您好我的应用程序获取数据库中显示的表格布局中的数据。
现在我有一个提交按钮，如果我点击提交按钮我想显示数据库显示到我的布局中的数据。我希望匹配类和部分基于我想显示数据。
任何人都可以帮助我。
类文件
public class Attend extends Activity {
String data = "";
TableLayout tl;
TableRow tr;
TextView label;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tl = (TableLayout) findViewById(R.id.maintable);
final DataseData getdb = new DataseData();
new Thread(new Runnable() {
public void run() {
data = getdb.getDataFromDB();
System.out.println(data);
runOnUiThread(new Runnable() {
@Override
public void run() {
ArrayList<Users> users = parseJSON(data);
addData(users);
}
});
}
}).start();
}
public ArrayList<Users> parseJSON(String result) {
ArrayList<Users> users = new ArrayList<Users>();
try {
JSONArray jArray = new JSONArray(result);
for (int i = 0; i < jArray.length(); i++) {
JSONObject json_data = jArray.getJSONObject(i);
Users user = new Users();
user.setId(json_data.getInt("id"));
user.setClassname(json_data.getString("classname"));
user.setSectionname(json_data.getString("sectionname"));
//user.setDate(json_data.getString("date"));
users.add(user);
}
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
return users;
}
void addHeader(){
tr = new TableRow(this);
label = new TextView(this);
label.setText("classname");
label.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
label.setPadding(5, 5, 5, 5);
label.setBackgroundColor(Color.RED);
LinearLayout Ll = new LinearLayout(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(5, 5, 5, 5);
Ll.addView(label,params);
tr.addView((View)Ll);
TextView sectionname = new TextView(this);
sectionname.setText("sectionname");
sectionname.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
sectionname.setPadding(5, 5, 5, 5);
sectionname.setBackgroundColor(Color.RED);
Ll = new LinearLayout(this);
params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(0, 5, 5, 5);
Ll.addView(sectionname,params);
tr.addView((View)Ll);
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
/*TextView date = new TextView(this);
date.setText("date");
date.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
date.setPadding(5, 5, 5, 5);
date.setBackgroundColor(Color.RED);
Ll = new LinearLayout(this);
params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(0, 5, 5, 5);
Ll.addView(date,params);
tr.addView((View)Ll);
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));*/
}
@SuppressWarnings({ "rawtypes" })
public void addData(ArrayList<Users> users) {
addHeader();
for (Iterator i = users.iterator(); i.hasNext();) {
Users p = (Users) i.next();
/** Create a TableRow dynamically **/
tr = new TableRow(this);
/** Creating a TextView to add to the row **/
label = new TextView(this);
label.setText(p.getClassname());
label.setText(p.getSectionname());
//label.setText(p.getDate());
label.setId(p.getId());
label.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
label.setPadding(5, 5, 5, 5);
LinearLayout Ll = new LinearLayout(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(5, 2, 2, 2);
Ll.addView(label,params);
tr.addView((View)Ll);
TextView classname = new TextView(this);
classname.setText(p.getClassname());
classname.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
classname.setPadding(5, 5, 5, 5);
Ll = new LinearLayout(this);
params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(0, 3, 3, 3);
Ll.addView(classname,params);
tr.addView((View)Ll);
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
TextView sectionname = new TextView(this);
sectionname.setText(p.getClassname());
sectionname.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
sectionname.setPadding(5, 5, 5, 5);
label.setBackgroundColor(Color.GRAY);
Ll = new LinearLayout(this);
params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(0, 3, 3, 3);
Ll.addView(sectionname,params);
tr.addView((View)Ll);
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
TextView date = new TextView(this);
date.setText(p.getClassname());
date.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
date.setPadding(5, 5, 5, 5);
Ll = new LinearLayout(this);
params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(0, 3, 3, 3);
Ll.addView(classname,params);
tr.addView((View)Ll);
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
}
MainActivity.lass
public class AndroidSpinnerExampleActivity extends Activity implements OnClickListener{
private EditText fromDateEtxt;
private DatePickerDialog fromDatePickerDialog;
private SimpleDateFormat dateFormatter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Spinner element
Spinner spinner = (Spinner) findViewById(R.id.spinner);
Spinner spinner1 = (Spinner) findViewById(R.id.spinner1);
Button submit=(Button)findViewById(R.id.button1);
submit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getApplicationContext(),Attend.class);
startActivity(intent);
}
});
dateFormatter = new SimpleDateFormat("dd-MM-yyyy", Locale.US);
findViewsById();
setDateTimeField();
// Spinner click listener
//spinner.setOnItemSelectedListener(this);
// Spinner Drop down elements
List<String> classnames = new ArrayList<String>();
classnames.add("Select");
classnames.add("Play Group");
classnames.add("Nursery");
classnames.add("Lkg");
classnames.add("Ukg");
classnames.add("Fifth");
classnames.add("Sixth");
List<String> sectionnames = new ArrayList<String>();
sectionnames.add("Select");
sectionnames.add("Batch A");
sectionnames.add("Batch B");
sectionnames.add("Batch C");
sectionnames.add("Batch D");
sectionnames.add("Batch E");
sectionnames.add("Batch F");
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, classnames);
ArrayAdapter<String> dataAdapter1 = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, sectionnames);
// Drop down layout style - list view with radio button
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
dataAdapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner.setAdapter(dataAdapter);
spinner1.setAdapter(dataAdapter1);
}
private void findViewsById() {
fromDateEtxt = (EditText) findViewById(R.id.etxt_fromdate);
fromDateEtxt.setInputType(InputType.TYPE_NULL);
fromDateEtxt.requestFocus();
//toDateEtxt = (EditText) findViewById(R.id.etxt_todate);
//toDateEtxt.setInputType(InputType.TYPE_NULL);
}
private void setDateTimeField() {
fromDateEtxt.setOnClickListener(this);
//toDateEtxt.setOnClickListener(this);
Calendar newCalendar = Calendar.getInstance();
fromDatePickerDialog = new DatePickerDialog(this, new OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar newDate = Calendar.getInstance();
newDate.set(year, monthOfYear, dayOfMonth);
fromDateEtxt.setText(dateFormatter.format(newDate.getTime()));
}
},newCalendar.get(Calendar.YEAR), newCalendar.get(Calendar.MONTH), newCalendar.get(Calendar.DAY_OF_MONTH));
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
@Override
public void onClick(View view) {
if(view == fromDateEtxt) {
fromDatePickerDialog.show();
}
}