Android 如何配置ACTION_IMAGE_CAPTURE将照片存储在公共外部存储器中？_Android_Android Image Capture

Android 如何配置ACTION_IMAGE_CAPTURE将照片存储在公共外部存储器中？

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Android 如何配置ACTION_IMAGE_CAPTURE将照片存储在公共外部存储器中？,android,android-image-capture,Android,Android Image Capture,建议将设备摄像头拍摄的图像存储为“应保存在设备的公共外部存储器中”。但如何做到这一点呢？提供的示例演示了如何保存到私人文件夹提供的示例演示了如何保存到私人文件夹不，没有。它显示了如何保存到getExternalFilesDir（）。这是的一部分，用户可以访问如果您愿意，还可以在环境.getExternalStoragePublicDirectory（Environment.DIRECTORY\u DCIM）下创建一个子目录。不过，您需要在所有API级别上使用WRITE\u EXTERNAL

建议将设备摄像头拍摄的图像存储为“应保存在设备的公共外部存储器中”。但如何做到这一点呢？提供的示例演示了如何保存到私人文件夹

提供的示例演示了如何保存到私人文件夹

不，没有。它显示了如何保存到

getExternalFilesDir（）

。这是的一部分，用户可以访问

如果您愿意，还可以在

环境.getExternalStoragePublicDirectory（Environment.DIRECTORY\u DCIM）

下创建一个子目录。不过，您需要在所有API级别上使用

WRITE\u EXTERNAL\u STORAGE

，包括需要在Android 6.0+上设置运行时权限

提供的示例演示了如何保存到私人文件夹

不，没有。它显示了如何保存到

getExternalFilesDir（）

。这是的一部分，用户可以访问

如果您愿意，还可以在

环境.getExternalStoragePublicDirectory（Environment.DIRECTORY\u DCIM）

下创建一个子目录。不过，您需要在所有API级别上编写外部存储，包括需要在Android 6.0+上设置运行时权限。

查看此代码它肯定会帮助您：

私有void selectImage（）{

请参阅此代码，它肯定会帮助您：

私有void selectImage（）{

试试这个

//Click Picture from camera
        camera_image.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                ContentValues values = new ContentValues();
                values.put(MediaStore.Images.Media.TITLE, "New Picture");
                values.put(MediaStore.Images.Media.DESCRIPTION, "From your Camera");
                imageUri = getContentResolver().insert(
                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(intent, CAMERA_CLICK_RESULT);

            }


        });

结果是这样的

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    //Get Image from Camera
    if (requestCode == CAMERA_CLICK_RESULT && resultCode == RESULT_OK) {

        Bitmap photo = null;
        try {
            photo = MediaStore.Images.Media.getBitmap(
                    getContentResolver(), imageUri);
        } catch (IOException e) {
            e.printStackTrace();
        }
        selectedImage = getResizedBitmap(photo, 900);


        try {
            //Write file
            String filename = "/file_name";
            String dir_path = "Directory_Path";
            File file = new File(dir_path)
            file.mkdir();
            FileOutputStream fileOutputStream = new FileOutputStream(dir_path + filename);
            selectedImage.compress(Bitmap.CompressFormat.PNG, 100, fileOutputStream);

            //Cleanup
            fileOutputStream.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

//Resize Bitmap
public Bitmap getResizedBitmap(Bitmap image, int maxSize) {
    int width = image.getWidth();
    int height = image.getHeight();

    float bitmapRatio = (float) width / (float) height;
    if (bitmapRatio > 1) {
        width = maxSize;
        height = (int) (width / bitmapRatio);
    } else {
        height = maxSize;
        width = (int) (height * bitmapRatio);
    }
    return Bitmap.createScaledBitmap(image, width, height, true);
}

试试这个

//Click Picture from camera
        camera_image.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                ContentValues values = new ContentValues();
                values.put(MediaStore.Images.Media.TITLE, "New Picture");
                values.put(MediaStore.Images.Media.DESCRIPTION, "From your Camera");
                imageUri = getContentResolver().insert(
                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
                startActivityForResult(intent, CAMERA_CLICK_RESULT);

            }


        });

结果是这样的

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    //Get Image from Camera
    if (requestCode == CAMERA_CLICK_RESULT && resultCode == RESULT_OK) {

