Below is a useful code
import java.io.File; import java.io.FileOutputStream; import java.util.Calendar; import android.app.Activity; import android.content.Context; import android.content.ContextWrapper; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.RectF; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore.Images; import android.util.AttributeSet; import android.util.Log; import android.view.Gravity; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup.LayoutParams; import android.view.Window; import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.Toast; public class CaptureSignature extends Activity { LinearLayout mContent; signature mSignature; Button mClear, mGetSign, mCancel; public static String tempDir; public int count = 1; public String current = null; private Bitmap mBitmap; View mView; File mypath; private String uniqueId; private EditText yourName; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.signature); tempDir = Environment.getExternalStorageDirectory() + "/" + getResources().getString(R.string.external_dir) + "/"; ContextWrapper cw = new ContextWrapper(getApplicationContext()); File directory = cw.getDir(getResources().getString(R.string.external_dir), Context.MODE_PRIVATE); prepareDirectory(); uniqueId = getTodaysDate() + "_" + getCurrentTime() + "_" + Math.random(); current = uniqueId + ".png"; mypath= new File(directory,current); mContent = (LinearLayout) findViewById(R.id.linearLayout); mSignature = new signature(this, null); mSignature.setBackgroundColor(Color.WHITE); mContent.addView(mSignature, LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); mClear = (Button)findViewById(R.id.clear); mGetSign = (Button)findViewById(R.id.getsign); mGetSign.setEnabled(false); mCancel = (Button)findViewById(R.id.cancel); mView = mContent; yourName = (EditText) findViewById(R.id.yourName); mClear.setOnClickListener(new OnClickListener() { public void onClick(View v) { Log.v("log_tag", "Panel Cleared"); mSignature.clear(); mGetSign.setEnabled(false); } }); mGetSign.setOnClickListener(new OnClickListener() { public void onClick(View v) { Log.v("log_tag", "Panel Saved"); boolean error = captureSignature(); if(!error){ mView.setDrawingCacheEnabled(true); mSignature.save(mView); Bundle b = new Bundle(); b.putString("status", "done"); Intent intent = new Intent(); intent.putExtras(b); setResult(RESULT_OK,intent); finish(); } } }); mCancel.setOnClickListener(new OnClickListener() { public void onClick(View v) { Log.v("log_tag", "Panel Canceled"); Bundle b = new Bundle(); b.putString("status", "cancel"); Intent intent = new Intent(); intent.putExtras(b); setResult(RESULT_OK,intent); finish(); } }); } @Override protected void onDestroy() { Log.w("GetSignature", "onDestory"); super.onDestroy(); } private boolean captureSignature() { boolean error = false; String errorMessage = ""; if(yourName.getText().toString().equalsIgnoreCase("")){ errorMessage = errorMessage + "Please enter your Name\n"; error = true; } if(error){ Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT); toast.setGravity(Gravity.TOP, 105, 50); toast.show(); } return error; } private String getTodaysDate() { final Calendar c = Calendar.getInstance(); int todaysDate = (c.get(Calendar.YEAR) * 10000) + ((c.get(Calendar.MONTH) + 1) * 100) + (c.get(Calendar.DAY_OF_MONTH)); Log.w("DATE:",String.valueOf(todaysDate)); return(String.valueOf(todaysDate)); } private String getCurrentTime() { final Calendar c = Calendar.getInstance(); int currentTime = (c.get(Calendar.HOUR_OF_DAY) * 10000) + (c.get(Calendar.MINUTE) * 100) + (c.get(Calendar.SECOND)); Log.w("TIME:",String.valueOf(currentTime)); return(String.valueOf(currentTime)); } private boolean prepareDirectory() { try { if (makedirs()) { return true; } else { return false; } } catch (Exception e) { e.printStackTrace(); Toast.makeText(this, "Could not initiate File System.. Is Sdcard mounted properly?", 1000).show(); return false; } } private boolean makedirs() { File tempdir = new File(tempDir); if (!tempdir.exists()) tempdir.mkdirs(); if (tempdir.isDirectory()) { File[] files = tempdir.listFiles(); for (File file : files) { if (!file.delete()) { System.out.println("Failed to delete " + file); } } } return (tempdir.isDirectory()); } public class signature extends View { private static final float STROKE_WIDTH = 5f; private static final float HALF_STROKE_WIDTH = STROKE_WIDTH / 2; private Paint paint = new Paint(); private Path path = new Path(); private float lastTouchX; private float lastTouchY; private final RectF dirtyRect = new RectF(); public signature(Context context, AttributeSet attrs) { super(context, attrs); paint.setAntiAlias(true); paint.setColor(Color.BLACK); paint.setStyle(Paint.Style.STROKE); paint.setStrokeJoin(Paint.Join.ROUND); paint.setStrokeWidth(STROKE_WIDTH); } public void save(View v) { Log.v("log_tag", "Width: " + v.getWidth()); Log.v("log_tag", "Height: " + v.getHeight()); if(mBitmap == null) { mBitmap = Bitmap.createBitmap (mContent.getWidth(), mContent.getHeight(), Bitmap.Config.RGB_565);; } Canvas canvas = new Canvas(mBitmap); try { FileOutputStream mFileOutStream = new FileOutputStream(mypath); v.draw(canvas); mBitmap.compress(Bitmap.CompressFormat.PNG, 90, mFileOutStream); mFileOutStream.flush(); mFileOutStream.close(); String url = Images.Media.insertImage(getContentResolver(), mBitmap, "title", null); Log.v("log_tag","url: " + url);
}
Srikanth Apr 25 2018-12-12T00: 00Z
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