Fix file permissions issues

Author: tananaev

app/src/main/AndroidManifest.xml

@@ -22,6 +22,16 @@
             </intent-filter>
         </activity>
 
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="${applicationId}"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/paths"/>
+        </provider>
+
     </application>
 
 </manifest>

app/src/main/java/com/tananaev/logcat/MainActivity.java

@@ -23,6 +23,7 @@
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v4.content.FileProvider;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.DefaultItemAnimator;
@@ -182,11 +183,12 @@ private Intent getShareIntent() {
             Log.w(TAG, e);
         }
 
-        Uri uri = Uri.fromFile(new File(getExternalCacheDir() + TEMP_FILE));
+        Uri uri = FileProvider.getUriForFile(this, getPackageName(), file);
 
         Intent intent = new Intent(Intent.ACTION_SEND);
-        intent.setType("text/plain");
+        intent.setType("text/*");
         intent.putExtra(Intent.EXTRA_STREAM, uri);
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
         return intent;
     }
 

app/src/main/res/xml/paths.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <external-cache-path name="share_path" path="." />
+</paths>