【发布时间】：2019-09-16 22:14:23
【问题描述】：
我正在使用 API 请求接收的输入创建表单，我使用 switch 来创建每个表单，它的 'type' ，例如 if type=='text' var = editText , type=='title ' var = 'textview' 并且如果 type='submit' var = button。
我在 API 中使用 volley，我需要在用户提交表单后提交表单，但我不知道如何获取变量列表及其数据（因为它们是动态创建的，我不知道)。
switch (type) {
case "text":
LinearLayout lyt = new LinearLayout(context);
lyt.setOrientation(LinearLayout.HORIZONTAL);
ViewGroup.LayoutParams prms = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.MATCH_PARENT, Float.parseFloat(rowObj.getString("colSpan")));
lyt.setLayoutParams(prms);
TextView textViewLabel = new TextView(context);
textViewLabel.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
textViewLabel.setTypeface(null, Typeface.BOLD);
textViewLabel.setText(rowObj.getString("label"));
textViewLabel.setMaxWidth(150);
lyt.addView(textViewLabel);
EditText editText = new EditText(context);
LinearLayout.LayoutParams paramsL = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
paramsL.setMargins(15, 0,0,0);
if(rowObj.has("maxLength")) {
InputFilter[] fArray = new InputFilter[1];
fArray[0] = new InputFilter.LengthFilter(Integer.parseInt(rowObj.getString("maxLength")));
editText.setFilters(fArray);
}
editText.setLayoutParams(paramsL);
editText.setSingleLine(true);
editText.setWidth(500);
editText.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
lyt.addView(editText);
parent.addView(lyt);
break;
case "textarea":
LinearLayout lyt2 = new LinearLayout(context);
lyt2.setOrientation(LinearLayout.HORIZONTAL);
ViewGroup.LayoutParams prms2 = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.MATCH_PARENT, Float.parseFloat(rowObj.getString("colSpan")));
lyt2.setLayoutParams(prms2);
TextView textViewLabel2 = new TextView(context);
textViewLabel2.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
textViewLabel2.setTypeface(null, Typeface.BOLD);
textViewLabel2.setMaxWidth(150);
textViewLabel2.setText(rowObj.getString("label"));
lyt2.addView(textViewLabel2);
EditText editText2 = new EditText(context);
LinearLayout.LayoutParams paramsL1 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
paramsL1.setMargins(15, 0,0,0);
if(rowObj.has("maxLength")) {
InputFilter[] fArray1 = new InputFilter[1];
fArray1[0] = new InputFilter.LengthFilter(Integer.parseInt(rowObj.getString("maxLength")));
editText2.setFilters(fArray1);
}
editText2.setLayoutParams(paramsL1);
editText2.setSingleLine(true);
editText2.setWidth(500);
editText2.setHeight(300);
editText2.setEms(10);
editText2.setLineSpacing(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 5.0f, getResources().getDisplayMetrics()), 1.0f);
editText2.setInputType(InputType.TYPE_TEXT_FLAG_MULTI_LINE|InputType.TYPE_CLASS_TEXT);
editText2.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
lyt2.addView(editText2);
parent.addView(lyt2);
break;
case "image":
LinearLayout lLayout1 = new LinearLayout(context);
ViewGroup.LayoutParams params1 = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.MATCH_PARENT, Float.parseFloat(rowObj.getString("colSpan")));
lLayout1.setLayoutParams(params1);
ImageView imageView = new ImageView(context);
imageView.setPadding(5,5,5,5);
Picasso.with(context).load(rowObj.getString("src")).into(imageView);
lLayout1.addView(imageView);
parent.addView(lLayout1);
break;
case "title":
TextView textView = new TextView(context);
ViewGroup.LayoutParams params2 = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, Float.parseFloat(rowObj.getString("colSpan")));
textView.setLayoutParams(params2);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
textView.setTypeface(null, Typeface.BOLD);
textView.setText(rowObj.getString("label"));
parent.addView(textView);
break;
case "subtitle":
TextView textView1 = new TextView(context);
ViewGroup.LayoutParams params3 = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.MATCH_PARENT, Float.parseFloat(rowObj.getString("colSpan")));
textView1.setLayoutParams(params3);
textView1.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
textView1.setText(rowObj.getString("label"));
parent.addView(textView1);
break;
case "file":
break;
case "radio":
LinearLayout lyt3 = new LinearLayout(context);
lyt3.setOrientation(LinearLayout.VERTICAL);
ViewGroup.LayoutParams prms3 = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.MATCH_PARENT, Float.parseFloat(rowObj.getString("colSpan")));
lyt3.setLayoutParams(prms3);
TextView textViewLabel3 = new TextView(context);
textViewLabel3.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
textViewLabel3.setTypeface(null, Typeface.BOLD);
textViewLabel3.setText(rowObj.getString("label"));
lyt3.addView(textViewLabel3);
// Initialize a new RadioGroup
RadioGroup rg = new RadioGroup(context);
rg.setOrientation(RadioGroup.VERTICAL);
if(rowObj.has("options")){
JSONArray options = rowObj.getJSONArray("options");
if(options.length()>0){
for (int i=0; i<options.length(); i++){
JSONObject radioObj = options.getJSONObject(i);
// Create another Radio Button for RadioGroup
RadioButton rb = new RadioButton(context);
rb.setText(radioObj.getString("label"));
rb.setTextColor(Color.BLACK);
rg.addView(rb);
}
}
}
lyt3.addView(rg);
parent.addView(lyt3);
break;
case "submit":
Button button = new Button(context);
ViewGroup.LayoutParams params = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.WRAP_CONTENT, Float.parseFloat(rowObj.getString("colSpan")));
button.setLayoutParams(params);
button.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
button.setSingleLine(true);
button.setText(rowObj.getString("label"));
button.setTextColor(Color.WHITE);
parent.addView(button);
break;
case "hidden":
break;
}
}else {
TextView view = new TextView(context);
ViewGroup.LayoutParams params3 = new LinearLayout.LayoutParams(0, ViewGroup.LayoutParams.MATCH_PARENT, Float.parseFloat(rowObj.getString("colSpan")));
view.setLayoutParams(params3);
view.setBackgroundColor(Color.WHITE);
view.setText("");
parent.addView(view);
}
}
我想将变量放在 JSON 数组中以发送 POST 请求：
[
{
"variable1": "value1",
"variable2": "value2",
...
}
]
【问题讨论】：
-
哪些变量？为什么不全局定义它们，然后在 switch case 中覆盖它们，最后你构建你的 JSON 数组......很难得到你想要的。
-
你能举个例子吗？
-
你甚至不说是哪些变量。
标签： android json rest android-volley