如果你用的是真机，可能是这个原因： For a real device you need to have "setWebContentsDebuggingEnabled" in the web view. Without it the web view is not exposed to automation tools

#1 楼 @xiang2743 是我要在这个 apk 的源码中添加这个语句么 WebView.setWebContentsDebuggingEnabled(true);

#3 楼 @zqting124 你用模拟器试下，看能不能识别到

#4 楼 @xiang2743 我开启了 app 的 webview debug，修改后的 app 在真机上不能运行，但在模拟器上可以运行，但是依旧检测不到 webview

配置：android 5.0 模拟器 +AppiumForWindows-1.3.4.1

1. 这是测试源代码： ```java

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.*;
import org.openqa.selenium.remote.CapabilityType;
import org.openqa.selenium.remote.DesiredCapabilities;

import android.webkit.WebView;
import io.appium.java_client.AppiumDriver;

import java.io.File;
import java.net.URL;
import java.util.Set;

public class AndroidWebViewTest {
private AppiumDriver driver;

@Before
public void setUp() throws Exception {
File classpathRoot = new File(System.getProperty("user.dir"));
File appDir = new File(classpathRoot, "apps");
File app = new File(appDir, "WebView.apk");
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
capabilities.setCapability(CapabilityType.PLATFORM, "WINDOWS");
capabilities.setCapability("app", app.getAbsolutePath());
capabilities.setCapability("appPackage", "com.example.webview");
capabilities.setCapability("appActivity", ".MainActivity");

capabilities.setCapability("platformName", "Android");

// capabilities.setCapability("deviceName","HUAWEI G700-U00");
capabilities.setCapability("deviceName","myAVD");
capabilities.setCapability("platformVersion", "21");

driver = new AppiumDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);

}

@Test
public void main(){
Set contextNames = driver.getContextHandles();
System.out.println(contextNames.size());
for (String contextName : contextNames) {
System.out.println(contextName);
if(contextName.contains("WEBVIEW")||contextName.contains("webview")){
driver.context(contextName);
}else{
System.out.println("no WEBVIEW");
}
}

// Thread.sleep(15000);

// driver.context("WEBVIEW");
// System.out.print("CurrentUrl"+driver.getCurrentUrl());
}

@After
public void tearDown() throws Exception {
driver.quit();
}

}

2. 这是打印的结果

```java
1
NATIVE_APP
no WEBVIEW

1. 这是控制台打屏

webview 是标准实现吗. 还是自定义的方案? 所有版本都不能获得 webview 挺奇怪. 感觉更像是跟你的 app 相关

#7 楼 @seveniruby webview 是标准实现的，我就一个 MainAcitivity，里面就只有一个 webview 控件，MainAcitivity 的内容如下：

package com.example.webview;

import android.support.v7.app.ActionBarActivity;
import android.os.Build;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.app.Activity;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends Activity {

    WebView webView;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
    }

    private void init(){
        webView = (WebView) findViewById(R.id.webView);
        webView.loadUrl("http://baidu.com");
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
          WebView.setWebContentsDebuggingEnabled(true);
        }
        webView.setWebViewClient(new WebViewClient(){
           @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
             view.loadUrl(url);
            return true;
           }
       });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

#7 楼 @seveniruby 恒温，请问下，我在模拟器上可以识别 WebView，真机上无法识别到控件，是不是一定需要把 setWebContentsDebuggingEnabled 这个选项打开呢？