I'am uing the below code to open the android default gallery app. It opens all the image folders under sdcard. How can i open only one particular folder?
Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent, "Pick any photo"), SELECT_IMAGE_FROM_GALLERY_CONSTANT);
Use this following code to get a particular folder image.
import java.io.File;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class SDCARD123Activity extends Activity implements MediaScannerConnectionClient {
public String[] allFiles;
private String SCAN_PATH ;
private static final String FILE_TYPE="image/*";
private MediaScannerConnection conn;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
File folder = new File("/sdcard/Photo/");
allFiles = folder.list();
// uriAllFiles= new Uri[allFiles.length];
for(int i = 0; i < allFiles.length; i++) {
Log.d("all file path" + i, allFiles[i]+allFiles.length);
}
// Uri uri= Uri.fromFile(new File(Environment.getExternalStorageDirectory().toString()+"/yourfoldername/"+allFiles[0]));
SCAN_PATH=Environment.getExternalStorageDirectory().toString()+"/Photo/"+allFiles[0];
System.out.println(" SCAN_PATH " +SCAN_PATH);
Log.d("SCAN PATH", "Scan Path " + SCAN_PATH);
Button scanBtn = (Button)findViewById(R.id.scanBtn);
scanBtn.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
startScan();
}});
}
private void startScan() {
Log.d("Connected","success"+conn);
if (conn!=null) {
conn.disconnect();
}
conn = new MediaScannerConnection(this,this);
conn.connect();
}
#Override
public void onMediaScannerConnected() {
Log.d("onMediaScannerConnected","success"+conn);
conn.scanFile(SCAN_PATH, FILE_TYPE);
}
#Override
public void onScanCompleted(String path, Uri uri) {
try {
Log.d("onScanCompleted", uri + "success" + conn);
System.out.println("URI " + uri);
if (uri != null) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(uri);
startActivity(intent);
}
} finally {
conn.disconnect();
conn = null;
}
}
}
Related
I am facing an issue which I do not understand. I am taking a picture then creating a PNG image file as per code that follows but somewhere down the line a random string is being added to the filename which causes me all sorts of issues. For example (as per tutorials I have found): I create an image called dimage_(generated timestamp) and save the string to shared preferences and the image in getExternalFilesDir(Environment.DIRECTORY_PICTURES). In shared preferences the string is correct but the file has the above mentioned string appended.
Eg:
The generated filename string saved in shared prefs:
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
<string name="driver_picture">dimage_20190610_065509</string>
</map>
Whereas the file checked with adb results as:
127|generic_x86:/storage/emulated/0/Android/data/africa.mykagovehicledrivers/files/Pictures $ ls
dimage_20190610_0655091215099619.png
generic_x86:/storage/emulated/0/Android/data/africa.mykagovehicledrivers/files /Pictures $
I have no clue where the 1215099619 extra part comes from!
This is the code of the activity:
package africa.mykagovehicledrivers;
import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import androidx.annotation.NonNull;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.core.content.FileProvider;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import com.squareup.picasso.Callback;
import com.squareup.picasso.Picasso;
import com.yalantis.ucrop.UCrop;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
public class RegisterDriverImage extends AppCompatActivity {
String currentPhotoPath;
final int REQUEST_TAKE_PHOTO = 1;
final int CAMERA_PERMISSIONS = 3;
Activity activity = this;
ImageView imgTakePicture, imgDriver;
Button btnContinueDriver;
ProgressBar prgImage;
SharedPreferences prefs;
SharedPreferences.Editor edit;
String imageFileName;
Tools t;
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if (requestCode == CAMERA_PERMISSIONS) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// All good so launch take picture from here
dispatchTakePictureIntent();
} else {
// Permission denied. Warn the user and kick out of app
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(R.string.permsDeniedCameraTitle);
builder.setMessage(R.string.permsDeniedCameraMessage);
builder.setCancelable(false);
builder.setPositiveButton(R.string.close, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
finishAffinity();
}
});
builder.create().show();
}
