从画廊中挑选的图像没有设置在图像视图中

Question

我正在制作按钮和图像视图，如果我单击按钮，我想显示3个选项，从图库中选择图片，拍照并取消。选择图像后，它应该替换图像视图，但是当我从画廊中选择图像时，它不会替换图像视图，当我选择拍照时，我的应用程序会停止并给出错误：

{fileuriexposedexception：file：///storage/emulation/0/temp.jpg通过clipdata.item.geturi(("}

我正在附加我在按钮上打电话给我的功能。

// function to choose profile image
    private void selectImage() {
        final CharSequence[] options = { "Take Photo", "Choose from Gallery","Cancel" };
        AlertDialog.Builder builder = new AlertDialog.Builder(student_form.this);
        builder.setTitle("Add Photo!");
        builder.setItems(options, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int item) {
                if (options[item].equals("Take Photo"))
                {
                    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    File f = new File(android.os.Environment.getExternalStorageDirectory(), "temp.jpg");
                    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
                    startActivityForResult(intent, 1);
                }
                else if (options[item].equals("Choose from Gallery"))
                {
                    Intent intent = new   Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                    startActivityForResult(intent, 2);
                }
                else if (options[item].equals("Cancel")) {
                    dialog.dismiss();
                }
            }
        });
        builder.show();
    }
    @SuppressLint("LongLogTag")
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK) {
            if (requestCode == 1) {
                File f = new File(Environment.getExternalStorageDirectory().toString());
                for (File temp : f.listFiles()) {
                    if (temp.getName().equals("temp.jpg")) {
                        f = temp;
                        break;
                    }
                }
                try {
                    Bitmap bitmap;
                    BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
                    bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),
                            bitmapOptions);
                    imageview.setImageBitmap(bitmap);
                    String path = android.os.Environment
                            .getExternalStorageDirectory()
                            + File.separator
                            + "Phoenix" + File.separator + "default";
                    f.delete();
                    OutputStream outFile = null;
                    File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
                    try {
                        outFile = new FileOutputStream(file);
                        bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
                        outFile.flush();
                        outFile.close();
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } else if (requestCode == 2) {
                Uri selectedImage = data.getData();
                String[] filePath = { MediaStore.Images.Media.DATA };
                Cursor c = getContentResolver().query(selectedImage,filePath, null, null, null);
                c.moveToFirst();
                int columnIndex = c.getColumnIndex(filePath[0]);
                String picturePath = c.getString(columnIndex);
                c.close();
                Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
                Log.w("path of image from gallery......******************.........", picturePath+"");
                imageview.setImageBitmap(thumbnail);
            }
        }
    }

Answer 1

我找到了该问题的解决方案，现在我可以通过相机和画廊将图像设置为ImageView，我需要做的就是添加API23 实时许可，更改上述代码中的selectimage((代码。

private void selectImage() {
    final CharSequence[] options = { "Take Photo", "Choose from Gallery","Cancel" };
    AlertDialog.Builder builder = new AlertDialog.Builder(student_form.this);
    builder.setTitle("Add Photo!");
    builder.setItems(options, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int item) {
            if (options[item].equals("Take Photo"))
            {
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent, 1);
            }
            else if (options[item].equals("Choose from Gallery"))
            {
                Intent intent = new   Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                startActivityForResult(intent, 2);
            }
            else if (options[item].equals("Cancel")) {
                dialog.dismiss();
            }
        }
    });
    builder.show();
}
@SuppressLint("LongLogTag")
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if (requestCode == 1) {
            Bitmap bitmap = (Bitmap) data.getExtras().get("data");
            imageview.setImageBitmap(bitmap);
        }
        } else if (requestCode == 2) {

            String[] galleryPermissions = {Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE};
            if (EasyPermissions.hasPermissions(this, galleryPermissions)) {
                Uri selectedImage = data.getData();
                String[] filePath = { MediaStore.Images.Media.DATA };
                Cursor c = getContentResolver().query(selectedImage,filePath, null, null, null);
                c.moveToFirst();
                int columnIndex = c.getColumnIndex(filePath[0]);
                String picturePath = c.getString(columnIndex);
                c.close();
                Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
                imageview.setImageBitmap(thumbnail);
            } else {
                EasyPermissions.requestPermissions(this, "Access for storage",
                        101, galleryPermissions);
            }

        }
    }

在最后一个卷发支架上方的末尾添加以下代码，这是检查相机的实时权限

 public void EnableRuntimePermission(){
    final int RequestPermissionCode  = 1 ;
    if (ActivityCompat.shouldShowRequestPermissionRationale(student_form.this,
            Manifest.permission.CAMERA))
    {
        Toast.makeText(student_form.this,"CAMERA permission allows us to Access CAMERA app", Toast.LENGTH_LONG).show();
    } else {
        ActivityCompat.requestPermissions(student_form.this,new String[]{
                Manifest.permission.CAMERA}, RequestPermissionCode);
    }
}
@Override
public void onRequestPermissionsResult(int RC, String per[], int[] PResult) {
    final int RequestPermissionCode  = 1 ;
    switch (RC) {
        case RequestPermissionCode:
            if (PResult.length > 0 && PResult[0] == PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(student_form.this,"Permission Granted, Now your application can access CAMERA.", Toast.LENGTH_LONG).show();
            } else {
                Toast.makeText(student_form.this,"Permission Canceled, Now your application cannot access CAMERA.", Toast.LENGTH_LONG).show();
            }
            break;
    }
}

也不要忘记致电方法enableRuntimePermission((;初始变量开始时。

Answer 2

从Android中检查此示例：

https://developer.android.com/training/camera/photobasics.html

基本上您需要立即使用fileprovider。

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
            ...
        }
        // Continue only if the File was successfully created
        if (photoFile != null) {
            Uri photoURI = FileProvider.getUriForFile(this,
                                                  "com.example.android.fileprovider",
                                                  photoFile);
            takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
            startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
        }
    }
}

应用清单

<application>
   ...
   <provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="com.example.android.fileprovider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/file_paths"></meta-data>
    </provider>
    ...
</application>

file_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="my_images" path="Android/data/com.example.package.name/files/Pictures" />
</paths>