修复自定义注入命回调Bug

Author: pedant

README.md

@@ -15,7 +15,7 @@ Safe Java-JS WebView Bridge
     <dependency>
       <groupId>cn.pedant.safewebviewbridge</groupId>
       <artifactId>library</artifactId>
-      <version>1.2</version>
+      <version>1.3</version>
       <type>aar</type>
     </dependency>
 
@@ -26,7 +26,7 @@ Safe Java-JS WebView Bridge
     }
 
     dependencies {
-        compile 'cn.pedant.safewebviewbridge:library:1.2'
+        compile 'cn.pedant.safewebviewbridge:library:1.3'
     }
 
 ## Sample

gradle.properties

@@ -1,5 +1,5 @@
-VERSION_NAME=1.2
-VERSION_CODE=3
+VERSION_NAME=1.3
+VERSION_CODE=4
 GROUP=cn.pedant.safewebviewbridge
 
 POM_DESCRIPTION=Provide a safe and reliable scheme for Java and JavaScript in Android WebView.

library/src/main/java/cn/pedant/SafeWebViewBridge/JsCallJava.java

@@ -17,16 +17,22 @@ public class JsCallJava {
     private final static String TAG = "JsCallJava";
     private final static String RETURN_RESULT_FORMAT = "{\"code\": %d, \"result\": %s}";
     private HashMap<String, Method> mMethodsMap;
+    private String mInjectedName;
     private String mPreloadInterfaceJS;
     private Gson mGson;
 
     public JsCallJava (String injectedName, Class injectedCls) {
         try {
+            if (TextUtils.isEmpty(injectedName)) {
+                throw new Exception("injected name can not be null");
+            }
+            mInjectedName = injectedName;
             mMethodsMap = new HashMap<String, Method>();
             //获取自身声明的所有方法（包括public private protected）， getMethods会获得所有继承与非继承的方法
             Method[] methods = injectedCls.getDeclaredMethods();
-            StringBuilder sb = new StringBuilder("javascript:(function(b){console.log(\"HostApp initialization begin\");var a={queue:[],callback:function(){var d=Array.prototype.slice.call(arguments,0);var c=d.shift();var e=d.shift();this.queue[c].apply(this,d);if(!e){delete this.queue[c]}}};");
-
+            StringBuilder sb = new StringBuilder("javascript:(function(b){console.log(\"");
+            sb.append(mInjectedName);
+            sb.append(" initialization begin\");var a={queue:[],callback:function(){var d=Array.prototype.slice.call(arguments,0);var c=d.shift();var e=d.shift();this.queue[c].apply(this,d);if(!e){delete this.queue[c]}}};");
             for (Method method : methods) {
                 String sign;
                 if (method.getModifiers() != (Modifier.PUBLIC | Modifier.STATIC) || (sign = genJavaMethodSign(method)) == null) {
@@ -36,9 +42,15 @@ public JsCallJava (String injectedName, Class injectedCls) {
                 sb.append(String.format("a.%s=", method.getName()));
             }
 
