优化：内嵌 WebView 打开使用帮助

app/src/main/AndroidManifest.xml

@@ -117,6 +117,10 @@
             android:name=".AppListActivity"
             android:exported="true"
             android:label="@string/app_list" />
+        <activity
+            android:name=".HelpActivity"
+            android:exported="true"
+            android:label="@string/help" />
         <activity
             android:name=".OnePixelActivity"
             android:configChanges="keyboardHidden|orientation|screenSize|navigation|keyboard"

app/src/main/java/com/idormy/sms/forwarder/HelpActivity.java

@@ -0,0 +1,60 @@
+package com.idormy.sms.forwarder;
+
+import android.annotation.SuppressLint;
+import android.os.Build;
+import android.os.Bundle;
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+@SuppressWarnings("deprecation")
+public class HelpActivity extends AppCompatActivity {
+
+    @SuppressLint("SetJavaScriptEnabled")
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_help);
+        //获得控件
+        WebView webView = findViewById(R.id.wv_webview);
+
+        //设置
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            webView.getSettings().setSafeBrowsingEnabled(false);
+        }
+        WebSettings webSetting = webView.getSettings();
+        webSetting.setJavaScriptEnabled(true);
+
+        webSetting.setBuiltInZoomControls(true);
+        webSetting.setDisplayZoomControls(false);
+        webSetting.setUseWideViewPort(true);
+
+        webSetting.setBlockNetworkImage(false);
+        //缓存模式
+        webSetting.setCacheMode(WebSettings.LOAD_NO_CACHE);
+        webSetting.setDatabaseEnabled(true);
+        webSetting.setDomStorageEnabled(true);
+        webSetting.setAppCacheMaxSize(1024 * 1024 * 8);
+        webSetting.setAppCachePath(getFilesDir().getAbsolutePath());
+        webSetting.setDatabasePath(getFilesDir().getAbsolutePath());
+        webSetting.setAllowFileAccess(true);
+        webSetting.setAppCacheEnabled(true);
+        //webSetting.setTextZoom(100);
+        webSetting.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
+
+        //访问网页
+        webView.loadUrl("https://gitee.com/pp/SmsForwarder/wikis/pages");
+        //系统默认会通过手机浏览器打开网页，为了能够直接通过WebView显示网页，则必须设置
+        webView.setWebViewClient(new WebViewClient() {
+            @Override
+            public boolean shouldOverrideUrlLoading(WebView view, String url) {
+                //使用WebView加载显示url
+                view.loadUrl(url);
+                //返回true
+                return true;
+            }
+        });
+    }
+}

app/src/main/java/com/idormy/sms/forwarder/MainActivity.java

@@ -5,7 +5,6 @@ import android.app.Dialog;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
-import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
@@ -59,6 +58,7 @@ import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.List;
 
+@SuppressWarnings("CommentedOutCode")
 public class MainActivity extends AppCompatActivity implements RefreshListView.IRefreshListener {
 
     private final String TAG = "MainActivity";
@@ -513,8 +513,9 @@ public class MainActivity extends AppCompatActivity implements RefreshListView.I
                 intent = new Intent(this, AboutActivity.class);
                 break;
             case R.id.to_help:
-                Uri uri = Uri.parse("https://gitee.com/pp/SmsForwarder/wikis/pages");
-                intent = new Intent(Intent.ACTION_VIEW, uri);
+                //Uri uri = Uri.parse("https://gitee.com/pp/SmsForwarder/wikis/pages");
+                //intent = new Intent(Intent.ACTION_VIEW, uri);
+                intent = new Intent(this, HelpActivity.class);
                 break;
             default:
                 return super.onOptionsItemSelected(item);

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

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".HelpActivity">
+
+    <WebView
+        android:id="@+id/wv_webview"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
+
+