query(uri, null, null, null, null, null);
                        if (cursor != null && cursor.moveToFirst()) {
                            byte[] fileData = readTextFromUri(uri);
                            // Note it's called "Display Name".  This is
                            // provider-specific, and might not necessarily be the file name.
                            String fileName = cursor.getString(
                                    cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
                            System.out.println("displayName: " + fileName);
                            cursor.close();
                            docPickerMethod.fileData(fileData, fileName );
                        }
                    }
                }

//                System.out.println(fileData);
            } catch (IOException e) {
                docPickerMethod.docPickingError(e);
            }catch (Exception e){
                docPickerMethod.docPickingError(e);
            }
        }
    }
    /*private String readTextFromUri(Uri uri) throws IOException {

        InputStream inputStream = activity.getContentResolver().openInputStream(uri);
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                inputStream));
        StringBuilder stringBuilder = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            stringBuilder.append(line);
        }

        return stringBuilder.toString();
    }*/

    private byte[] readTextFromUri(Uri uri) throws IOException {

        InputStream inputStream = activity.getContentResolver().openInputStream(uri);
        // this dynamically extends to take the bytes you read
        ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();

        // this is storage overwritten on each iteration with bytes
        int bufferSize = 1024;
        byte[] buffer = new byte[bufferSize];

        // we need to know how may bytes were read to write them to the byteBuffer
        int len = 0;
        while ((len = inputStream.read(buffer)) != -1) {
            byteBuffer.write(buffer, 0, len);
        }

        // and then we can return your byte array.
        return byteBuffer.toByteArray();
    }
    public interface DocPickerMethod {
        void fileData(byte[] data, String fileName);
        void selectedFile(File file);
        void docPickingError(Exception ex);
    }
}

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import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.database.Cursor;

import android.net.Uri;

import android.provider.OpenableColumns;

import android.widget.ImageView;

import android.widget.Toast;

import com.bumptech.glide.Glide;

import com.bumptech.glide.request.RequestOptions;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

public class DocPickerClass {

private static int RESULT_LOAD_IMAGE = 783;

private DocPickerMethod docPickerMethod;

private Activity activity;

public DocPickerClass(DocPickerMethod docPickerMethod, Activity activity) {

this.docPickerMethod = docPickerMethod;

this.activity = activity;

}

public void openPicker() {

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

intent.setType("*/*");

intent.addCategory(Intent.CATEGORY_OPENABLE);

/*String[] mimeTypes = {"application/pdf", "application/msword", "application/xlsx"};

intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);

intent.setAction(Intent.ACTION_GET_CONTENT);*/

try {

activity.startActivityForResult(

Intent.createChooser(intent, "Select a File to Upload"),

RESULT_LOAD_IMAGE);

} catch (android.content.ActivityNotFoundException ex) {

// Potentially direct the user to the Market with a Dialog

Toast.makeText(activity, "Please install a File Manager.",

Toast.LENGTH_SHORT).show();

}

public void onActivityResult(int requestCode, int resultCode, Intent data) {

if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && data != null) {

Uri uri = data.getData();

try {

if (uri != null) {

String path = uri.getPath();

File file = new File(path);

if(file.exists()){

docPickerMethod.selectedFile(file);

}else{

Cursor cursor = activity.getApplicationContext().getContentResolver()

.query(uri, null, null, null, null, null);

if (cursor != null && cursor.moveToFirst()) {

byte[] fileData = readTextFromUri(uri);

// Note it's called "Display Name". This is

// provider-specific, and might not necessarily be the file name.

String fileName = cursor.getString(

cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));

System.out.println("displayName: " + fileName);

cursor.close();

docPickerMethod.fileData(fileData, fileName );

}

// System.out.println(fileData);

} catch (IOException e) {

docPickerMethod.docPickingError(e);

}catch (Exception e){

docPickerMethod.docPickingError(e);

}

/*private String readTextFromUri(Uri uri) throws IOException {

InputStream inputStream = activity.getContentResolver().openInputStream(uri);

BufferedReader reader = new BufferedReader(new InputStreamReader(

inputStream));

StringBuilder stringBuilder = new StringBuilder();

String line;

while ((line = reader.readLine()) != null) {

stringBuilder.append(line);

}

return stringBuilder.toString();

}*/

private byte[] readTextFromUri(Uri uri) throws IOException {

InputStream inputStream = activity.getContentResolver().openInputStream(uri);

