optimize webview

2026-05-12 19:27:09 +03:30
parent fe17187df2
commit 9ec64fc179
15 changed files with 227 additions and 53 deletions
@@ -2,13 +2,14 @@ package com.example.design_system

 import android.annotation.SuppressLint
 import android.app.Activity
+import android.view.View
 import android.view.ViewGroup
-import android.webkit.WebSettings
 import android.webkit.WebView
 import android.webkit.WebViewClient
 import androidx.activity.compose.BackHandler
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableLongStateOf
 import androidx.compose.runtime.mutableStateOf
@@ -21,8 +22,10 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.viewinterop.AndroidView
 import com.example.core.model.PrintEntity
 import com.example.design_system.util.PspJavaScriptInterface
+import com.example.design_system.util.WebViewManager
 import com.example.design_system.util.snackbar.SnackbarController
 import com.example.design_system.util.snackbar.SnackbarEvent
+
 import kotlinx.coroutines.launch

@SuppressLint("JavascriptInterface")
@@ -30,9 +33,7 @@ import kotlinx.coroutines.launch
@Composable
 fun PspWebView(
    url: String,
-    webView: WebView?,
    modifier: Modifier = Modifier,
-    onWebView: (WebView) -> Unit,
    onPayClick: (amount: Long, id: String?) -> Unit,
    onDeviceInfo: () -> String,
    onPrintClick: (printEntities: List<PrintEntity>) -> Unit,
@@ -42,7 +43,8 @@ fun PspWebView(
    val scope = rememberCoroutineScope()
    val context = LocalContext.current
    var lastBackTime by remember { mutableLongStateOf(0L) }
-    var isPaymentLaunching by remember { mutableStateOf(false) }
+    var webView by remember { mutableStateOf<WebView?>(null) }
+

    // Use rememberUpdatedState to ensure the bridge always calls the latest callbacks
    val currentOnPayClick by rememberUpdatedState(onPayClick)
@@ -69,7 +71,7 @@ fun PspWebView(
                scope.launch {
                    SnackbarController.sendEvent(
                        SnackbarEvent(
-                            message = "Press back again to exit"
+                            message = "برای خروج، دوباره بر روی بازگشت کلیک کنید."
                        )
                    )
                }
@@ -77,42 +79,36 @@ fun PspWebView(
        }
    }

+    DisposableEffect(Unit) {
+        webView = WebViewManager.getWebView(context)
+        onDispose {
+            webView?.let { WebViewManager.releaseWebView(it) }
+        }
+    }
+
    AndroidView(
        modifier = modifier,
        factory = { ctx ->
-            WebView(ctx).apply {
+            (webView ?: WebViewManager.getWebView(ctx)).apply {
                layoutParams = ViewGroup.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,
                    ViewGroup.LayoutParams.MATCH_PARENT
                )
+                overScrollMode = View.OVER_SCROLL_NEVER
                webViewClient = object : WebViewClient() {
                    override fun onPageFinished(view: WebView?, url: String?) {
                        super.onPageFinished(view, url)
                        canGoBack.value = view?.canGoBack() ?: false
                    }
                }
-
-                settings.apply {
-                    javaScriptEnabled = true
-                    domStorageEnabled = true
-                    loadWithOverviewMode = true
-                    useWideViewPort = true
-                    cacheMode = WebSettings.LOAD_DEFAULT
-                    mixedContentMode = WebSettings.MIXED_CONTENT_ALWAYS_ALLOW
-
-                    userAgentString =
-                        "Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 Chrome/120.0 Mobile Safari/537.36"
-                }
-
+                
                addJavascriptInterface(bridge, "NativeBridge")
-
-
+                
                loadUrl(url)
-                onWebView(this)
            }
        },
-        update = { view ->
-            onWebView(view)
+        update = {
+            it.loadUrl(url)
        }
    )

@@ -0,0 +1,60 @@
+package com.example.design_system.util
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.view.View
+import android.webkit.WebSettings
+import android.webkit.WebView
+import java.util.Stack
+
+@SuppressLint("StaticFieldLeak")
+object WebViewManager {
+
+    private const val POOL_SIZE = 1
+    private val webViewPool = Stack<WebView>()
+
+    fun preload(context: Context) {
+        if (webViewPool.isEmpty()) {
+            repeat(POOL_SIZE) {
+                val webView = createWebView(context)
+                webViewPool.push(webView)
+            }
+        }
+    }
+
+    fun getWebView(context: Context): WebView {
+        return if (webViewPool.isNotEmpty()) {
+            webViewPool.pop()
+        } else {
+            createWebView(context)
+        }
+    }
+
+    fun releaseWebView(webView: WebView) {
+        if (webViewPool.size < POOL_SIZE) {
+            webViewPool.push(webView)
+        }
+    }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    private fun createWebView(context: Context): WebView {
+        return WebView(context).apply {
+            setLayerType(View.LAYER_TYPE_HARDWARE, null)
+            settings.apply {
+                javaScriptEnabled = true
+                domStorageEnabled = true
+                databaseEnabled = true
+                cacheMode = WebSettings.LOAD_CACHE_ELSE_NETWORK
+                loadsImagesAutomatically = true
+                allowFileAccess = false
+                useWideViewPort = true
+                loadWithOverviewMode = true
+                mixedContentMode = WebSettings.MIXED_CONTENT_COMPATIBILITY_MODE
+                setSupportZoom(false)
+                builtInZoomControls = false
+                displayZoomControls = false
+                userAgentString = "Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 Chrome/120.0 Mobile Safari/537.36"
+            }
+        }
+    }
+}