如何从android中的json对象中删除和解析空字符串并显示为列表

时间:2017-06-14 06:06:22

标签: android json android-studio string-parsing

我使用复选框选择字段,如checkbox image

下面的图片

我正在获取json对象,

" painWorse":"坐着,站着,,,,躺着"

我需要解析并显示为

  • 站在
  • 躺下

目前我将文字设置为:

viewHolder.painWorse.setText(assessObject.get("painWorse").toString().replace("\"", ""));

我需要跳过空白项目并解析并仅显示已检查的项目。如何实现此目标

适配器代码:

public class AssessmentAdapter extends RealmBasedRecyclerViewAdapter<Assessment, AssessmentAdapter.ViewHolder> {

    Context mContext;

    public AssessmentAdapter(
            Context context,
            RealmResults<Assessment> realmResults,
            boolean automaticUpdate,
            boolean animateIdType) {
        super(context, realmResults, automaticUpdate, animateIdType);
        mContext = context;
    }

    public class ViewHolder extends RealmViewHolder {

//

        @BindView(R.id.visitDate)
        TextView visitDate;
        @BindView(R.id.Name)
        TextView name;
        @BindView(R.id.txtAge)
        TextView age;
        @BindView(R.id.txtSex)
        TextView sex;
        @BindView(R.id.problemBegin)
        TextView problem;
        @BindView(R.id.problem)
        TextView problemBegin;
        @BindView(R.id.morningRate)
        TextView morningRate;
        @BindView(R.id.afternoonRate)
        TextView afternoonRate;
        @BindView(R.id.eveningRate)
        TextView eveningRate;
        @BindView(R.id.assessmentDetails)
        CardView assessmentDetails;
        @BindView(R.id.painWorse)
        TextView painWorse;
        @BindView(R.id.currentCondition)
        TextView currentCondition;
        @BindView(R.id.diagnosticStudied)
        TextView diagnosticStudied;
        @BindView(R.id.medications)
        TextView medications;
        @BindView(R.id.history)
        TextView history;
        @BindView(R.id.goals)
        TextView goals;


        public ViewHolder(View container) {
            super(container);
            ButterKnife.bind(this, container);
        }
    }

    @Override
    public ViewHolder onCreateRealmViewHolder(ViewGroup viewGroup, int viewType) {

        ViewHolder vh = null;
        try {
            View v = inflater.inflate(R.layout.assessment_card_view, viewGroup, false);
            vh = new ViewHolder(v);

        } catch (Exception e) {
            Log.v(Constants.TAG, "onCreateRealmViewHolder Exception: " + e.toString());
        }
        return vh;
    }

    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
    @Override
    public void onBindRealmViewHolder(ViewHolder viewHolder, int position) {

        final Assessment assessment = realmResults.get(position);

        try {


            JsonParser parser = new JsonParser();
            JsonArray assess = parser.parse(assessment.getAssesment().toString()).getAsJsonArray();
            Log.v(Constants.TAG, "assessing" + assess);
            JsonObject assessObject = assess.get(0).getAsJsonObject();
            Log.v(Constants.TAG, "assessObject" + assessObject);
            viewHolder.visitDate.setText(assessObject.get("Date").toString().replace("\"", ""));
            viewHolder.name.setText(assessObject.get("Name").toString().replace("\"", ""));
            viewHolder.age.setText(assessObject.get("Age").toString().replace("\"", ""));
            viewHolder.sex.setText(assessObject.get("Sex").toString().replace("\"", ""));
            viewHolder.problem.setText(assessObject.get("Problem").toString().replace("\"", ""));
            viewHolder.problemBegin.setText(assessObject.get("ProblemBegin").toString().replace("\"", ""));
            viewHolder.morningRate.setText(assessObject.get("morningRate").toString().replace("\"", ""));
            viewHolder.afternoonRate.setText(assessObject.get("afternoonRate").toString().replace("\"", ""));
            viewHolder.eveningRate.setText(assessObject.get("eveningRate").toString().replace("\"", ""));
            viewHolder.painWorse.setText(assessObject.get("painWorse").toString().replace("\"", ""));
            viewHolder.currentCondition.setText(assessObject.get("currentCondition").toString().replace("\"", ""));
            viewHolder.diagnosticStudied.setText(assessObject.get("Diagnostic").toString().replace("\"", ""));
            viewHolder.medications.setText(assessObject.get("Medications").toString().replace("\"", ""));
            viewHolder.history.setText(assessObject.get("History").toString().replace("\"", ""));
            viewHolder.goals.setText(assessObject.get("Goals").toString().replace("\"", ""));
            viewHolder.assessmentDetails.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                }
            });


        } catch (Exception e) {
            Log.v(Constants.TAG, "Exception: " + e.toString());
        }

    }


}

2 个答案:

答案 0 :(得分:3)

在不知道有关您的代码的任何其他内容的情况下,我会说您需要使用正则表达式来删除那些多个逗号

String pain = "Sitting,Standing,,,,Lying Down";
pain = pain.replaceAll(",+",","); // Replace every ocurrence of one or more commas with just one comma
// pain = "Sitting,Standing,Lying Down";

更清晰,更简单地格式化此信息的方法是使用LinearLayoutTextView作为项目尽可能多地填充painWorse。所以一旦你能做到以下几点:

  1. 将您的LinearLayout更改为String[] items = pain.split(",");垂直方向
  2. 将您的字符串分成几个项LinearLayout
  3. 以新的for (String item : items) { TextView tv = new TextView(context); tv.setText(item); // any other styling here... }

    填写
    tracking table
    
     id | labref | user_id
     -----------------------
     1  |   a    |  1
     ------------------------
     2  |   a    |  3
     ------------------------
     3  |   b    |  4
     ------------------------
     5  |   b    |  7
     ------------------------
    

答案 1 :(得分:0)

您可以使用GSON / Jackson来解析JSON对象。你会发现很多注释可以在这些库中排除EMPTY,NULL等。它们还提供了更容易阅读的代码

此处给出了使用GSON的示例

https://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format-gson-api/