android openfilechooser方法不能调用已签名的apk

我在android openFileChooser方法中遇到问题。它运作良好，如果通过使用eclipse通过ADB安装到手机（三星Galaxy S3采用Android 4.0.3）。但是，如果我从ecplise导出签署的APK，并把它安装到我的手机，openFileChooser方法会不会喊。android openfilechooser方法不能调用已签名的apk

我的HTML代码：

input type='file' name='files[]' multiple accept='image/*'

我在Eclipse代码：

private class mainWebChromeClient extends WebChromeClient { 

     @SuppressWarnings("unused") 
     public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) { 
      openFileChooser(uploadMsg); 
     } 

     @SuppressWarnings("unused") 
     public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) { 
      openFileChooser(uploadMsg); 
     } 

     public void openFileChooser(ValueCallback<Uri> uploadMsg) { 

       final List<Intent> cameraIntents = new ArrayList<Intent>(); 
       final Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
       File externalDataDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM); 
       File cameraDataDir = new File(externalDataDir.getAbsolutePath()+File.separator+"vast_manager_camera"); 
       if(!cameraDataDir.exists()){ 
        cameraDataDir.mkdirs(); 
       } 

       filePath = cameraDataDir.getAbsolutePath()+File.separator+System.currentTimeMillis()+".jpg"; 
       Uri imageUri = Uri.fromFile(new File(filePath)); 

       final PackageManager packageManager = getPackageManager(); 
       final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0); 

       final Intent intent = new Intent(captureIntent); 

       for(ResolveInfo res : listCam) { 
        final String packageName = res.activityInfo.packageName; 
        intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name)); 
        intent.setPackage(packageName); 
        intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); 
        cameraIntents.add(intent); 

       } 


       VastActivity.mUploadMessage = uploadMsg; 

       Intent i = new Intent(Intent.ACTION_GET_CONTENT); 

       i.addCategory(Intent.CATEGORY_OPENABLE); 
       i.setType("image/*");    
       Intent chooserIntent = Intent.createChooser(i,"Image Chooser"); 

       chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[]{})); 
       VastActivity.this.startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE); 

     } 
}

我对这个问题几天的奋斗，但不知道去解决它（TT），请人帮我解决它。

来源

2014-03-25 user3460008

如果你使用的ProGuard那么方法 “openFileChooser” 可能有点混淆，尝试添加

-keep类*宽android.webkit。*

您的ProGuard配置，看看如果它可以帮助:)

来源

2014-03-31 07:27:12 user3480159

我有同样的问题。将此添加到我的proguard-project.txt文件中为我解决了这个问题：

-keepclassmembers class * { 
    public void openFileChooser(android.webkit.ValueCallback,java.lang.String); 
    public void openFileChooser(android.webkit.ValueCallback); 
    public void openFileChooser(android.webkit.ValueCallback, java.lang.String, java.lang.String); 
}

来源

2014-07-09 18:46:42 georgeloring

android openfilechooser方法不能调用已签名的apk

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