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_TAKE_PHOTO && resultCode == RESULT_OK) {
Uri starturi = Uri.fromFile(new File(currentPhotoPath));
Uri destinationuri = Uri.fromFile(new File(currentPhotoPath));
UCrop.Options options = AppConstants.setUcropOptions(activity);
UCrop.of(starturi, destinationuri).withOptions(options).start(activity);
}
// On result from cropper add to image view
if (resultCode == RESULT_OK && requestCode == UCrop.REQUEST_CROP) {
prgImage.setVisibility(View.VISIBLE);
final Uri resultUri = UCrop.getOutput(data);
assert resultUri != null;
File imgFile = new File(resultUri.getPath());
Picasso.Builder builder = new Picasso.Builder(getApplicationContext());
builder.listener(new Picasso.Listener() {
#Override
public void onImageLoadFailed(Picasso picasso, Uri uri, Exception exception) {
exception.printStackTrace();
}
});
builder.build().load(imgFile).into(imgDriver, new Callback() {
#Override
public void onSuccess() {
Log.d("-------->", "onSuccess: CROPPED!");
prgImage.setVisibility(View.INVISIBLE);
btnContinueDriver.setEnabled(true);
}
#Override
public void onError(Exception e) {
e.printStackTrace();
}
});
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register_driver_image);
prefs = getSharedPreferences("mykago-driver", Context.MODE_PRIVATE);
edit = prefs.edit();
imgTakePicture = findViewById(R.id.imgTakePicture);
imgDriver = findViewById(R.id.imgDriver);
btnContinueDriver = findViewById(R.id.btnContinueDriver);
prgImage = findViewById(R.id.prgImage);
t = new Tools(getApplication(), getApplicationContext(), this);
imgTakePicture.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dispatchTakePictureIntent();
}
});
imgDriver.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dispatchTakePictureIntent();
}
});
btnContinueDriver.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
edit.putString("driver_picture", imageFileName);
edit.putString("nextstep", "drivinglicense");
edit.apply();
Intent drivinglicense = new Intent(getApplicationContext(), RegisterDrivingLicense.class);
startActivity(drivinglicense);
finish();
}
});
// Always ask for camera permissions
if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{ Manifest.permission.CAMERA }, CAMERA_PERMISSIONS);
}
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
Log.d("IMAGE CREATION FAILED", ex.toString());
}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(this,
"africa.mykagovehicledrivers.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}
}
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US).format(new Date());
imageFileName = "dimage_" + timeStamp;
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName,
".png",
storageDir
);
// Save a file: path for use with ACTION_VIEW intents
currentPhotoPath = image.getAbsolutePath();
return image;
}
}
As per code I am using String imageFileName; to save the path and then use it in the button click action to save it into shared preferences.
Thanks!
Found out the reasin. createTempFile does this. Switched to new File() and this solved the issue.
I want to send images via email in my android app. For which I'm using Android Native Camera app and Intents to use the respective service. I've used the following code:
Email is getting send but if I'm trying to add image the app gets crash.
public class Complaints extends AppCompatActivity {
Button sendEmail;
EditText to, subject, msg;
Bitmap image;
Button camera;
File pic;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_complaints);
to = (EditText) findViewById(R.id.et1);
subject = (EditText) findViewById(R.id.et2);
msg = (EditText) findViewById(R.id.et3);
sendEmail = (Button) findViewById(R.id.s_Email);
camera = (Button) findViewById(R.id.btn_img);
camera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent=new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(Intent.createChooser(intent,"Select Picture"));
}
});
sendEmail.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String Emailid = to.getText().toString();
String sub = subject.getText().toString();
String message = msg.getText().toString();
Intent email = new Intent(Intent.ACTION_SEND);
email.putExtra(Intent.EXTRA_EMAIL, new String[]{Emailid});
email.putExtra(Intent.EXTRA_SUBJECT, sub);
email.putExtra(Intent.EXTRA_TEXT, message);
email.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//this will make such that when user returns to your app, your app is displayed, instead of the email app.
