fix #619, use a different pdf viewer

app/build.gradle

@@ -64,8 +64,8 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:f538687d6e'
-    implementation 'com.github.tibbi:AndroidPdfViewer:da57ff410e'
+    implementation 'com.github.SimpleMobileTools:Simple-Commons:b452494768'
+    implementation 'com.github.tibbi:PdfViewPager:1bc22f031a'
     implementation 'com.github.Stericson:RootTools:df729dcb13'
     implementation 'com.github.Stericson:RootShell:1.6'
     implementation 'com.alexvasilkov:gesture-views:2.5.2'

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/MainActivity.kt

@@ -640,7 +640,7 @@ class MainActivity : SimpleActivity() {
 
     private fun launchAbout() {
         closeSearch()
-        val licenses = LICENSE_GLIDE or LICENSE_PATTERN or LICENSE_REPRINT or LICENSE_GESTURE_VIEWS or LICENSE_PDF_VIEWER or LICENSE_AUTOFITTEXTVIEW
+        val licenses = LICENSE_GLIDE or LICENSE_PATTERN or LICENSE_REPRINT or LICENSE_GESTURE_VIEWS or LICENSE_PDF_VIEW_PAGER or LICENSE_AUTOFITTEXTVIEW
 
         val faqItems = arrayListOf(
             FAQItem(R.string.faq_3_title_commons, R.string.faq_3_text_commons),

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/PDFViewerActivity.kt

@@ -8,7 +8,6 @@ import android.print.PrintAttributes
 import android.print.PrintManager
 import android.view.WindowManager
 import android.widget.RelativeLayout
-import com.github.barteksc.pdfviewer.scroll.DefaultScrollHandle
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.REAL_FILE_PATH
 import com.simplemobiletools.commons.helpers.isPiePlus
@@ -16,11 +15,14 @@ import com.simplemobiletools.filemanager.pro.R
 import com.simplemobiletools.filemanager.pro.extensions.hideSystemUI
 import com.simplemobiletools.filemanager.pro.extensions.showSystemUI
 import com.simplemobiletools.filemanager.pro.helpers.PdfDocumentAdapter
+import es.voghdev.pdfviewpager.library.adapter.BasePDFPagerAdapter
+import es.voghdev.pdfviewpager.library.adapter.PDFPagerAdapter
 import kotlinx.android.synthetic.main.activity_pdf_viewer.*
 
 class PDFViewerActivity : SimpleActivity() {
     private var realFilePath = ""
     private var isFullScreen = false
+    private var adapter: BasePDFPagerAdapter? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         showTransparentTop = true
@@ -54,6 +56,11 @@ class PDFViewerActivity : SimpleActivity() {
         window.navigationBarColor = Color.TRANSPARENT
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        adapter?.close()
+    }
+
     private fun setupMenu() {
         (pdf_viewer_appbar.layoutParams as RelativeLayout.LayoutParams).topMargin = statusBarHeight
         pdf_viewer_toolbar.menu.apply {
@@ -92,17 +99,19 @@ class PDFViewerActivity : SimpleActivity() {
             return
         }
 
-        val primaryColor = getProperPrimaryColor()
         pdf_viewer.setBackgroundColor(getProperBackgroundColor())
-        pdf_viewer.fromUri(uri)
-            .scrollHandle(DefaultScrollHandle(this, primaryColor.getContrastColor(), primaryColor))
-            .spacing(15)
-            .onTap { toggleFullScreen() }
-            .onError {
-                showErrorToast(it.localizedMessage?.toString() ?: getString(R.string.unknown_error_occurred))
-                finish()
+
+        adapter = PDFPagerAdapter.Builder(this)
+            .setPdfPath(uri.toString())
+            .setOnPageClickListener {
+                toggleFullScreen()
             }
-            .load()
+            .setErrorHandler { throwable ->
+                showErrorToast(throwable.toString())
+            }
+            .create()
+
+        pdf_viewer.adapter = adapter
 
         showSystemUI(true)
 

app/src/main/res/layout/activity_pdf_viewer.xml

@@ -6,7 +6,7 @@
     android:layout_height="wrap_content"
     app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
-    <com.github.barteksc.pdfviewer.PDFView
+    <es.voghdev.pdfviewpager.library.PDFViewPager
         android:id="@+id/pdf_viewer"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />