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I'm a new android developer and trying to make image to text app. I watched some tutorials and pretty sure that i don't make any mistakes. I'm using ML Kit for this project and got error when i tried to convert the image to text.
My main activity
package com.gorkemtand.textrecognition;
import androidx.activity.result.ActivityResult;
import androidx.activity.result.ActivityResultCallback;
import androidx.activity.result.ActivityResultLauncher;
import androidx.activity.result.contract.ActivityResultContract;
import androidx.activity.result.contract.ActivityResultContracts;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.ContentValues;
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;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.PopupMenu;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.android.material.button.MaterialButton;
import com.google.android.material.imageview.ShapeableImageView;
import com.google.mlkit.vision.common.InputImage;
import com.google.mlkit.vision.text.Text;
import com.google.mlkit.vision.text.TextRecognition;
import com.google.mlkit.vision.text.TextRecognizer;
import com.google.mlkit.vision.text.latin.TextRecognizerOptions;
import java.io.IOException;
import java.security.Permission;
public class MainActivity extends AppCompatActivity {
private MaterialButton inputImageBtn;
private MaterialButton recognizeTextBtn;
private ShapeableImageView imageIv;
private EditText recognizedTextEt;
private static final String TAG = "MAIN_TAG";
private Uri imageUri = null;
//to handle the result of Camere/Gallery permissions
private static final int CAMERA_REQUEST_CODE = 100;
private static final int STORAGE_REQUEST_CODE = 101;
//arrays of permission required to pick image from Camera,gallery
private String[] cameraPermissions;
private String[] storagePermissions;
private ProgressDialog progressDialog;
private TextRecognizer textRecognizer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inputImageBtn = findViewById(R.id.inputImageBtn);
recognizeTextBtn = findViewById(R.id.recognizeBtn);
imageIv = findViewById(R.id.imageIv);
recognizedTextEt = findViewById(R.id.recognizedTextEd);
cameraPermissions = new String[] {Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE};
storagePermissions = new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE};
progressDialog = new ProgressDialog(this);
progressDialog.setTitle("Please Wait");
progressDialog.setCanceledOnTouchOutside(false);
textRecognizer = TextRecognition.getClient(TextRecognizerOptions.DEFAULT_OPTIONS);
inputImageBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
showInputImageDialog();
}
});
recognizeTextBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(imageUri == null){
Toast.makeText(MainActivity.this,"Pick image first...",Toast.LENGTH_SHORT).show();
}
else {
recognizeTextFromImage();
}
}
});
}
private void recognizeTextFromImage() {
Log.d(TAG, "recognizeTextFromImage: ");
progressDialog.setMessage("Preparing image...");
progressDialog.show();
try {
InputImage inputImage = InputImage.fromFilePath(this,imageUri);
progressDialog.setMessage("Recognizing text...");
Task<Text> textTaskResult = textRecognizer.process(inputImage).addOnSuccessListener(new OnSuccessListener<Text>() {
#Override
public void onSuccess(Text text) {
progressDialog.dismiss();
String recognizedText = text.getText();
Log.d(TAG, "onSuccess: recognizedText: "+recognizedText);
recognizedTextEt.setText(recognizedText);
}
})
.addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
progressDialog.dismiss();
Log.e(TAG, "onFailure: ",e);
Toast.makeText(MainActivity.this,"Failed recognizing text due to"+e.getMessage(),Toast.LENGTH_SHORT).show();
}
});
} catch (Exception e) {
progressDialog.dismiss();
Log.e(TAG, "recognizeTextFromImage: ",e);
Toast.makeText(MainActivity.this,"Failed preparing image due to"+e.getMessage(),Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
private void showInputImageDialog() {
PopupMenu popupMenu = new PopupMenu(this, inputImageBtn);
popupMenu.getMenu().add(Menu.NONE,1,1,"CAMERA");
popupMenu.getMenu().add(Menu.NONE,2,2,"GALLERY");
popupMenu.show();
