Add fastscroller with alphabetic hints (#616)

* Setup basic fast scroll

Work towards #558 

* Implement PopupTextProvider

Fixes #558

* Update changes

* Hide system scrollbars

* Port fastscroll to autofill preferences

* Spotless

Signed-off-by: Harsh Shandilya <msfjarvis@gmail.com>

2 files changed, 8 insertions, 1 deletions

diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt
index 3fe5e9e7..5c49bf81 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt
@@ -21,6 +21,7 @@ import com.google.android.material.floatingactionbutton.FloatingActionButton
 import com.zeapo.pwdstore.R
 import java.lang.ref.WeakReference
 import java.util.ArrayList
+import me.zhanghai.android.fastscroll.FastScrollerBuilder
 
 class AutofillPreferenceActivity : AppCompatActivity() {
 
@@ -39,6 +40,7 @@ class AutofillPreferenceActivity : AppCompatActivity() {
         val layoutManager = LinearLayoutManager(this)
         recyclerView!!.layoutManager = layoutManager
         recyclerView!!.addItemDecoration(DividerItemDecoration(this, DividerItemDecoration.VERTICAL))
+        FastScrollerBuilder(recyclerView!!).build()
 
         pm = packageManager
 
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt
index 139f9582..47937a32 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt
@@ -20,11 +20,12 @@ import com.zeapo.pwdstore.R
 import com.zeapo.pwdstore.utils.splitLines
 import java.util.ArrayList
 import java.util.Locale
+import me.zhanghai.android.fastscroll.PopupTextProvider
 
 internal class AutofillRecyclerAdapter(
     allApps: List<AppInfo>,
     private val activity: AutofillPreferenceActivity
-) : RecyclerView.Adapter<AutofillRecyclerAdapter.ViewHolder>() {
+) : RecyclerView.Adapter<AutofillRecyclerAdapter.ViewHolder>(), PopupTextProvider {
 
     private val apps: SortedList<AppInfo>
     private val allApps: ArrayList<AppInfo> // for filtering, maintain a list of all
@@ -56,6 +57,10 @@ internal class AutofillRecyclerAdapter(
         }
     }
 
+    override fun getPopupText(position: Int): String {
+        return allApps[position].appName[0].toString().toUpperCase(Locale.getDefault())
+    }
+
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         val v = LayoutInflater.from(parent.context)
                 .inflate(R.layout.autofill_row_layout, parent, false)