android-fileprovider

I'm trying to take a photo in my device's camera, when I call the method that handles the image capture the app crashes because of a nullpointer exception. I don't know what information is missing with my FileProvider as the stacktrace points the nullpointer into my FileProvider.getUriForFile statement. Here's my code HomeActivity public void takePhoto(View view){ //camera stuff Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); //folder stuff File imagesFolder = new File(Environment

I am getting this error.I am new to android studio and i need to create this plugin for unity to install an apk at runtime Error - Attempt to invoke virtual method 'android.content.Context Android.content.Context.getApplicationContext()' on a null object reference Plugin Class - package com.example.unitypluginappinstall; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.net.Uri; import android.support.v4.content.FileProvider; import java.io.File; public class PluginClass extends Activity { static String errMessage; public static String

I created a .pdf file in the private local directory I got via (I try to work with the minimum of permissions): string targetBaseDir = Environment.GetFolderPath( Environment.SpecialFolder.Personal, Environment.SpecialFolderOption.Create ); The official Android documentation suggests that file should be shared via a FileProvider . I also tried to get some code to start an intent, and I'm currently at: var fileUri = Android.Net.Uri.Parse(filePath); var intent = new Intent(); intent.SetFlags(ActivityFlags.ClearTop); intent.SetFlags(ActivityFlags.NewTask); intent.SetAction(Intent.ActionView);

Background So far, there was an easy way to install an APK file, using this intent: final Intent intent=new Intent(Intent.ACTION_VIEW) .setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive"); But, if your app targets Android API 24 and above (Nougat - 7.0) , and you run this code on it or newer, you will get an exception, as shown here , for example: android.os.FileUriExposedException: file:///storage/emulated/0/sample.apk exposed beyond app through Intent.getData() The problem So I did what I was told: use the support library's FileProvider class, as such: final

I am using FileProvider in my app. As usual I declared <Provider> tag in AndroidManifest.xml file as below. <provider android:name="android.support.v4.content.FileProvider" android:authorities="com.jk.android.fileprovider" android:exported="false" android:grantUriPermissions="true"> <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/file_paths" /> </provider> When I run it on android device which has lollipop version it works fine. when I try it on kitkat version it shows following errors: FATAL EXCEPTION: main Process: com.jk.android.perfectphotoeditor2018,

I am currently going through the process of Learning Xamarin.Forms. I am currently attempting to implement Camera functions using the Plugin.Media.CrossMedia library. Implemented below: public async Task<ImageSource> StartCamera() { await CrossMedia.Current.Initialize(); if (Plugin.Media.CrossMedia.Current.IsTakePhotoSupported && CrossMedia.Current.IsCameraAvailable) { var photo = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions() { SaveToAlbum=false, SaveMetaData=false}); if (photo != null) return ImageSource.FromStream(() => { return photo.GetStream(); }); else return null