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem item) {
int id = item.getItemId();
if(id == 1){
Log.d(TAG, "onMenuItemClick: Camera Clicked...");
if(checkCameraPermissions()){
pickImageCamera();
}
else{
requestCameraPermissions();
}
}
else if(id == 2){
Log.d(TAG, "onMenuItemClick: Gallery Clicked...");
if(checkStoragePermision()){
pickImageGallery();
}
else{
requestStoragePermission();
}
}
return false;
}
});
}
private void pickImageGallery(){
Log.d(TAG, "pickImageGallery: ");
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
galleryActivityResultLauncher.launch(intent);
}
private ActivityResultLauncher<Intent> galleryActivityResultLauncher = registerForActivityResult(
new ActivityResultContracts.StartActivityForResult(),
new ActivityResultCallback<ActivityResult>() {
#Override
public void onActivityResult(ActivityResult result) {
if(result.getResultCode() == Activity.RESULT_OK){
//image picked
Intent data = result.getData();
imageUri = data.getData();
Log.d(TAG, "onActivityResult: imageUri "+imageUri);
//set to imageview
imageIv.setImageURI(imageUri);
}
else{
Log.d(TAG, "onActivityResult: cancelled");
Toast.makeText(MainActivity.this,"Cancelled...",Toast.LENGTH_SHORT).show();
}
}
}
);
private void pickImageCamera(){
Log.d(TAG, "pickImageCamera: ");
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, "Sample Title");
values.put(MediaStore.Images.Media.DESCRIPTION, "Sample Description");
imageUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,values);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
cameraActivityResultLauncher.launch(intent);
}
private ActivityResultLauncher<Intent> cameraActivityResultLauncher = registerForActivityResult(
new ActivityResultContracts.StartActivityForResult(),
new ActivityResultCallback<ActivityResult>() {
#Override
public void onActivityResult(ActivityResult result) {
if(result.getResultCode() == Activity.RESULT_OK){
Log.d(TAG, "onActivityResult: imageUri "+imageUri);
imageIv.setImageURI(imageUri);
}
else{
Log.d(TAG, "onActivityResult: cancelled");
Toast.makeText(MainActivity.this,"Cancelled", Toast.LENGTH_SHORT).show();
}
}
}
);
private boolean checkStoragePermision(){
boolean result = ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == (PackageManager.PERMISSION_GRANTED);
return result;
}
private void requestStoragePermission(){
ActivityCompat.requestPermissions(this,storagePermissions,STORAGE_REQUEST_CODE);
}
private boolean checkCameraPermissions(){
boolean cameraResult = ContextCompat.checkSelfPermission(this,Manifest.permission.CAMERA) == (PackageManager.PERMISSION_GRANTED);
boolean storafeResult = ContextCompat.checkSelfPermission(this,Manifest.permission.WRITE_EXTERNAL_STORAGE) == (PackageManager.PERMISSION_GRANTED);
return cameraResult && storafeResult;
}
private void requestCameraPermissions(){
ActivityCompat.requestPermissions(this,cameraPermissions, CAMERA_REQUEST_CODE);
}
//handle permission results
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case CAMERA_REQUEST_CODE:{
if (grantResults.length>0){
boolean cameraAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
boolean storageAccepted = grantResults[1] == PackageManager.PERMISSION_GRANTED;
if(cameraAccepted && storageAccepted){
pickImageCamera();
}
else {
Toast.makeText(this, "Camera && Storage permissions are required", Toast.LENGTH_SHORT).show();
}
}
else{
Toast.makeText(this,"Cancelled",Toast.LENGTH_SHORT).show();
}
}
break;
case STORAGE_REQUEST_CODE:{
if(grantResults.length>0){
boolean storageAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
if (storageAccepted) {
pickImageGallery();
}
else {
Toast.makeText(this, "Storage permission is required", Toast.LENGTH_SHORT).show();
}
}
}
break;
}
}
}
Also i implemented these two
implementation 'com.google.android.gms:play-services-mlkit-text-recognition:18.0.2'
implementation 'com.google.android.gms:play-services-mlkit-text-recognition-common:18.0.0'
And give the permissions to manifest:
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
And this is the error i got:
Error
I searched the google and cnat find a solution. If u can help me i will be very happy.
I searched google and can't find anything works.