        Bitmap photo = null;
        try {
            photo = MediaStore.Images.Media.getBitmap(
                    getContentResolver(), imageUri);
        } catch (IOException e) {
            e.printStackTrace();
        }
        selectedImage = getResizedBitmap(photo, 900);


        try {
            //Write file
            String filename = "/file_name";
            String dir_path = "Directory_Path";
            File file = new File(dir_path)
            file.mkdir();
            FileOutputStream fileOutputStream = new FileOutputStream(dir_path + filename);
            selectedImage.compress(Bitmap.CompressFormat.PNG, 100, fileOutputStream);

            //Cleanup
            fileOutputStream.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

//Resize Bitmap
public Bitmap getResizedBitmap(Bitmap image, int maxSize) {
    int width = image.getWidth();
    int height = image.getHeight();

    float bitmapRatio = (float) width / (float) height;
    if (bitmapRatio > 1) {
        width = maxSize;
        height = (int) (width / bitmapRatio);
    } else {
        height = maxSize;
        width = (int) (height * bitmapRatio);
    }
    return Bitmap.createScaledBitmap(image, width, height, true);
}

动作图像捕获方法：

// OPEN CAMERA & TAKE PIC
private void dispatchTakePictureIntent() {

    try {

        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
                ex.printStackTrace();
                Log.e("takePic_IO_EX", ex + "");
            }

            //photoFile = createImageFile();

            // Continue only if the File was successfully created
            if (photoFile != null) {

                Uri photoURI = FileProvider.getUriForFile(this,
                        "com.example.appname.fileprovider",
                        photoFile);


                List<ResolveInfo> resInfoList = this.getPackageManager().queryIntentActivities(takePictureIntent, PackageManager.MATCH_DEFAULT_ONLY);
                for (ResolveInfo resolveInfo : resInfoList) {
                    String packageName = resolveInfo.activityInfo.packageName;
                    this.grantUriPermission(packageName, photoURI, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
                }
                /*takePictureIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                this.setResult(RESULT_OK, takePictureIntent);*/


                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
            }
        }

    } catch (Exception e) {
        e.printStackTrace();
        Log.e("takePic_main_EX", e + "");
    }

}

并在

res

文件夹中创建一个名为

xml

的文件夹。在该

xml

文件夹中，创建一个

xml文件

并将其命名为

file\u path.xml

。在

文件路径.xml中提及此路径
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="Images" path="Android/data/" />
</paths>



全局声明文件photoFile。
祝您一切顺利！
动作图像捕获方法：
// OPEN CAMERA & TAKE PIC
private void dispatchTakePictureIntent() {

    try {

        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
                ex.printStackTrace();
                Log.e("takePic_IO_EX", ex + "");
            }

            //photoFile = createImageFile();

            // Continue only if the File was successfully created
            if (photoFile != null) {

                Uri photoURI = FileProvider.getUriForFile(this,
                        "com.example.appname.fileprovider",
                        photoFile);


                List<ResolveInfo> resInfoList = this.getPackageManager().queryIntentActivities(takePictureIntent, PackageManager.MATCH_DEFAULT_ONLY);
                for (ResolveInfo resolveInfo : resInfoList) {
                    String packageName = resolveInfo.activityInfo.packageName;
                    this.grantUriPermission(packageName, photoURI, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
                }
                /*takePictureIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                this.setResult(RESULT_OK, takePictureIntent);*/


                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
            }
        }

    } catch (Exception e) {
        e.printStackTrace();
        Log.e("takePic_main_EX", e + "");
    }

}

并在res
文件夹中创建一个名为xml
的文件夹。在该xml
文件夹中，创建一个xml文件
并将其命名为file\u path.xml
。在文件路径.xml中提及此路径
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="Images" path="Android/data/" />
</paths>



全局声明文件photoFile。
祝您一切顺利！
虽然保留文件对象后，我不需要在onActivityResult.ya中搜索它，因为您知道代码的流程。尽管保留文件对象后，我不需要在onActivityResult.ya中搜索它，因为您知道代码的流程。这同样有效，但不是使用此方法可以获取旋转信息。此方法也有效，但无法使用此方法获取旋转信息。