job id 和 user id 会发送到PHP MySQL数据库。但是这里每个工作申请只传递一个 job id 。所以我不能申请另一份工作，因为job id已在数据库中。
所以如何在共享首选项中保存json对象以及如何检索它。
请帮我。帮助将不胜感激......
模型类
public class getData {
public String job_title = "";
public String job_description = "";
public String address = "";
public String job_type="";
public String city="";
public String job_id="";
public String getJob_description() {
return job_description;
}
public void setJob_description(String job_description) {
this.job_description = job_description;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getJob_type() {
return job_type;
}
public void setJob_type(String job_type) {
this.job_type = job_type;
}
public String getJob_title() {
return job_title;
}
public void setJob_title(String job_title) {
this.job_title = job_title;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getJob_id() {
return job_id;
}
public void setJob_id(String job_id) {
this.job_id = job_id;
}
}
控制器类
public class ParserCard extends AsyncTask<Void, Integer, Integer> {
Context c;
String data;
SwipeDeck swipeDeck;
ProgressDialog pd;
ArrayList<getData> arrayList = new ArrayList<getData>();
private SwipeDeckAdapter adapter;
public static String job;
public ParserCard(Context c, String data, SwipeDeck swipeDeck) {
this.c = c;
this.data = data;
this.swipeDeck = swipeDeck;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
pd = new ProgressDialog(c);
pd.setTitle("Parser");
pd.setMessage("Parsing....");
pd.show();
}
@Override
protected Integer doInBackground(Void... params) {
return this.parse();
}
@Override
protected void onPostExecute(Integer integer) {
super.onPostExecute(integer);
pd.dismiss();
if(integer == 1){
adapter = new SwipeDeckAdapter(arrayList, c);
swipeDeck.setAdapter(adapter);
//Toast.makeText(c, arrayList.size()+"", Toast.LENGTH_LONG).show();
}else {
Toast.makeText(c, "Unable to get data from server", Toast.LENGTH_LONG).show();
}
}
private int parse(){
try {
JSONArray jsonArray = new JSONArray(data);
arrayList.clear();
for (int i = 0; i<jsonArray.length(); i++){
getData pd = new getData();
JSONObject jsonObject = jsonArray.getJSONObject(i);
pd.setJob_title(jsonObject.getString("job_title"));
pd.setJob_type(jsonObject.getString("job_type"));
pd.setJob_description(jsonObject.getString("job_description"));
pd.setAddress(jsonObject.getString("address"));
pd.setCity(jsonObject.getString("city"));
pd.setJob_id(jsonObject.getString("job_id"));
job=jsonObject.getString("job_id");
SharedPreferences.Editor editor = c.getSharedPreferences(Config.SHARED_PREF_NAME, MODE_PRIVATE).edit();
editor.putString("jobId", job);
editor.commit();
arrayList.add(pd);
}
return 1;
} catch (JSONException e) {
Log.e("sopheak", e.toString());
e.printStackTrace();
}
return 0;
}
}
适配器类
public class SwipeDeckAdapter extends BaseAdapter {
private ArrayList<getData> data;
private Context context;
LayoutInflater mInflater;
public SwipeDeckAdapter(ArrayList<getData> data, Context context) {
this.data = data;
this.context = context;
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
mInflater = LayoutInflater.from(context);
View v = convertView;
if (v == null) {
v = mInflater.inflate(R.layout.cardview, null);
}
getData pd = new getData();
// ImageView imageView = (ImageView) v.findViewById(R.id.offer_image);
TextView tv_title = (TextView)v.findViewById(R.id.cardviewjobheading);
TextView tv_description= (TextView)v.findViewById(R.id.cardviewJobDescription);
TextView tv_jobtype = (TextView)v.findViewById(R.id.cardviewJobTime);
TextView tv_companyadress = (TextView)v.findViewById(R.id.cardviewcompanyname);
TextView tv_companycity = (TextView)v.findViewById(R.id.cardviewcompanyaddress);
TextView tv_jobid=(TextView)v.findViewById(R.id.cardviewjobid);
tv_title .setText(data.get(position).getJob_title().toString());
tv_jobtype.setText(data.get(position).getJob_type().toString());
tv_description.setText(data.get(position).getJob_description().toString());
tv_companyadress.setText(data.get(position).getAddress().toString());
tv_companycity.setText(data.get(position).getCity().toString());
tv_jobid.setText(data.get(position).getJob_id().toString());
v.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
return v;
}
}
主要活动
public class MainActivity extends AppCompatActivity {
private SwipeDeck cardStack;
private ProgressDialog pDialog;
RequestQueue requestQueue;
String jobid;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tindercard);
//FOR ACTION BAR
ActionBar actionBar = getSupportActionBar();
//GET BG IMAGE AS BITMAP
BitmapDrawable background = new BitmapDrawable(BitmapFactory.decodeResource(getResources(), R.drawable.toolbar));