I solved by implementing com.google.mlkit:text-recognition:16.0.0-beta6

Are you testing on device without play store services? For example on an emulator? In order to use com.google.android.gms:play-services-mlkit-text-recognition:18.0.2 it has to be on a device with play store services.

How to progress into saving the image into SQLiteDatabase

This is where I import the image to(from gallery) and I want to save it to SQLite to hopefully display it in another activity, how would I go about doing so? I am kind of new to Android Studio so if there is some newbie kind of easy way that I would go about doing so would be very helpful.
(Update) So I have added this two lines marked by /* */ but now I can't get my app to work still have no idea how to do this.. any ideas?
Import image>Save to SQLite>Take Image to SQLite>Display in another activity
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
public class DataInput extends AppCompatActivity {
private EditText inputName;
private EditText inputAge;
private Button buttonSave;
private Button buttonGetLocation;
private Button buttonImportImage;
private ImageView mImageView;
private static final int IMAGE_PICK_CODE = 1000;
private static final int PERMISSION_CODE = 1001;
private InputHelper helper = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_data_input);
inputName = (EditText) findViewById(R.id.input_name);
inputAge = (EditText) findViewById(R.id.input_age);
address = (TextView) findViewById(R.id.address);
buttonSave = findViewById(R.id.button_save);
buttonSave.setOnClickListener(onSave);
buttonImportImage = findViewById(R.id.button_import_image);
mImageView = findViewById(R.id.image_view);
buttonImportImage.setOnClickListener(onImport);
helper = new InputHelper(this); }
private View.OnClickListener onSave = new View.OnClickListener() {
#Override
public void onClick(View v) {
String nameStr = inputName.getText().toString();
String ageStr = inputAge.getText().toString();
String addressStr = address.getText().toString();
String combineStr = nameStr + "\n" + ageStr + "\n" + addressStr;
Toast.makeText(v.getContext(), combineStr, Toast.LENGTH_LONG).show();
/*BitmapDrawable drawable = (BitmapDrawable)mImageView.getDrawable();
Bitmap bitmap = drawable.getBitmap();
byte[] image = getBitmapAsByteArray(bitmap);*/
Intent i = new Intent(DataInput.this,InformationDisplay.class);
startActivity(i);
helper.insert(nameStr,ageStr,addressStr,image);
finish();
}
/* public byte[] getBitmapAsByteArray(Bitmap bitmap) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 0, outputStream);
return outputStream.toByteArray(); */
}
};
private View.OnClickListener onImport = new View.OnClickListener() {
#Override
public void onClick(View v) {
//check runtime permission
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_DENIED) {
//permission not granted, request it.
String[] permissions = {Manifest.permission.READ_EXTERNAL_STORAGE};
//show popup for runtime permission
requestPermissions(permissions, PERMISSION_CODE);
} else {
//permission already granted
pickImageFromGallery();
}
} else {
//system os is less then marshmallow
pickImageFromGallery();
}
}
};
private void pickImageFromGallery() {
//intent to pick image
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent, IMAGE_PICK_CODE);
}
//handle result of runtime permission
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case PERMISSION_CODE: {
if (grantResults.length > 0 && grantResults[0] ==
PackageManager.PERMISSION_GRANTED) {
//permission was granted
pickImageFromGallery();
} else {
//permission was denied
Toast.makeText(this, "Permission denied...!", Toast.LENGTH_LONG).show();
}
}
}
}
//handle result of picked image
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK && requestCode == IMAGE_PICK_CODE) {
//set image to image view
mImageView.setImageURI(data.getData());
}
}