-            sb.append("function(){var f=Array.prototype.slice.call(arguments,0);if(f.length<1){throw\"HostApp call error, message:miss method name\"}var e=[];for(var h=1;h<f.length;h++){var c=f[h];var j=typeof c;e[e.length]=j;if(j==\"function\"){var d=a.queue.length;a.queue[d]=c;f[h]=d}}var g=JSON.parse(prompt(JSON.stringify({method:f.shift(),types:e,args:f})));if(g.code!=200){throw\"HostApp call error, code:\"+g.code+\", message:\"+g.result}return g.result};Object.getOwnPropertyNames(a).forEach(function(d){var c=a[d];if(typeof c===\"function\"&&d!==\"callback\"){a[d]=function(){return c.apply(a,[d].concat(Array.prototype.slice.call(arguments,0)))}}});b.");
-            sb.append(injectedName);
-            sb.append("=a;console.log(\"HostApp initialization end\")})(window);");
+            sb.append("function(){var f=Array.prototype.slice.call(arguments,0);if(f.length<1){throw\"");
+            sb.append(mInjectedName);
+            sb.append(" call error, message:miss method name\"}var e=[];for(var h=1;h<f.length;h++){var c=f[h];var j=typeof c;e[e.length]=j;if(j==\"function\"){var d=a.queue.length;a.queue[d]=c;f[h]=d}}var g=JSON.parse(prompt(JSON.stringify({method:f.shift(),types:e,args:f})));if(g.code!=200){throw\"");
+            sb.append(mInjectedName);
+            sb.append(" call error, code:\"+g.code+\", message:\"+g.result}return g.result};Object.getOwnPropertyNames(a).forEach(function(d){var c=a[d];if(typeof c===\"function\"&&d!==\"callback\"){a[d]=function(){return c.apply(a,[d].concat(Array.prototype.slice.call(arguments,0)))}}});b.");
+            sb.append(mInjectedName);
+            sb.append("=a;console.log(\"");
+            sb.append(mInjectedName);
+            sb.append(" initialization end\")})(window);");
             mPreloadInterfaceJS = sb.toString();
         } catch(Exception e){
             Log.e(TAG, "init js error:" + e.getMessage());
@@ -110,7 +122,7 @@ public String call(WebView webView, String jsonStr) {
                         values[k + 1] = argsVals.isNull(k) ? null : argsVals.getJSONObject(k);
                     } else if ("function".equals(currType)) {
                         sign += "_F";
-                        values[k + 1] = new JsCallback(webView, argsVals.getInt(k));
+                        values[k + 1] = new JsCallback(webView, mInjectedName, argsVals.getInt(k));
                     } else {
                         sign += "_P";
                     }
@@ -176,7 +188,7 @@ private String getReturn (String reqJson, int stateCode, Object result) {
             insertRes = String.valueOf(result);
         }
         String resStr = String.format(RETURN_RESULT_FORMAT, stateCode, insertRes);
-        Log.d(TAG, "HostApp call json: " + reqJson + " result:" + resStr);
+        Log.d(TAG, mInjectedName + " call json: " + reqJson + " result:" + resStr);
         return resStr;
     }
 }

library/src/main/java/cn/pedant/SafeWebViewBridge/JsCallback.java

@@ -12,14 +12,16 @@
 import android.util.Log;
 
 public class JsCallback {
-    private static final String CALLBACK_JS_FORMAT = "javascript:HostApp.callback(%d, %d %s);";
-    private int index;
-    private WebView webView;
-    private int isPermanent;
+    private static final String CALLBACK_JS_FORMAT = "javascript:%s.callback(%d, %d %s);";
+    private int mIndex;
+    private WebView mWebView;
+    private int mIsPermanent;
+    private String mInjectedName;
 
-    public JsCallback (WebView view, int index) {
-        this.index = index;
-        this.webView = view;
+    public JsCallback (WebView view, String injectedName, int index) {
+        mWebView = view;
+        mInjectedName = injectedName;
+        mIndex = index;
     }
 
     public void apply (Object... args) {
@@ -35,12 +37,12 @@ public void apply (Object... args) {
                 sb.append("\"");
             }
         }
-        String execJs = String.format(CALLBACK_JS_FORMAT, index, isPermanent, sb.toString());
+        String execJs = String.format(CALLBACK_JS_FORMAT, mInjectedName, mIndex, mIsPermanent, sb.toString());
         Log.d("JsCallBack", execJs);
-        webView.loadUrl(execJs);
+        mWebView.loadUrl(execJs);
     }
 
     public void setPermanent (boolean value) {
-        isPermanent = value ? 1 : 0;
+        mIsPermanent = value ? 1 : 0;
     }
 }

sample/build.gradle

@@ -28,6 +28,6 @@ android {
 }
 
 dependencies {
-    //compile 'cn.pedant.safewebviewbridge:library:1.2'
+    //compile 'cn.pedant.safewebviewbridge:library:1.3'
     compile project(':library')
 }