//SET BG
actionBar.setBackgroundDrawable(background);
// getSupportActionBar().hide();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
cardStack = (SwipeDeck)findViewById(R.id.swipe_deck);
ImageButton btn2 = (ImageButton)findViewById(R.id.rejectBtn);
ImageButton btn = (ImageButton)findViewById(R.id.acceptBtn);
cardStack.setHardwareAccelerationEnabled(true);
String titles = getIntent().getExtras().getString("title");
String locations = getIntent().getExtras().getString("location");
String urlData = "https://alot.ae/api/joblist.php?job_title="+titles+"&city="+locations;
urlData = urlData.replaceAll(" ", "%20");
final DownloaderCard dl = new DownloaderCard(MainActivity.this,urlData , cardStack);
dl.execute();
cardStack.setEventCallback(new SwipeDeck.SwipeEventCallback() {
@Override
public void cardSwipedLeft(int position) {
// Log.i("MainActivity", "card was swiped left, position in adapter: " + position);
}
@Override
public void cardSwipedRight(int position) {
saveinformation();
}
@Override
public void cardsDepleted() {
MaterialToast materialToast=new MaterialToast(MainActivity.this);
materialToast.show("No Jobs Available", ContextCompat.getDrawable(MainActivity.this,R.drawable.toast_drawable),
ContextCompat.getColor(MainActivity.this,R.color.colorAccent),
Gravity.CENTER_HORIZONTAL);
}
@Override
public void cardActionDown() {
// Log.i(TAG, "cardActionDown");
}
@Override
public void cardActionUp() {
// Log.i, "cardActionUp");
}
});
cardStack.setLeftImage(R.id.left_image);
cardStack.setRightImage(R.id.right_image);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cardStack.swipeTopCardLeft(180);
}
});
btn2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cardStack.swipeTopCardRight(180);
}
});
}
private void saveinformation() {
pDialog = new ProgressDialog(this);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST, Config.URL_APPLYJOB,
new Response.Listener<String>() {
@Override
public void onResponse(String ServerResponse) {
// Hiding the progress dialog after all task complete.
pDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(ServerResponse);
if (jsonObject.getInt("success") == 0) {
Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
} else if (jsonObject.getInt("success") == 1) {
// Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
MaterialToast materialToast=new MaterialToast(MainActivity.this);
materialToast.show(jsonObject.getString("message"), ContextCompat.getDrawable(MainActivity.this,R.drawable.toast_drawable),
ContextCompat.getColor(MainActivity.this,R.color.colorAccent),
Gravity.CENTER_HORIZONTAL);
} else
Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError volleyError) {
pDialog.dismiss();
MaterialToast materialToast=new MaterialToast(MainActivity.this);
materialToast.show("Check Internet Connection", ContextCompat.getDrawable(MainActivity.this,R.drawable.toast_drawable),
ContextCompat.getColor(MainActivity.this,R.color.colorAccent),
Gravity.CENTER_HORIZONTAL);
}
}) {
@Override
protected Map<String, String> getParams() {
// Creating Map String Params.
Map<String, String> params = new HashMap<String, String>();
// Adding All values to Params.
SharedPreferences prefs = getApplicationContext().getSharedPreferences(Config.SHARED_PREF_NAME, Context.MODE_PRIVATE);
String userid = prefs.getString("userId","");
String jobid = prefs.getString("jobId","");
params.put("user_id",userid);
params.put("job_id",jobid);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
答案 0 :(得分：0)
您无法保存 JSON对象。但您可以保存 JSON字符串。
SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
editor.putString("key_from_json", "String_value_from_json");
editor.putInt("key_from_json","int_value_from_json");
editor.commit();
答案 1 :(得分：0)
每个键只有一个值，因此您只能使用值保存键job_id。如果要保存多个作业，则应将其另存为列表。例如：
List<String> jobs = new ArrayList<>();
for (int i = 0; i<jsonArray.length(); i++){
getData pd = new getData();
JSONObject jsonObject = jsonArray.getJSONObject(i);
pd.setJob_title(jsonObject.getString("job_title"));
pd.setJob_type(jsonObject.getString("job_type"));
pd.setJob_description(jsonObject.getString("job_description"));
pd.setAddress(jsonObject.getString("address"));
pd.setCity(jsonObject.getString("city"));
pd.setJob_id(jsonObject.getString("job_id"));
jobs.add(jsonObject.getString("job_id"));
arrayList.add(pd);
}
SharedPreferences.Editor editor = c.getSharedPreferences(Config.SHARED_PREF_NAME, MODE_PRIVATE).edit();
editor.putString("jobId", new Gson().toJson(jobs));
// you should use Gson lib to convert string to object and object to string
editor.commit();