// this dynamically extends to take the bytes you read

ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();

// this is storage overwritten on each iteration with bytes

int bufferSize = 1024;

byte[] buffer = new byte[bufferSize];

// we need to know how may bytes were read to write them to the byteBuffer

int len = 0;

while ((len = inputStream.read(buffer)) != -1) {

byteBuffer.write(buffer, 0, len);

}

// and then we can return your byte array.

return byteBuffer.toByteArray();

}

public interface DocPickerMethod {

void fileData(byte[] data, String fileName);

void selectedFile(File file);

void docPickingError(Exception ex);

}

implement ImagePickerClass.ImagePickerMethod in your activity or fragment

@Override
public void fileData(byte[] data, String fileName) {
        
}
    @Override
    public void selectedFile(File file) {
       
    }

@Override

public void fileData(byte[] data, String fileName) {

}

@Override

public void selectedFile(File file) {

}

initlize object

private DocPickerClass docPickerClass;
docPickerClass = new DocPickerClass(this, this);

1 2	private DocPickerClass docPickerClass; docPickerClass = new DocPickerClass(this, this);

call

docPickerClass.openPicker();

1	docPickerClass.openPicker();

in onActivityResult

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (docPickerClass != null)
        docPickerClass.onActivityResult(requestCode, resultCode, data);
    }

@Override

public void onActivityResult(int requestCode, int resultCode, Intent data) {

if (docPickerClass != null)

docPickerClass.onActivityResult(requestCode, resultCode, data);

}

shubham sharma February 14, 2019 Read More

Android image picker

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.provider.MediaStore;
import android.widget.ImageView;
import android.widget.Toast;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;

import java.io.File;

public class ImagePickerClass {
    private static int RESULT_LOAD_IMAGE = 786;
    private ImagePickerMethod imagePickerMethod;
    private Activity activity;

    public ImagePickerClass(ImagePickerMethod imagePickerMethod, Activity activity) {
        this.imagePickerMethod = imagePickerMethod;
        this.activity = activity;
    }

    public void openPicker() {
        Intent i = new Intent(
                Intent.ACTION_PICK,
                MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

        activity.startActivityForResult(i, RESULT_LOAD_IMAGE);
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {


        if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && null != data) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = {MediaStore.Images.Media.DATA};

            Cursor cursor = activity.getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String picturePath = cursor.getString(columnIndex);
            cursor.close();
            imagePickerMethod.fileUrl(new File(picturePath));
        }
    }


    public interface ImagePickerMethod {
        void fileUrl(File file);
    }
}

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.database.Cursor;

import android.net.Uri;

import android.provider.MediaStore;

import android.widget.ImageView;

import android.widget.Toast;

import com.bumptech.glide.Glide;

import com.bumptech.glide.request.RequestOptions;

import java.io.File;

public class ImagePickerClass {

private static int RESULT_LOAD_IMAGE = 786;

private ImagePickerMethod imagePickerMethod;

private Activity activity;

public ImagePickerClass(ImagePickerMethod imagePickerMethod, Activity activity) {

this.imagePickerMethod = imagePickerMethod;

this.activity = activity;

}

public void openPicker() {

Intent i = new Intent(

Intent.ACTION_PICK,

MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

activity.startActivityForResult(i, RESULT_LOAD_IMAGE);

}

public void onActivityResult(int requestCode, int resultCode, Intent data) {

if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK && null != data) {

Uri selectedImage = data.getData();

String[] filePathColumn = {MediaStore.Images.Media.DATA};

Cursor cursor = activity.getContentResolver().query(selectedImage,

filePathColumn, null, null, null);

cursor.moveToFirst();

int columnIndex = cursor.getColumnIndex(filePathColumn[0]);

String picturePath = cursor.getString(columnIndex);

cursor.close();

imagePickerMethod.fileUrl(new File(picturePath));

}

public interface ImagePickerMethod {

void fileUrl(File file);

}

implement ImagePickerClass.ImagePickerMethod in your activity or fragment

@Override
public void fileUrl(File file) {
   chatStatus.setText("Please wait file uploading...");        
}

@Override

public void fileUrl(File file) {

chatStatus.setText("Please wait file uploading...");

}

initlize object

private ImagePickerClass imagePickerClass;
imagePickerClass = new ImagePickerClass(this, this);

1 2	private ImagePickerClass imagePickerClass; imagePickerClass = new ImagePickerClass(this, this);

call

imagePickerClass.openPicker();