email.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(pic));
email.setType("message/rfc822");
email.setType("image/jpeg");
try {
startActivity(Intent.createChooser(email, "Message was Sent"));
}
catch (ActivityNotFoundException e) {
Toast t = Toast.makeText(Complaints.this, "There is No Emial Client installed ", Toast.LENGTH_SHORT);
t.setGravity(Gravity.CENTER, 0, 10);
t.show();
}
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 10) {
image = (Bitmap) data.getExtras().get("Data");
ImageView i = (ImageView) findViewById(R.id.img);
i.setImageBitmap(image);
try
{
File root= Environment.getExternalStorageDirectory();
if(root.canWrite())
{
pic=new File(root,"pic.jpeg");
FileOutputStream out=new FileOutputStream(pic);
image.compress(Bitmap.CompressFormat.JPEG,100,out);
out.flush();
out.close();
}
} catch (IOException e)
{
Log.e("BROKEN", "Could not write file " + e.getMessage());
}
}
}
}
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import android.content.ContentValues;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.net.Uri;
import android.provider.MediaStore.Images;
import android.provider.MediaStore.Images.Media;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
public class Complaints extends Activity {
Button send;
Bitmap thumbnail;
File pic;
EditText address, subject, emailtext;
protected static final int CAMERA_PIC_REQUEST = 0;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_complaints);
send=(Button) findViewById(R.id.emailsendbutton);
address=(EditText) findViewById(R.id.emailaddress);
subject=(EditText) findViewById(R.id.emailsubject);
emailtext=(EditText) findViewById(R.id.emailtext);
Button camera = (Button) findViewById(R.id.button1);
camera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0){
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);
}
});
send.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0){
Intent i = new Intent(Intent.ACTION_SEND);
i.putExtra(Intent.EXTRA_EMAIL, new String[]{"dummy#email.com"});
i.putExtra(Intent.EXTRA_SUBJECT,"dummy subject");
//Log.d("URI#!##!#!###!", Uri.fromFile(pic).toString() + " " + pic.exists());
i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(pic));
i.setType("image/png");
startActivity(Intent.createChooser(i,"Share this"));
}
});
}
Getting The Image Path and converting path into Uri :
File photo = new File(Environment.getExternalStorageDirectory()+"/Android/data/"+getApplicationContext().getPackageName()+"/Fault", imagename+".png")
Uri imageuri = Uri.fromFile(photo);
Sending through Email Intent :
Intent send_report = new Intent(Intent.ACTION_SEND);
send_report.putExtra(Intent.EXTRA_EMAIL, new String[]{ email_emailid});
send_report.putExtra(Intent.EXTRA_SUBJECT, email_subject);
send_report.putExtra(Intent.EXTRA_STREAM, imageuri);
send_report.putExtra(Intent.EXTRA_TEXT, email_body);
send_report.setType("text/plain");
send_report.setType("image/png");
startActivityForResult(Intent.createChooser(send_report, "Choose an Email client"), 77);
I'm trying to a link to the Facebook application. If it doesn't exist, it should go to Facebook in the browser.
The problem is, when I click on the button that goes there it gives me this error:
Unfortunately, A has stopped
I couldn't figure what to do with #SuppressWarnings("null") and uri = null.
Help.
package com.example.a;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.widget.Button;
import android.view.View;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
Button dadclink;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
public void addListenerOnButton() {
dadclink = (Button) findViewById(R.id.dadclink);
dadclink.setOnClickListener(new OnClickListener() {
#SuppressWarnings("null")
#Override
public void onClick(View arg0) {
String uri = null;
if (!uri.contains("https://www.facebook.com/")) {
String natgeo = "natgeo";
String uri1 = "fb://Page/" + natgeo;
Intent intent = new Intent(Intent.ACTION_VIEW, Uri
.parse(uri1));
startActivity(intent);
} else {
String natgeo = "natgeo";
String uri1 = "https://www.facebook.com/" + natgeo;
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(uri1));
startActivity(i);
}
}
});
}
}
Edited
package com.example.a;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.widget.Button;
import android.view.View;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
Button dadclink;
protected String uri;
protected String uri1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
public void addListenerOnButton() {
dadclink = (Button) findViewById(R.id.dadclink);
dadclink.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
if (!uri.contains("https://www.facebook.com/")) {
String natgeo = "natgeo";
String uri = "fb://Page/" + natgeo;
Intent intent = new Intent(Intent.ACTION_VIEW, Uri
.parse(uri));
startActivity(intent);
} else {
String natgeo = "natgeo";
String uri1 = "https://www.facebook.com/" + natgeo;
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(uri1));
startActivity(i);
}
}
});
}
}
Edited again
public void addListenerOnButton() {
dadclink = (Button) findViewById(R.id.dadclink);
dadclink.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
String uri = "";
if (!uri.contains("https://www.facebook.com/")) {
String natgeo = "natgeo";
String uri1 = "fb://Page/" + natgeo;
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri1));
startActivity(intent);
} else {
String natgeo = "natgeo";
String uri1 = "https://www.facebook.com/" + natgeo;
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(uri1));
startActivity(i);
}
}
});
It seems as though you aren't really paying attention to what you are doing. You currently have this:
dadclink.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
if (!uri.contains("https://www.facebook.com/")) {
String natgeo = "natgeo";
String uri = "fb://Page/" + natgeo;
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri));
startActivity(intent);
} else {
String natgeo = "natgeo";
String uri1 = "https://www.facebook.com/" + natgeo;
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(uri1));
startActivity(i);
}
}
});
But you have set your uri string as
protected String uri;
This means that the first time you click, since you haven't set your uri anywhere, you will hit this line
if(!uri.contains("https://www.facebook.com/")){
and you will be trying to do null.contains("https://www.facebook.com/");. But obviously null doesn't support any sort of function calls, in other words null.contains() will cause your app to crash with a NPE.
