java.lang.SecurityException: Permission Denial: writing android.support.v4.content.FileProvider uri content://com.example.user014.komodo.fileprovider/camera_photos/storage/emulated/0/crop_photo.jpg from pid=10041, uid=10022 requires the provider be exported, or grantUriPermission()
上面这个异常先不谈,先说说Android7.0以后调用相机会崩溃的问题
先说以前调用系统相机拍照的时候，流程是这样的:
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
//创建一个路径保存图片 photoFile = ImageUtil.createImageFile();
if (photoFile != null) { photoURI = Uri.fromFile(photoFile);
//传递一个Uri takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, TAKE_PHOTO);
}
}
但是在Android7.0系统下直接崩溃了,后来在网上找了原因,是由于Android7.0执行了“StrictMode API 政策禁”的原因,有兴趣的可以自己去搜索了解,我就不解释了,给大家一个简书地址去看,已经写的很详细了
https://www.jianshu.com/p/fbae13948115 文章后面还有GitHub 的demo地址
我要说的是,拍照和选择照片完成后,经过裁剪后的照片,需要有Uri的读写权限才可以使用,否则会出现无法获取的错误:
.//添加Uri读写权限
public static void cropImageUri(Activity activity, Uri orgUri, Uri desUri, int aspectX, int aspectY, int width, int height, int requestCode) {
Intent intent = new Intent("com.android.camera.action.CROP");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
Log.d(TAG, "cropImageUri: " + "provider被授予权限导出");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
intent.setDataAndType(orgUri, "image/*");
intent.putExtra("crop", "true");
intent.putExtra("aspectX", aspectX);
intent.putExtra("aspectY", aspectY);
intent.putExtra("outputX", width);
intent.putExtra("outputY", height);
intent.putExtra("scale", true);
//将剪切的图片保存到目标Uri中
intent.putExtra(MediaStore.EXTRA_OUTPUT, desUri);
intent.putExtra("return-data", false);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
//添加Uri读写权限,否则7.0以上版本无法读写Uri路径文件
List resInfoList = activity.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo resolveInfo : resInfoList) {
String packageName = resolveInfo.activityInfo.packageName;
activity.grantUriPermission(packageName, desUri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
activity.startActivityForResult(intent, requestCode);
}
