调用系统文件管理器取得视频文件的路径

//跳转系统文件选择器

Intent intenta = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI);  

startActivityForResult(intenta, 1);

//onActivityResult处理返回的url取得视频文件的绝对路径

case 1:

if (resultCode == Activity.RESULT_OK) {

           Uri uri = data.getData();  

           Cursor cursor = this.getContentResolver().query(uri, null, null, null, null);  

           if (cursor.moveToFirst()) {

path = cursor.getString(cursor.getColumnIndex("_data"));// 获取绝对路径

}

}

break;