EDIT
Just because you are getting close but need some help wrapping up, this should be your onClick method
#Override
public void onClick(View arg0) {
String uri = "https://www.facebook.com/natgeo";
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(uri));
startActivity(i);
}
It is as simple as that, you are way over-complicating things.
This class call the camera class which click the photo but on activity result of this class it gives error on line 41.
package com.example.fish;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.widget.ImageView;
import com.non_activity.*;
public class Camera extends Activity
{
ImageView image;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
//setContentView(R.layout.name_image);
image=(ImageView)findViewById(R.id.cameraImage);
Intent in= new Intent(this,com.camera.CameraCall.class);
startActivityForResult(in, 1);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == 1)
{
ImageRotation ri= new ImageRotation();
image.setImageBitmap(ri.getImageOrientation(com.camera.Camera_nonClass.getPath(), 7)); //line 41
}
}
}
This is the actual camera code application which actually clicks the photo from camera
and return the result back to the calling camra class.
package com.camera;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
public class CameraCall extends Activity
{
final private int CAPTURE_IMAGE = 1;
String imgPath=null;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
cameraCheck();
}
private void cameraCheck()
{
Context context=CameraCall.this;
PackageManager packageManager = context.getPackageManager();
if (packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA))
{
//yes
captureImage();
}else{
//no
finish();
}
}
/******************************************** Camera Function Implementation*******************************************/
/*
* Capturing Camera Image will lauch camera app requrest image capture
*/
private void captureImage()
{
final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, setImageUri());
startActivityForResult(intent, CAPTURE_IMAGE);
}
public Uri setImageUri()
{
File mediaFile=null;
File mediaStorageDir = new File("/sdcard/Fish/");
if (mediaStorageDir.exists()==false)
{
Boolean b=mediaStorageDir.mkdirs();
if(b==false)
return null;
}
if(mediaStorageDir.exists()==true)
{
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",Locale.getDefault()).format(new Date());
mediaFile = new File(mediaStorageDir.getPath() + File.separator+ "IMG_" + timeStamp + ".PNG");
}
Uri imgUri = Uri.fromFile(mediaFile);
this.imgPath = mediaFile.getAbsolutePath();
com.camera.Camera_nonClass.setPath(this.imgPath);
Log.e("image path 1122:-", this.imgPath+"");
return imgUri;
}
public String getImagePath()
{
return imgPath;
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (resultCode != Activity.RESULT_CANCELED)
{
if (requestCode == CAPTURE_IMAGE)
{
com.camera.Camera_nonClass.setPath(getImagePath());
Log.e("image path 11:-",com.camera.Camera_nonClass.getPath()+"");
finish();
}
{
super.onActivityResult(requestCode, resultCode, data);
}
}
}
}
This is the file which store the path of image taken from camra.
package com.camera;
public class Camera_nonClass
{
static String path;
public static String getPath() {
return path;
}
public static void setPath(String path) {
Camera_nonClass.path = path;
}
}
My app is to open the built in camera and save it into sd card then start a new activity and preview the captured image on it.
