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Update 2016-08-18.html.markdown
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lingjunqi authored Aug 28, 2016
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@@ -479,5 +479,36 @@ public class MainActivity extends AppCompatActivity {
```
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演示二 JavaS
**演示二 JavaScript调用有返回值的Java方法**

**1.定义一个带返回值的Java方法,并使用@JavaInterface**
```Java
@JavaInterface
public String getMessage(){
return "Hello,boy~";
}
```

**2.添加JavaScript的映射**
```Java
webView.addJavaScriptInterface(this,"Android");
```

**3.通过JavaScript调用Java方法**
```JavaScript
function showHello(){
var str=window.Android.getMessage();
console.log(str);
}
```

以上就是Js与WebView交互的一些介绍,希望能对你有帮助。
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##WebView加载优化

按时打卡大量空间啊




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