feat: 优化代码

app/src/main/java/io/legado/app/ui/qrcode/QrCodeActivity.kt

@@ -2,6 +2,7 @@ package io.legado.app.ui.qrcode
 
 import android.app.Activity
 import android.content.Intent
+import android.graphics.BitmapFactory
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -11,7 +12,7 @@ import io.legado.app.R
 import io.legado.app.base.BaseActivity
 import io.legado.app.help.permission.Permissions
 import io.legado.app.help.permission.PermissionsCompat
-import io.legado.app.utils.RealPathUtil
+import io.legado.app.utils.readBytes
 import kotlinx.android.synthetic.main.activity_qrcode_capture.*
 import kotlinx.android.synthetic.main.view_title_bar.*
 import org.jetbrains.anko.toast
@@ -98,9 +99,11 @@ class QrCodeActivity : BaseActivity(R.layout.activity_qrcode_capture), QRCodeVie
             zxingview.startSpotAndShowRect() // 显示扫描框，并开始识别
 
             if (resultCode == Activity.RESULT_OK && requestCode == requestQrImage) {
-                val picturePath = RealPathUtil.getPath(this, it)
                 // 本来就用到 QRCodeView 时可直接调 QRCodeView 的方法，走通用的回调
-                zxingview.decodeQRCode(picturePath)
+                it.readBytes(this)?.let { bytes ->
+                    val bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.size)
+                    zxingview.decodeQRCode(bitmap)
+                }
             }
         }
     }