How to capture human signature [closed]

Answer 1

Here's how I have capture human signature and save image using this example:

https://demonuts.com/android-capture-digital-signature/

First add following to your gradle:

 repositories {
        jcenter()
  }

  repositories {
      maven {
          url 'https://dl.bintray.com/zahid/maven/'
      }
  }

  dependencies {
      compile 'com.kyanogen.signatureview:signature-view:1.0'
  }

activity_main.xml:

MainActivity.java:

package com.example.parsaniahardik.signaturedemo;

import android.graphics.Bitmap;
import android.media.MediaScannerConnection;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import com.kyanogen.signatureview.SignatureView;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    Bitmap bitmap;
    Button clear,save;
    SignatureView signatureView;
    String path;
    private static final String IMAGE_DIRECTORY = "/signdemo";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        signatureView =  (SignatureView) findViewById(R.id.signature_view);
        clear = (Button) findViewById(R.id.clear);
        save = (Button) findViewById(R.id.save);

        clear.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                signatureView.clearCanvas();
            }
        });

        save.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                bitmap = signatureView.getSignatureBitmap();
                path = saveImage(bitmap);
            }
        });


    }
    public String saveImage(Bitmap myBitmap) {
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        myBitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
        File wallpaperDirectory = new File(
                Environment.getExternalStorageDirectory() + IMAGE_DIRECTORY /*iDyme folder*/);
        // have the object build the directory structure, if needed.
        if (!wallpaperDirectory.exists()) {
            wallpaperDirectory.mkdirs();
            Log.d("hhhhh",wallpaperDirectory.toString());
        }

        try {
            File f = new File(wallpaperDirectory, Calendar.getInstance()
                    .getTimeInMillis() + ".jpg");
            f.createNewFile();
            FileOutputStream fo = new FileOutputStream(f);
            fo.write(bytes.toByteArray());
            MediaScannerConnection.scanFile(MainActivity.this,
                    new String[]{f.getPath()},
                    new String[]{"image/jpeg"}, null);
            fo.close();
            Log.d("TAG", "File Saved::--->" + f.getAbsolutePath());

            return f.getAbsolutePath();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        return "";

    }
}

Don't forget to give READ-WRITE permission in manifest.xml