1	imagePickerClass.openPicker();

in onActivityResult

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (imagePickerClass != null)
            imagePickerClass.onActivityResult(requestCode, resultCode, data);
}

@Override

public void onActivityResult(int requestCode, int resultCode, Intent data) {

if (imagePickerClass != null)

imagePickerClass.onActivityResult(requestCode, resultCode, data);

}

shubham sharma February 14, 2019 Read More

Android Runtime Permission

import android.app.Activity;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;

public class PermissionClass {

    private final int REQUEST_PERMISSIONS = 4154;
    private PermissionRequire permissionRequire;
    private Activity activity;
    private int flag;

    public PermissionClass(PermissionRequire permissionRequire, Activity activity) {
        this.permissionRequire = permissionRequire;
        this.activity = activity;

    }

    public void askPermission(int flag) {
        this.flag = flag;
        if (hasPermissions(this.permissionRequire.listOfPermission())) {
            this.permissionRequire.permissionGranted(flag);
        } else {
            ActivityCompat.requestPermissions(activity, this.permissionRequire.listOfPermission(), REQUEST_PERMISSIONS);

        }
    }

    private boolean hasPermissions(String... permissions) {
        if (permissions != null) {
            for (String permission : permissions) {
                if (ActivityCompat.checkSelfPermission(activity, permission) != PackageManager.PERMISSION_GRANTED) {
                    return false;
                }
            }
        }
        return true;
    }


    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {

        if (requestCode == REQUEST_PERMISSIONS) {
            boolean allAllow = true;
            for (int i = 0; i < permissions.length; i++) {
                if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
                    allAllow = false;
                    break;
                }
            }
            if (allAllow) {
                this.permissionRequire.permissionGranted(flag);
            } else {
                this.permissionRequire.permissionDeny();
            }
        }
    }


    public interface PermissionRequire {
        void permissionDeny();

        void permissionGranted(int flag);

        String[] listOfPermission();
    }

}

import android.app.Activity;

import android.content.pm.PackageManager;

import android.support.v4.app.ActivityCompat;

public class PermissionClass {

private final int REQUEST_PERMISSIONS = 4154;

private PermissionRequire permissionRequire;

private Activity activity;

private int flag;

public PermissionClass(PermissionRequire permissionRequire, Activity activity) {

this.permissionRequire = permissionRequire;

this.activity = activity;

}

public void askPermission(int flag) {

this.flag = flag;

if (hasPermissions(this.permissionRequire.listOfPermission())) {

this.permissionRequire.permissionGranted(flag);

} else {

ActivityCompat.requestPermissions(activity, this.permissionRequire.listOfPermission(), REQUEST_PERMISSIONS);

}

private boolean hasPermissions(String... permissions) {

if (permissions != null) {

for (String permission : permissions) {

if (ActivityCompat.checkSelfPermission(activity, permission) != PackageManager.PERMISSION_GRANTED) {

return false;

}

return true;

}

public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {

if (requestCode == REQUEST_PERMISSIONS) {

boolean allAllow = true;

for (int i = 0; i < permissions.length; i++) {

if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {

allAllow = false;

break;

}

if (allAllow) {

this.permissionRequire.permissionGranted(flag);

} else {

this.permissionRequire.permissionDeny();

}

public interface PermissionRequire {

void permissionDeny();

void permissionGranted(int flag);

String[] listOfPermission();

}

implement PermissionClass.PermissionRequire in your activity or fragment

@Override
public String[] listOfPermission() {
    return new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA};
} 
@Override
public void permissionDeny() {

}

@Override

public String[] listOfPermission() {

return new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA};

}

@Override

public void permissionDeny() {

}

initlize object

private PermissionClass permissionClass;

1	private PermissionClass permissionClass;

permissionClass = new PermissionClass(this, this);

1	permissionClass = new PermissionClass(this, this);

onRequestPermissionsResult

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    permissionClass.onRequestPermissionsResult(requestCode, permissions, grantResults);
}

@Override

public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

super.onRequestPermissionsResult(requestCode, permissions, grantResults);

permissionClass.onRequestPermissionsResult(requestCode, permissions, grantResults);

}

call with flag

permissionClass.askPermission(FLAG_CAMERA);

1	permissionClass.askPermission(FLAG_CAMERA);

shubham sharma February 14, 2019 Read More

New Dev Point

Some problems explained

Android

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handle “Search” button on keyboard

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