我使用开发者网站https://developer.android.com/training/camera/photobasics.html
中的代码btnPhoto.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Log.d("Button", "take photo");
dispatchTakePictureIntent();
}
});
}
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) {
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(photoFile));
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}
}
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
Log.d("storageDir",storageDir.toString());
//File storageDir = "/Android/data/" + getApplicationContext().getPackageName() + "/files/";
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = "file:" + image.getAbsolutePath();
return image;
}
如果按下按钮,意图开始,我可以拍照,相机关闭但没有拍照(任何文件夹中没有照片)。我不知道为什么,代码应该有用。
答案 0 :(得分:0)
您是如何得出图片文件夹中没有文件的结论?在Android中创建任何新文件时,它不会立即反映出来。要使其反映在图库中,您需要通过MediaScannerConnection
进行扫描。
MediaScannerConnection.scanFile(getActivity(), new String[]{image.toString()}, null, null);
但如果情况并非如此:在你的onActivityResult()中,查询你收到的意图对象,看看你是否有你拍摄的图像的位图。
我希望这会有所帮助:capturing images with MediaStore.ACTION_IMAGE_CAPTURE intent in android