You can save an Image in SQLite database in the form of blob. Another simple way to storing the image is in the form of base64 string. This is what I tried in my previous project and this works:
public class Profile_Class extends AppCompatActivity {
private Bitmap photo, OutImage;
private AppPreferences preferences;
private CircularImageView imageView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_profile__class);
EditText name = findViewById(R.id.name);
preferences = new AppPreferences(this);
Toolbar toolbar = findViewById(R.id.toolbar_t);
EditText userName = findViewById(R.id.userName);
EditText passWord = findViewById(R.id.passWord);
imageView = findViewById(R.id.iv_profile_auditor);
ImageView take_pic1 = findViewById(R.id.take_pic1);
if (prefernces.getProfileImage().equals(" ")) {
Log.e("TAG", "NoProfilePic");
} else {
imageView.setImageBitmap(decodeBase64(prefernces.getProfileImage()));
}
take_pic1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
photo = (Bitmap) data.getExtras().get("data");
OutImage = Bitmap.createScaledBitmap(photo, 300, 400, true);
prefernces.setProfileImage(encodeTobase64(OutImage));
Intent intent2 = new Intent("header_pic_update");
LocalBroadcastManager.getInstance(Profile_Class.this).sendBroadcast(intent2);
}
}
// method for bitmap to base64
public static String encodeTobase64(Bitmap image) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] b = baos.toByteArray();
String imageEncoded = Base64.encodeToString(b, Base64.DEFAULT);
Log.d("Image Log:", imageEncoded);
return imageEncoded;
}
// method for base64 to bitmap
public static Bitmap decodeBase64(String input) {
byte[] decodedByte = Base64.decode(input, 0);
return BitmapFactory
.decodeByteArray(decodedByte, 0, decodedByte.length);
}
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
finish();
}
return true;
}
If you see in OnActivityResult class, I'm converting the outImage into Base64 string. Here use the method encodeTobase64 and add the image string to your table.
Now in the other activity where you want to show the image, call the method decodeBase64 and decode the image. In the above code I'm decoding the string to image and setting it to imageview like this:
imageView.setImageBitmap(decodeBase64(prefernces.getProfileImage()));
There are numerous ways to store and retrieve the image. This is one way I did. Mind here that I'm storing the image in bitmap so the quality will not be good. If you want image with full quality than you have to use URI to store the image in your mobile and then call the image in required quality.

No suitable method found for into(Uri)

