Android Webview 앱, 업로드 이미지가 작동하지 않음, 사진 선택을 탭하면 아무런 변화가 없습니다.

Question

Android Webview 앱을 만들고 정상적으로 작동하지만 사진을 업로드하는 데 사용되는 버튼을 누르면 아무런 변화가 없습니다. 너희들이

MainActivity.java

public class MainActivity extends AppCompatActivity { 
private WebView myWebView; 


private ValueCallback<Uri> mUploadMessage; 
private final static int FILECHOOSER_RESULTCODE = 1; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    myWebView = new WebView(this); 
    WebSettings webSettings = myWebView.getSettings(); 
    webSettings.setJavaScriptEnabled(true); 

    myWebView.setWebViewClient(new WebViewClient()); 
    myWebView.setWebChromeClient(new WebChromeClient() { 
     //The undocumented magic method override 
     //Eclipse will swear at you if you try to put @Override here 
     public void openFileChooser(ValueCallback<Uri> uploadMsg) { 
      MainActivity.this.showAttachmentDialog(uploadMsg); 
     } 

     // For Android > 3.x 
     public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) { 
      MainActivity.this.showAttachmentDialog(uploadMsg); 
     } 

     // For Android > 4.1 
     public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) { 
      MainActivity.this.showAttachmentDialog(uploadMsg); 
     } 
    }); 

    this.setContentView(myWebView); 

    myWebView.loadUrl("http://www.droidocial.com"); 
} 

private void showAttachmentDialog(ValueCallback<Uri> uploadMsg) { 
    this.mUploadMessage = uploadMsg; 

    Intent i = new Intent(Intent.ACTION_GET_CONTENT); 
    i.addCategory(Intent.CATEGORY_OPENABLE); 
    i.setType("*/*"); 

    this.startActivityForResult(Intent.createChooser(i, "Choose type of attachment"), FILECHOOSER_RESULTCODE); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent intent) { 
    if (requestCode == FILECHOOSER_RESULTCODE) { 
     if (null == this.mUploadMessage) { 
      return; 
     } 
     Uri result = intent == null || resultCode != RESULT_OK ? null : intent.getData(); 
     this.mUploadMessage.onReceiveValue(result); 
     this.mUploadMessage = null; 
    } 
} 

@Override 
public void onBackPressed() { 
    if (myWebView.canGoBack()) { 
     myWebView.goBack(); 
    } else { 
     super.onBackPressed(); 
    } 
} 

의 AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET"></uses-permission> 
<uses-permission android:name="android.permission.CAMERA"></uses-permission> 

<application 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme"> 

    <activity android:name=".Splashscreen"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 

    <activity android:name=".MainActivity"> 
     <intent-filter> 
      <action android:name="com.official.droidocial.droidocial.MAINACTIVITY" /> 

      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 
    </activity> 
</application> 

날 도울 수 있도록 내 코드를 부착 해요

너무 많이 시도했지만 여전히이 오류에 빠져 있습니다. 누군가이 오류를 해결할 수있는 방법을 말해 줄 수 있습니까?

Answer 1

도움이 될만한 사람은 https://www.opengeeks.me/2015/08/filechooser-and-android-webview/입니다.

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />