我试图从许多不同的链接解决这个问题，但对我没有用。我正在使用Android Image Cropper库来裁剪图像。每当我点击“上传图片”按钮时，它就会开始裁剪活动，当我完成时，裁剪后的图像会在“上传图片”活动的图片视图中设置，点击“继续”按钮后登录成功，我将被指示登录活动，但当我回来按登录活动时，“上传图片”活动仍在那里，并没有被销毁。我有另一个名为Update Activity的活动，它使用此Cropping活动，该活动也以相同的方式运行。所以我想要“上传图片”来销毁。提前致谢
package com.donateblood.blooddonation;
public class CroppingActivity extends AppCompatActivity {
private CropImageView mCropImageView;
public static Bitmap finalImage = null;
public static Bitmap newImage = null;
private Uri mCropImageUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_crop);
mCropImageView = (CropImageView) findViewById(R.id.CropImageView);
}
/**
* On load image button click, start pick image chooser activity.
*/
public void onLoadImageClick(View view) {
startActivityForResult(getPickImageChooserIntent(), 200);
}
public void onSetImageClick(View view) {
if(UpdateActivity.UpdatingPhoto){
newImage = mCropImageView.getCroppedImage(200, 200);
try {
Intent intent = new Intent(getApplicationContext(), UpdateActivity.class);
startActivity(intent);
finish();
} catch (Exception e) {
Toast.makeText(CroppingActivity.this, "Oppss..Error occured.", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}else {
finalImage = mCropImageView.getCroppedImage(200, 200);
try {
Intent intent = new Intent(getApplicationContext(), UploadImage.class);
startActivity(intent);
finish();
} catch (Exception e) {
Toast.makeText(CroppingActivity.this, "Oppss..Error occured.", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
}
/**
* Crop the image and set it back to the cropping view.
*/
public void onCropImageClick(View view) {
Bitmap cropped = mCropImageView.getCroppedImage(500, 500);
if (cropped != null)
mCropImageView.setImageBitmap(cropped);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
Uri imageUri = getPickImageResultUri(data);
// For API >= 23 we need to check specifically that we have permissions to read external storage,
// but we don't know if we need to for the URI so the simplest is to try open the stream and see if we get error.
boolean requirePermissions = false;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M &&
checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED &&
isUriRequiresPermissions(imageUri)) {
// request permissions and handle the result in onRequestPermissionsResult()
requirePermissions = true;
mCropImageUri = imageUri;
requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 0);
}
if (!requirePermissions) {
mCropImageView.setImageUriAsync(imageUri);
}
}
}
@Override
public void onBackPressed() {
UpdateActivity.UpdatingPhoto = false;
super.onBackPressed();
finish();
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
if (mCropImageUri != null && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
mCropImageView.setImageUriAsync(mCropImageUri);
} else {
Toast.makeText(this, "Required permissions are not granted", Toast.LENGTH_LONG).show();
}
}
/**
* Create a chooser intent to select the source to get image from.<br/>
* The source can be camera's (ACTION_IMAGE_CAPTURE) or gallery's (ACTION_GET_CONTENT).<br/>
* All possible sources are added to the intent chooser.
*/
public Intent getPickImageChooserIntent() {
// Determine Uri of camera image to save.
Uri outputFileUri = getCaptureImageOutputUri();
List<Intent> allIntents = new ArrayList<>();
PackageManager packageManager = getPackageManager();
// collect all camera intents
Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
for (ResolveInfo res : listCam) {
Intent intent = new Intent(captureIntent);
intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
intent.setPackage(res.activityInfo.packageName);
if (outputFileUri != null) {
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
}
allIntents.add(intent);
}
// collect all gallery intents
Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
galleryIntent.setType("image/*");
List<ResolveInfo> listGallery = packageManager.queryIntentActivities(galleryIntent, 0);
for (ResolveInfo res : listGallery) {
Intent intent = new Intent(galleryIntent);
intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
intent.setPackage(res.activityInfo.packageName);
allIntents.add(intent);
}
// the main intent is the last in the list (Foolish android) so pickup the useless one
Intent mainIntent = allIntents.get(allIntents.size() - 1);
for (Intent intent : allIntents) {
if (intent.getComponent().getClassName().equals("com.android.documentsui.DocumentsActivity")) {
mainIntent = intent;
break;
}
}
allIntents.remove(mainIntent);
// Create a chooser from the main intent
Intent chooserIntent = Intent.createChooser(mainIntent, "Select source");
// Add all other intents
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, allIntents.toArray(new Parcelable[allIntents.size()]));
return chooserIntent;
}
/**
* Get URI to image received from capture by camera.
*/
private Uri getCaptureImageOutputUri() {
Uri outputFileUri = null;
File getImage = getExternalCacheDir();
if (getImage != null) {
outputFileUri = Uri.fromFile(new File(getImage.getPath(), "pickImageResult.jpeg"));
}
return outputFileUri;
}
/**
* Get the URI of the selected image from {@link #getPickImageChooserIntent()}.<br/>
* Will return the correct URI for camera and gallery image.
*
* @param data the returned data of the activity result
*/
public Uri getPickImageResultUri(Intent data) {
boolean isCamera = true;
if (data != null && data.getData() != null) {
String action = data.getAction();
isCamera = action != null && action.equals(MediaStore.ACTION_IMAGE_CAPTURE);
}
return isCamera ? getCaptureImageOutputUri() : data.getData();
}
/**
* Test if we can open the given Android URI to test if permission required error is thrown.<br>
*/
public boolean isUriRequiresPermissions(Uri uri) {
try {
ContentResolver resolver = getContentResolver();
InputStream stream = resolver.openInputStream(uri);
stream.close();
return false;
} catch (FileNotFoundException e) {
if (e.getCause() instanceof ErrnoException) {
return true;
}
} catch (Exception e) {
}
return false;
}
}package com.donateblood.blooddonation;
public double longitude;
@Override
public void onBackPressed() {
super.onBackPressed();
finish();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.uploadimage);
code = (EditText) findViewById(R.id.code);
ButterKnife.inject(this);
myimage = CroppingActivity.finalImage;
CheckImage();
// Upload image ====================================
Btn_Upload.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(), CroppingActivity.class);
startActivity(intent);
}
});
Btn_Proceed.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(code.length()==0){
Toast.makeText(getBaseContext(), "Enter verification code", Toast.LENGTH_LONG).show();
}
else {
Prcoess();
}
}
});
}
public void CheckImage(){
if(myimage!=null){
// set the image
// myimage = getRoundedShape(myimage);
Uri uri = getImageUri(myimage);
String url = getRealPathFromURI(uri);
File file = new File(url);
Picasso.with(UploadImage.this).load(file).resize(200,200).placeholder(R.drawable.user).error(R.drawable.error)
.transform(new CircleTransform()).centerCrop()
.into(ImageUpload);
}else {
encodedPhotoString= null;
}
}
@Override
public void onDestroy() {
super.onDestroy();
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
public String getRealPathFromURI(Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = { MediaStore.Images.Media.DATA };
cursor = UploadImage.this.getContentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
public Uri getImageUri( Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(UploadImage.this.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}
// Processing and adding user to database from here ====================================
public void Prcoess(){
String userentered=code.getText().toString();
String sentcode = SignupActivity.Code;
// resize the image to store to database
//myimage= getResizedBitmap(myimage,200,200);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
myimage.compress(Bitmap.CompressFormat.JPEG, 50, stream);
byte[] byte_arr = stream.toByteArray();
encodedPhotoString = Base64.encodeToString(byte_arr, 0);
if(userentered.equals(sentcode) && encodedPhotoString!=null ){
new AddUserAsync().execute();
}
else {
Toast.makeText(getBaseContext(), "Wrong code or No image uploaded", Toast.LENGTH_LONG).show();
}
}
public class AddUserAsync extends AsyncTask<Void,Void,Void> {
JSONObject json =null;
boolean added = false;
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(UploadImage.this);
pDialog.setMessage("Creating Account...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... voids) {
GetUserDetails();
GenerateGCMID();
email= email.trim().toLowerCase();
HashMap<String ,String> userDetails = new HashMap<>();
latitude = GPSTracker.getLatitude();
longitude = GPSTracker.getLongitude();
userDetails.put("ID",ID);
userDetails.put("Name",name);
userDetails.put("email",email);
userDetails.put("password",password);
userDetails.put("age",age);
userDetails.put("number",number);
userDetails.put("bloodgroup",bloodgroup);
userDetails.put("lat",latitude+"");
userDetails.put("longi",longitude+"");
userDetails.put("image",encodedPhotoString);
json = new HttpCall().postForJSON("http://abdulbasit.website/blood_app/Adduser.php",userDetails);
if(json!=null){
added = true;
}else {
added = false;
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
pDialog.dismiss();
if(added==true){
Toast.makeText(getBaseContext(), "Created Successfully", Toast.LENGTH_LONG).show();
onSignupSuccess();
}else {
Toast.makeText(getBaseContext(), "Error creating account. Try again", Toast.LENGTH_LONG).show();
}
}
}
public void GenerateGCMID(){
GCMClientManager pushClientManager = new GCMClientManager(this, "921544902369");
pushClientManager.registerIfNeeded(new GCMClientManager.RegistrationCompletedHandler() {
@Override
public void onSuccess(String registrationId, boolean isNewRegistration) {
Log.d("Registration id", registrationId);
ID = registrationId;
Log.e("reg",ID);
}
@Override
public void onFailure(String ex) {
super.onFailure(ex);
}
});
}
// Go to another activity on success ====================================
public void onSignupSuccess() {
// stop the service we got the latitude and longitude now
stopService(new Intent(this, GPSTracker.class));
Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
startActivity(intent);
finish();
}
// fetch user details ====================================
public void GetUserDetails(){
bloodgroup = SignupActivity.bloodgroup.toString();
name = SignupActivity.name.toString();
email = SignupActivity.email.toString();
password = SignupActivity.password.toString();
number = SignupActivity.number.toString();
age = SignupActivity.age.toString();
}
// Resize the image ====================================
public Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth)
{
int width = bm.getWidth();
int height = bm.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
// create a matrix for the manipulation
Matrix matrix = new Matrix();
// resize the bit map
matrix.postScale(scaleWidth, scaleHeight);
// recreate the new Bitmap
Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);
return resizedBitmap;
}
}
答案 0 :(得分：0)
检查此方法您没有在此处完成UploadActivity： -
Btn_Upload.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(), CroppingActivity.class);
startActivity(intent);
UploadActivity.this.finish();
}
});