[英]Android using camera intent and saving image localy
I am currently trying to create a button the opens the camera app, and saves the picture with a specific name and location. 我目前正在尝试创建一个按钮,打开相机应用程序,并使用特定的名称和位置保存图片。
this is used to create the name/directory 这用于创建名称/目录
// create a filename for image to be stored into
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String Calib_image_File_Name = "Calibration" + "_" + timeStamp + "STOP";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
Calib_image_File_Name, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}
And this is my handler 这是我的经理
public void Take_Image_calib(View view)
{
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);
}
}
}
The issue i have is that after the "STOP" , it adds a 19 digit number afterwards. 我的问题是,在“ STOP”之后,其后会添加一个19位数字。 i don't know why this is happening, advice?
我不知道为什么会这样,建议?
EDIT: 编辑:
File provider 文件提供者
<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>
This is happening because of the createTempFile
in its definition it has this line: 发生这种情况是由于其定义中的
createTempFile
具有以下行:
...new File(tmpDirFile, prefix + tempFileRandom.nextInt() + suffix);
which I believe causes the problem. 我相信会导致问题。 Simply use
new File(...)
: 只需使用
new File(...)
:
File image = new File(storageDir, Calib_image_File_Name + ".jpg");
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.