I want to allow the user to upload two images,Cover and Logo.Then have them saved in firestore.I get an error at
Picasso.get().load(uri).into(Logo); line saying
no suitable method found for into(Uri)
method RequestCreator.into(Target) is not applicable
(argument mismatch; Uri cannot be converted to Target)
method RequestCreator.into(ImageView) is not applicable
(argument mismatch; Uri cannot be converted to ImageView)
package com.example.littlemarketplaceapp;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
import com.squareup.picasso.Picasso;
public class Shop extends AppCompatActivity {
private ImageButton Logoimage;
private ImageButton Cover;
private EditText ShopnameEditText;
private TextView ShowShopName;
private Button SaveButton;
DatabaseReference databaseReference1;
private FirebaseAuth mAuth;
StorageReference storageReference = FirebaseStorage.getInstance().getReference();
StorageReference storageReference1 = FirebaseStorage.getInstance().getReference();
Uri Logo;
Uri coverUri;
private Uri uri;
int coverOrLogo;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shop);
Intent intent = getIntent();
String emaila = intent.getExtras().getString("emaili");
String passworda = intent.getExtras().getString("passwordi");
String fullnamea = intent.getExtras().getString("fullnamei");
String usernamea = intent.getExtras().getString("usernamei");
String mobilea = intent.getExtras().getString("mobilei");
String Shopname;
Logoimage = findViewById(R.id.shoplogobutton);
Cover = findViewById(R.id.coverphotobutton);
ShowShopName = findViewById(R.id.shopname);
ShopnameEditText = findViewById(R.id.shopnameedittext);
Shopname = ShopnameEditText.getText().toString().trim();
String key = databaseReference1.push().getKey();
//Saves Owner's Data
SaveButton.setOnClickListener(v -> {
ForOwner s_owner = new ForOwner(fullnamea, usernamea, emaila, mobilea, passworda, Shopname);
databaseReference1.child(key).setValue(s_owner);
Toast.makeText(getApplicationContext(), "Registration complete", Toast.LENGTH_SHORT).show();
});
//Uploads the Logo
Logoimage.setOnClickListener(view -> {
//open Gallery
Intent openGalleryIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(openGalleryIntent, 1000);
});
//Uploads the Cover photo
Cover.setOnClickListener(view -> {
//open Gallery
Intent openGalleryIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(openGalleryIntent, 2000);
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #androidx.annotation.Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1000 && resultCode == Activity.RESULT_OK) {
Uri imageUri1 = data.getData();
Logoimage.setImageURI(imageUri1);
uploadImageToFirebase(imageUri1, 1);
} else if (requestCode == 2000 && resultCode == Activity.RESULT_OK) {
Uri imageUri2 = data.getData();
Cover.setImageURI(imageUri2);
uploadImageToFirebase(imageUri2, 0);
}
}
//}
private <final_fileRef> void uploadImageToFirebase(Uri imageUri1, int coverOrLogo) {
//upload image to firebase
StorageReference fileRef = null;
if (coverOrLogo == 1) {
fileRef = storageReference.child("logo.jpg");
} else if (coverOrLogo == 0) {
fileRef = storageReference.child("cover.jpg");
}
fileRef.putFile(imageUri1).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
fileRef.putFile(imageUri1).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
public void onSuccess(Uri uri) {
if (coverOrLogo == 1) {
Picasso.get().load(uri).into(Logo);
}
if (coverOrLogo == 0) {
Picasso.get().load(uri).into(Cover);
}
}
});
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Toast.makeText(Shop.this, "Failed", Toast.LENGTH_SHORT).show();
}
});
}
}

In your code Logo is Uri
You need this:
Picasso.get().load(uri).into(imageView);
where imageView is ImageView object in your layout

I have the following code for taking pictures, I need to know how to take video and also put a permission class for taking pictures

This first part are simple imports, not really relevant to my question.
details details android studio
much details, such wow
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
Declaration of class
public class MainActivity extends Activity {
Variables being declared
private final static int TAKE_PICTURE = 0;
private final static int SAVE_PICTURE = 1;
private final static int TAKE_VIDEO = 2;
private final static int STORAGE_PERMISSION = 3;
private ImageView iv;
private VideoView vv;
private MediaController mc;
private String lastURI;
Basic create method, nothing special here
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = (ImageView)findViewById(R.id.imageView);
vv = (VideoView)findViewById(R.id.videoView);
mc = new MediaController(this);
mc.setMediaPlayer(vv);
vv.setMediaController(mc);
}
Method that takes picture
public void takePicture(View v){
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if(intent.resolveActivity(getPackageManager()) != null){
startActivityForResult(intent, TAKE_PICTURE);
}
}
Method that saves picture
public void savePicture(View v){
Log.i("SAVE PICTURE", "save");
if(Build.VERSION.SDK_INT >= 23 &&
checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED){
// request permission!
Log.i("SAVE PICTURE", "asking permission");
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, STORAGE_PERMISSION);
} else {
savePicturePermitted();
}
}
Main method
protected void onActivityResult(int requestCode, int resultCode, Intent data){
Log.wtf("RETURN", requestCode + "");
if(resultCode == Activity.RESULT_OK){
Test cases
switch(requestCode){
case TAKE_PICTURE:
Bundle extra = data.getExtras();
Bitmap image = (Bitmap)extra.get("data");
iv.setImageBitmap(image);
break;
}
}
}
}

