[英]Why pictures taken by my app are 0 size in Android?
我的應用在Windows資源管理器中拍攝的照片始終為0字節,無法打開。 我只能在Android Gallery應用中看到它們。
我正在用這種方法拍照:
private void takePhoto() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = PhotoUtils.createImageFile(this);
} catch (IOException ex) {
Log.v("MainActivity", "Creating image exception");
}
if (photoFile != null) {
fileUri = Uri.fromFile(photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
}
這是PhotoUtils.createImageFile(...)
:
public static File createImageFile(Context context) throws IOException {
String currentPhotoPath;
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "ES_" + timeStamp;
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(imageFileName, ".jpg", storageDir);
currentPhotoPath = image.getAbsolutePath();
galleryAddPic(context, currentPhotoPath);
return image;
}
public static void galleryAddPic(Context context, String currentPhotoPath) {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(currentPhotoPath);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
context.sendBroadcast(mediaScanIntent);
}
您正在以臨時文件的形式為長度為零字節的文件建立索引。 嘗試移動您的galleryAddPic()
調用,直到拍攝完照片為止。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.