app的 web-view 中点击上传文件闪退 （自定义基座）

android环境下，使用自定义基座在web-view中点击网页中的file 标签会闪退，没有错误信息，请问是什么原因？

权限

                "<uses-feature android:name=\"android.hardware.camera\"/>",  
                "<uses-feature android:name=\"android.hardware.camera.autofocus\"/>",  
                "<uses-permission android:name=\"android.permission.ACCESS_COARSE_LOCATION\"/>",  
                "<uses-permission android:name=\"android.permission.ACCESS_FINE_LOCATION\"/>",  
                "<uses-permission android:name=\"android.permission.ACCESS_NETWORK_STATE\"/>",  
                "<uses-permission android:name=\"android.permission.ACCESS_WIFI_STATE\"/>",  
                "<uses-permission android:name=\"android.permission.BODY_SENSORS\"/>",  
                "<uses-permission android:name=\"android.permission.CALL_PHONE\"/>",  
                "<uses-permission android:name=\"android.permission.CAMERA\"/>",  
                "<uses-permission android:name=\"android.permission.CHANGE_NETWORK_STATE\"/>",  
                "<uses-permission android:name=\"android.permission.CHANGE_WIFI_STATE\"/>",  
                "<uses-permission android:name=\"android.permission.FLASHLIGHT\"/>",  
                "<uses-permission android:name=\"android.permission.GET_ACCOUNTS\"/>",  
                "<uses-permission android:name=\"android.permission.INTERNET\"/>",  
                "<uses-permission android:name=\"android.permission.MODIFY_AUDIO_SETTINGS\"/>",  
                "<uses-permission android:name=\"android.permission.MOUNT_UNMOUNT_FILESYSTEMS\"/>",  
                "<uses-permission android:name=\"android.permission.READ_CONTACTS\"/>",  
                "<uses-permission android:name=\"android.permission.READ_LOGS\"/>",  
                "<uses-permission android:name=\"android.permission.READ_PHONE_STATE\"/>",  
                "<uses-permission android:name=\"android.permission.RECORD_AUDIO\"/>",  
                "<uses-permission android:name=\"android.permission.VIBRATE\"/>",  
                "<uses-permission android:name=\"android.permission.WAKE_LOCK\"/>",  
                "<uses-permission android:name=\"android.permission.WRITE_CONTACTS\"/>",  
                "<uses-permission android:name=\"android.permission.WRITE_EXTERNAL_STORAGE\"/>",  
                "<uses-permission android:name=\"android.permission.WRITE_SETTINGS\"/>"