Android 相机和照片选择器意图

Question

我正在构建 android 应用程序，其中一项功能是从图库或相机中拍照。我在使其适用于所有设备时遇到问题。我无法为每个 android 版本和每个设备找到合适的解决方案。我觉得我已经在整个互联网上搜索并尝试了我找到的每一个代码，但没有成功地让它适用于提到的所有内容。我已经尝试从官方 android 文档中实现代码，但同样的问题。从画廊中挑选似乎可行，但相机根本无法正常工作。有人可以给我提示，link 或代码怎么做吗？试图做到这一点，我真的失去了神经。我是 android...

的新手

我需要两个意图，画廊和相机。

Answer 1

public String getPathFromURI(Uri contentUri) {
    String res = null;
    String[] proj = {MediaStore.Images.Media.DATA};
    Cursor cursor = getActivity().getContentResolver().query(contentUri, proj, "", null, "");
    if (cursor.moveToFirst()) {
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        res = cursor.getString(column_index);
    }
    cursor.close();
    return res;
}


@Override
public void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {
    super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
    if (resultCode == getActivity().RESULT_OK) {
        if (requestCode == 200) {
            Uri selectedImageUri = imageReturnedIntent.getData();
            if (null != selectedImageUri) {
                String path = getPathFromURI(selectedImageUri);
                DrawerAdapter.imageViewPP.setImageURI(selectedImageUri);
            }
        }else if(requestCode==0){
            Uri selectedImageUri = imageReturnedIntent.getData();
            if (null != selectedImageUri) {
                String path = getPathFromURI(selectedImageUri);
                //DrawerAdapter.imageViewPP.setImageURI(selectedImageUri);
            }
        }
    }
}

    public String getPathFromURI(Uri contentUri) {
    String res = null;
    String[] proj = {MediaStore.Images.Media.DATA};
    Cursor cursor = getActivity().getContentResolver().query(contentUri, proj, "", null, "");
    if (cursor.moveToFirst()) {
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        res = cursor.getString(column_index);
    }
    cursor.close();
    return res;
}

Intent intent1 = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), 200);

Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 0);

Answer 2

你可以这样做，

private static final int PICK_FROM_CAMERA = 1;
private static final int PICK_FROM_GALLARY = 2;


 Uri outPutfileUri;

//像 Marshmallow 中的 RunTime Permision os

private static String[] PERMISSIONS_STORAGE = {
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE
    }; 




//Define Button in the Xml file and get them
Button galleryButton= (Button)findViewById(R.id.gallerybutton);
Button cameraButton= (Button)findViewById(R.id.camerabutton);

//Listener's on the button 
galleryButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent galleryIntent = new Intent(Intent.ACTION_PICK,                                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            // Start the Intent
            startActivityForResult(galleryIntent, PICK_FROM_GALLARY);
        }
    });



    cameraButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //Camera permission required for Marshmallow version

                // permission has been granted, continue as usual
                Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                File file = new File(Environment.getExternalStorageDirectory(), "MyPhoto.jpg");
                outPutfileUri = Uri.fromFile(file);
                captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, outPutfileUri);
                startActivityForResult(captureIntent, PICK_FROM_CAMERA);
            }
        }
    });

然后在 ActivityResult 上你会得到图像

 public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        switch (requestCode) {
            case PICK_FROM_CAMERA:
                if (resultCode == Activity.RESULT_OK) {
                    //pic coming from camera
                    Bitmap bitmap=null;
                    try {
                    bitmap = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), outPutfileUri);
                } catch (IOException e) {
                    e.printStackTrace();
                }

                }
            break;

            case PICK_FROM_GALLARY:

                if (resultCode == Activity.RESULT_OK) {
                    //pick image from gallery
                    Uri selectedImage = data.getData();
                    String[] filePathColumn = { MediaStore.Images.Media.DATA };

                    // Get the cursor
                    Cursor cursor = getActivity().getContentResolver().query(selectedImage, filePathColumn, null, null, null);
                    // Move to first row
                    cursor.moveToFirst();

                    int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                    String imgDecodableString = cursor.getString(columnIndex);
                    cursor.close();
                    bitmap = BitmapFactory.decodeFile(imgDecodableString);




                }
            break;
        }
    }

// 对于 Marshmallow 设备

cameraButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //Camera permission required for Marshmallow version
                if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.CAMERA)
                        != PackageManager.PERMISSION_GRANTED) {
                    // Callback onRequestPermissionsResult interceptadona Activity MainActivity
                    ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.CAMERA}, PICK_FROM_CAMERA);
                } else {
                    // permission has been granted, continue as usual
                    Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                    startActivityForResult(captureIntent, PICK_FROM_CAMERA);
                }
            }
        }); 


//Gallery storage permission required for Marshmallow version
    public static void verifyStoragePermissions(Activity activity) {
        // Check if we have write permission
        int permission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);

        if (permission != PackageManager.PERMISSION_GRANTED) {
            // We don't have permission so prompt the user
            ActivityCompat.requestPermissions(
                    activity,
                    PERMISSIONS_STORAGE,
                    REQUEST_EXTERNAL_STORAGE
            );
        }
    }

//对于 Android 7.0 你可以做类似的事情

ContentValues values = new ContentValues(1);
        values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpg");
        outPutfileUri = getActivity().getContentResolver()
                .insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    captureIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION
        | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);

        captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, outPutfileUri);
        startActivityForResult(captureIntent, PICK_FROM_CAMERA);

Answer 3

经过将近半年的时间，我找到了解决办法。实际上，我找到了一个适用于每个 phone 和每个 android 版本的库。如果仍然有人需要解决方案，这里有一个答案。

EasyImage 做到了！

Android 相机和照片选择器意图

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