This is the loginActivity that start a new AsynTask to open the camera :
package com.android.grad;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;
import com.Camera.R;
public class LoginActivity extends Activity {
private final int MEDIA_TYPE_IMAGE = 1;
private CheckBox rememberMe;
private EditText userName, passWord;
private Button loginBtn;
private final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
private String path;
private Uri fileUri;
private OnClickListener loginOnClick = new OnClickListener() {
public void onClick(View v) {
new LoginTask(LoginActivity.this, fileUri).execute();
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
path = fileUri.getPath();
loginBtn = (Button) findViewById(R.id.signInBtn);
loginBtn.setOnClickListener(loginOnClick);
rememberMe = (CheckBox) findViewById(R.id.keepMe);
userName = (EditText) findViewById(R.id.userNameID);
passWord = (EditText) findViewById(R.id.passwordID);
}
#Override
protected void onResume() {
super.onResume();
SharedPreferences sp = getSharedPreferences("user", MODE_PRIVATE);
try {
userName.setText(sp.getString("username", ""));
passWord.setText(sp.getString("password", ""));
rememberMe.setChecked(sp.getBoolean("rememberMe", false));
} catch (ClassCastException ex) {
}
}
#Override
protected void onPause() {
super.onPause();
SharedPreferences sp = getSharedPreferences("user", MODE_PRIVATE);
Editor editor = sp.edit();
if (rememberMe.isChecked()) {
editor.putString("username", userName.getText().toString());
editor.putString("password", passWord.getText().toString());
} else {
editor.putString("username", "");
editor.putString("password", "");
}
editor.putBoolean("rememberMe", rememberMe.isChecked());
editor.commit();
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
Intent intent = new Intent(LoginActivity.this,
PreviewActivity.class);
intent.putExtra("path", path);
startActivity(intent);
} else if (resultCode == RESULT_CANCELED) {
// User cancelled the image capture
Toast.makeText(getApplicationContext(),
"User cancelled the image capture", Toast.LENGTH_LONG)
.show();
} else {
// Image capture failed, advise user
}
}
}
/** Create a file Uri for saving an image or video */
private Uri getOutputMediaFileUri(int type) {
File f = getOutputMediaFile(type);
if (f == null) {
Toast.makeText(LoginActivity.this, "MyCameraApp File not found",
Toast.LENGTH_LONG);
return null;
}
return Uri.fromFile(f);
}
/** Create a File for saving an image or video */
private File getOutputMediaFile(int type) {
// Check if SD card is mounted
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
File externalFilesDir = LoginActivity.this
.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File outFile = new File(externalFilesDir, "IDOCR");
if (!outFile.exists())
outFile.mkdirs();
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(new Date());
String path = outFile.getPath() + File.separator + "IMG"
+ timeStamp + ".jpg";
File mediaFile = new File(path);
return mediaFile;
}
Toast.makeText(LoginActivity.this, "SD card unmounted",
Toast.LENGTH_LONG);
return null;
}
}
And this is the AsynTask :-
package com.android.grad;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.MediaStore;
public class LoginTask extends AsyncTask<Void, Void, Boolean> {
private Activity activity;
private ProgressDialog pd;
private Uri fileUri;
private final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
public LoginTask(Activity activity, Uri fileUri) {
this.activity = activity;
this.fileUri = fileUri;
}
#Override
protected void onPreExecute() {
pd = ProgressDialog.show(activity, "Signing in",
"Please wait while we are signing you in..");
}
#Override
protected Boolean doInBackground(Void... arg0) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
return true;
}
#Override
protected void onPostExecute(Boolean result) {
pd.dismiss();
pd = null;
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
activity.startActivityForResult(intent,
CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}
}
and this is the previewActivity:-
package com.android.grad;
import java.io.File;
import java.io.IOException;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import com.Camera.R;
import com.OCR.ID.AndroidImage;
import com.OCR.ID.Segement;
public class PreviewActivity extends Activity {
private ImageView previewIV;
private final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
private String path;
private boolean crop = true;
private boolean resample = true;
private ProgressDialog pd;
OnClickListener processOnClickListener = new OnClickListener() {
public void onClick(View v) {
try {
createProgressDialog();
pd.show();
new Segement(PreviewActivity.this, pd).execute(path);
} catch (IOException e) {
}
}
};
private void createProgressDialog() {
pd = new ProgressDialog(PreviewActivity.this);
pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pd.setTitle("Extract ID");
pd.setMessage("Processing...");
pd.setIcon(R.drawable.ic_launcher);
pd.setProgress(0);
pd.setCancelable(false);
}
private OnClickListener backOnClickListener = new OnClickListener() {
public void onClick(View v) {
startActivityForResult(
new Intent(MediaStore.ACTION_IMAGE_CAPTURE).putExtra(
MediaStore.EXTRA_OUTPUT,
Uri.fromFile(new File(path))),
CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}
};
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
previewIV.setImageBitmap(BitmapFactory.decodeFile(path));
}
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.preview);
path = getIntent().getExtras().getString("path");
previewIV = (ImageView) findViewById(R.id.previewPicID);
previewIV.setImageBitmap(AndroidImage.decodeSampledBitmapFromSDcard(
path, 150, 150));
// previewIV.setImageBitmap(AndroidImage.readImage(path));
Button process = (Button) findViewById(R.id.processID);
process.setOnClickListener(processOnClickListener);
Button back = (Button) findViewById(R.id.back);
back.setOnClickListener(backOnClickListener);
}
}
The error that appear that sometimes when take picture it appear in the previewActivity and
sometime doesn't appear ?
Why that error
??