It looks like what you have to do is the following:
For the permission part use this:
private void savePicturePermitted(){
// the actual code
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if(intent.resolveActivity(getPackageManager()) != null){
File photo = null;
try{
String time = new SimpleDateFormat("yyyyMMdd-HHmmss").format(new Date());
String name = "GUYZ_" + time;
File directory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
photo = File.createTempFile(name, ".jpg", directory);
// keep track of the URI
lastURI = photo.getAbsolutePath();
}catch(IOException ioe){
ioe.printStackTrace();
}
if(photo != null){
//intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo));
intent.putExtra(MediaStore.EXTRA_OUTPUT, FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID + ".provider", photo));
startActivityForResult(intent, SAVE_PICTURE);
}
}
}
Also add a result or feedback so the user knows what's up, this could be done like so:
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if(requestCode == STORAGE_PERMISSION && grantResults[0] == PackageManager.PERMISSION_GRANTED){
savePicturePermitted();
} else {
Toast.makeText(this, "Permission required", Toast.LENGTH_SHORT).show();
}
}
For taking video, the method looks like this:
public void takeVideo(View v){
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
if(intent.resolveActivity(getPackageManager()) != null){
startActivityForResult(intent, TAKE_VIDEO);
}
}
Finally, I suggest you add all of these to your test cases so you can test they work. This is how that should look like:
case TAKE_VIDEO:
Uri video = data.getData();
vv.setVideoURI(video);
vv.start();
break;
Noticed you missed a save picture use case:
case SAVE_PICTURE:
Log.wtf("SAVING PICTURE", lastURI);
Bitmap image2 = BitmapFactory.decodeFile(lastURI);
iv.setImageBitmap(image2);
break;

Also I noticed that you were missing some imports, these should appear automatically, but in case they don't, here's what those should be:
import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.MediaController;
import android.widget.Toast;
import android.widget.VideoView;

Bluetooth application

I am making bluetooth application in which I want to send data using bluetooth. That task I am able to do. But after that I want open any particular file from device. Then How can I do it? I have written the code below.
package com.example.blue;
import java.io.File;
import java.util.List;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.webkit.MimeTypeMap;
import android.widget.Toast;
public class MainActivity extends Activity {
private static final int DISCOVER_DURATION=300;
private static final int REQUEST_BLU=1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String path="/storage/emulated/0/DCIM/Camera/20141018_152852.jpg";
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_VIEW);
File file = new File(path);
MimeTypeMap mime = MimeTypeMap.getSingleton();
String ext=file.getName().substring(file.getName().indexOf(".")+1);
String type = mime.getMimeTypeFromExtension(ext);
intent.setDataAndType(Uri.fromFile(file),type);
startActivity(intent);
}
public void sendViaBluetooth(View v){
BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();
if (btAdapter == null)
{
Toast.makeText(this,"Bluetooth not supported" , Toast.LENGTH_LONG).show();
}else
{
enableBluetooth();
}
}
public void enableBluetooth(){
Intent discoveryIntent= new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoveryIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, DISCOVER_DURATION);
startActivityForResult(discoveryIntent, REQUEST_BLU);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(resultCode == DISCOVER_DURATION && requestCode == REQUEST_BLU)
{
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND);
intent.setType("text/plain");
File f = new File(Environment.getExternalStorageDirectory(),"md5sum.txt");
intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(f));
PackageManager pm = getPackageManager();
List<ResolveInfo> appsList = pm.queryIntentActivities(intent, 0);
if(appsList.size()>0)
{
String packageName = null;
String className = null;
boolean found = false;
for(ResolveInfo info : appsList)
{
packageName = info.activityInfo.packageName;
if(packageName.equals("com.android.bluetooth"))
{
className = info.activityInfo.name;
found = true;
break;
}
}
if(!found){
Toast.makeText(this,"Bluetooth haven't been found" , Toast.LENGTH_LONG).show();
}else
{
intent.setClassName(packageName, className);
startActivity(intent);
}
}
}else{
Toast.makeText(this,"Bluetooth is cancelled" , Toast.LENGTH_LONG).show();
}
}
}