Migrate to Android 29

Re-Added Cache clear to prevent deleting downloading images

app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt

@@ -0,0 +1,29 @@
+package xyz.quaver.pupil.ui
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.Toast
+import kotlinx.android.synthetic.main.activity_lock.*
+import xyz.quaver.pupil.R
+
+class LockActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_lock)
+
+        supportFragmentManager.beginTransaction().add(
+            R.id.lock_content,
+            PatternLockFragment().apply {
+                onPatternDrawn = {
+                    Toast.makeText(context, it, Toast.LENGTH_SHORT).show()
+                }
+            }
+        ).commit()
+
+        lock_pattern.isEnabled = false
+        lock_fingerprint.isEnabled = false
+        lock_password.isEnabled = false
+    }
+
+}