Fix Apk install (fix #200)

Author: fm-sys

app/src/main/AndroidManifest.xml

@@ -7,8 +7,8 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="28" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32"/>
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
-    <uses-permission android:name="android.permission.DOWNLOAD_WITHOUT_NOTIFICATION" /> <!-- Needed to prompt the user to give permission to install a downloaded apk -->
-    <uses-permission-sdk-23 android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+    <uses-permission android:name="android.permission.DOWNLOAD_WITHOUT_NOTIFICATION" />
+    <uses-permission-sdk-23 android:name="android.permission.REQUEST_INSTALL_PACKAGES" /> <!-- Needed to prompt the user to give permission to install a downloaded apk -->
 
     <uses-feature
         android:name="android.hardware.wifi"

app/src/main/java/com/fmsys/snapdrop/MainActivity.java

@@ -633,10 +633,11 @@ public void onCompleted(@NonNull final Object file) {
 
     private void fileDownloadedIntent(final Uri uri, final JavaScriptInterface.FileHeader fileHeader) {
         final int notificationId = (int) SystemClock.uptimeMillis();
+        boolean isApk = fileHeader.getName().toLowerCase().endsWith(".apk");
 
         final Intent intent = new Intent();
-        intent.setAction(Intent.ACTION_VIEW);
-        intent.setDataAndType(uri, fileHeader.getMime());
+        intent.setAction(isApk ? Intent.ACTION_INSTALL_PACKAGE : Intent.ACTION_VIEW);
+        intent.setDataAndType(uri, isApk ? "application/vnd.android.package-archive" : fileHeader.getMime());
         intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 
         final PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 1, intent, Build.VERSION.SDK_INT >= 23 ? PendingIntent.FLAG_IMMUTABLE | PendingIntent.FLAG_CANCEL_CURRENT : PendingIntent.FLAG_CANCEL_CURRENT);
@@ -674,7 +675,7 @@ private void fileDownloadedIntent(final Uri uri, final JavaScriptInterface.FileH
         }
 
         final Snackbar snackbar = Snackbar.make(binding.pullToRefresh, R.string.download_successful, Snackbar.LENGTH_LONG)
-                .setAction(R.string.open, button -> {
+                .setAction(isApk ? R.string.install : R.string.open, button -> {
                     try {
                         startActivity(intent);
                         notificationManager.cancel(notificationId);

app/src/main/res/values/strings.xml

@@ -16,6 +16,7 @@
 
     <!-- Action Buttons -->
     <string name="open">open</string>
+    <string name="install">install</string>
     <string name="reset">reset</string>
     <string name="copy">copy</string>