在 API 级别 17 下未调用 onActivityResult

Question

我有一个用于将图像上传到服务器的类，但我无法从图库中选择图像。它在 API 级别 +17 上正常工作，但在 API 级别 -17 上无法正常工作

这些是我的代码

自定义Javascript类

public String uploadImage(){
    Activity activity = (Activity)context;
    Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
    photoPickerIntent.setType("image/*");       
    activity.startActivityForResult(photoPickerIntent, 100);
...

主活动

protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 

    super.onActivityResult(requestCode, resultCode, imageReturnedIntent);

    if(requestCode == 100){
        try{
            Uri selectedImage = imageReturnedIntent.getData();
            String[] filePathColumn = {MediaStore.Images.Media.DATA};
            Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String filePath = cursor.getString(columnIndex);
            cursor.close();            
            Log.i("File", filePath);
            if (Build.VERSION.SDK_INT >= 17){
                HappyJavaScriptInterface.attachment = new File(filePath);      
                HappyJavaScriptInterface.uploadProcess = 1;
            }
            else
            {
                HappyJavaScriptInterfaceUnder17.attachment = new File(filePath);      
                HappyJavaScriptInterfaceUnder17.uploadProcess = 1;
            }
        }
        catch(Exception ex){
            if (Build.VERSION.SDK_INT >= 17){
                HappyJavaScriptInterface.uploadProcess = 1;
            }
            else
            {
                HappyJavaScriptInterfaceUnder17.uploadProcess = 1;
            }
        }
    }

它在 android 4.2.2 模拟器上正常工作，但在 2.3.3 上不工作

谢谢

Answer 1

尝试在你的清单中为MainActivity设置android:noHistory="false"