2 つのアクティビティがあり、最初のアクティビティはいくつかのデータを含むテーブル レイアウトを表示します (このデータは Web アプリケーションからの応答として取得されます)。行をクリックすると、他のテーブル レイアウトを表示するアクティビティ 2 が開始されます。同じ画面にボタンがあり、クリックするとアクティビティ 1 が再開されます。アクティビティ 1 が再びサーバーにヒットして応答を取得するのを防ぐにはどうすればよいでしょうか。アクティビティ 2 の開始前に取得されたデータを表示する必要があります。
これは私の活動の1つです:
public class CaptureActivity extends Activity {
//private String url = "http";
private String url = "http:";
FetchEmployeeAsyncTask employeeAsyncTask;
SelectedEmployeeAsyncTask selectedEmployeeAsyncTask;
private ArrayList<Employee> employees = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
employeeAsyncTask = new FetchEmployeeAsyncTask(this);
selectedEmployeeAsyncTask = new SelectedEmployeeAsyncTask(this);
employeeAsyncTask.execute(new String[] {url});
System.out.println("Status "+employeeAsyncTask.getStatus());
setContentView(R.layout.activity_capture);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_capture, menu);
return true;
}
public void showEmployees(ArrayList<Employee> employees) {
// TODO Auto-generated method stub
System.out.println("Status 2 "+employeeAsyncTask.getStatus());
TableLayout employeeTable = (TableLayout) findViewById(R.id.main_table);
TableRow header = new TableRow(this);
header.setId(100);
header.setBackgroundColor(Color.rgb(255, 165, 0));
//header.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
TextView empCodeHeader = new TextView(this);
empCodeHeader.setId(200);
empCodeHeader.setText("Employee Code");
empCodeHeader.setTextSize(16);
empCodeHeader.setPadding(2,2,2,2);
empCodeHeader.setWidth(200);
header.addView(empCodeHeader);
TextView empNameHeader = new TextView(this);
empNameHeader.setId(201);
empNameHeader.setText("Employee Name");
empNameHeader.setTextSize(16);
empNameHeader.setPadding(2,2,2,2);
empNameHeader.setWidth(300);
header.addView(empNameHeader);
employeeTable.addView(header);//, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
for(int i=0; i<employees.size();i++){
final Employee employee = (Employee) employees.get(i);
int count = 0;
TableRow empData = new TableRow(this);
empData.setId(300+count);
empData.setClickable(true);
/*empData.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT ));*/
//tr.setClickable(true);
final TextView empCode = new TextView(this);
empCode.setId(300+count);
empCode.setText(employee.getCode());
empCode.setTextSize(16);
empCode.setPadding(2,2, 2, 2);
empData.addView(empCode);
final TextView empName = new TextView(this);
empName.setId(300+count);
empName.setText(employee.getFirstName()+","+employee.getLastName());
empName.setTextSize(16);
empName.setPadding(2, 2, 2, 2);
empData.addView(empName);
employeeTable.addView(empData); /*, new TableLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));*/
count++;
empData.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String employeeUrl = "http://192.168.2.166:8680/capture/clientRequest.do?r=employeeList&code="+employee.getCode()+"&cid=0&mode=full";
selectedEmployeeAsyncTask.execute(new String[] {employeeUrl});
}
});
}
}
public void display(ArrayList<Employee> employees){
System.out.println("in here !! ");
HashMap<String, String> empMap = null;
for (int i = 0;i<employees.size(); i++){
final Employee empDetails = (Employee) employees.get(i);
empMap = new HashMap<String, String>();
empMap.put("Honorific", empDetails.getHonorific());
empMap.put("First Name", empDetails.getFirstName());
empMap.put("Last Name", empDetails.getLastName());
empMap.put("Call Name", empDetails.getCallName());
empMap.put("Gender", empDetails.getGender());
empMap.put("Designation", empDetails.getDesignation());
empMap.put("Level", empDetails.getLevel());
empMap.put("Stream", empDetails.getStream());
empMap.put("Mobile", empDetails.getMobile());
empMap.put("Phone", empDetails.getPhone());
empMap.put("Email", empDetails.getEmail());
empMap.put("DOB", empDetails.getDob());
empMap.put("DOJ", empDetails.getDoj());
empMap.put("Present Address", empDetails.getPresentAddress());
empMap.put("Permanent Address", empDetails.getPermanentAddress());
empMap.put("Status", empDetails.getStatus());
empMap.put("Company Id", empDetails.getCompanyId());
empMap.put("PM User Id", empDetails.getPMUserId());
empMap.put("PM Code", empDetails.getPmCode());
empMap.put("PM First Name", empDetails.getPmFirstName());
empMap.put("PM Last Name", empDetails.getPmLastName());
empMap.put("PM Call Name", empDetails.getPmCallName());
empMap.put("PM Email", empDetails.getPmEmail());
empMap.put("Nationality", empDetails.getNationality());
empMap.put("Blood Group", empDetails.getBloodGroup());
empMap.put("Marital Status", empDetails.getMaritalStatus());
empMap.put("Language", empDetails.getLanguage());
empMap.put("Guardian Name", empDetails.getGuardianName());
empMap.put("Guardian Type", empDetails.getGuardianType());
empMap.put("Desk No", empDetails.getDeskNo());
empMap.put("Extn No", empDetails.getExtnNo());
empMap.put("Designation Id", empDetails.getDesignationId());
empMap.put("Level Id", empDetails.getLevelId());
empMap.put("Stream Id", empDetails.getStreamId());
empMap.put("Created By", empDetails.getCreatedBy());
empMap.put("Date Created", empDetails.getDateCreated());
empMap.put("Personal Email", empDetails.getPersonalEmail());
empMap.put("Photo Id", empDetails.getPhotoId());
empMap.put("Place of Issue", empDetails.getPlaceOfIssue());
empMap.put("Date of Issue", empDetails.getDateOfIssue());
empMap.put("Inactive Status Type", empDetails.getInactiveStatusType());
empMap.put("Date Status", empDetails.getDateStatus());
empMap.put("Image", empDetails.getImage());
}
Intent displaySelectedIntent = new Intent(this,DisplaySelectedActivity.class);
displaySelectedIntent.putExtra("empDetailsMap", empMap);
startActivity(displaySelectedIntent);
}
/**
* @return the employees
*/
public ArrayList<Employee> getEmployees() {
return employees;
}
/**
* @param employees the employees to set
*/
public void setEmployees(ArrayList<Employee> employees) {
this.employees = employees;
}
}
これは私の活動です 2:
public class DisplaySelectedActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_selected);
HashMap<String , String> listemp = (HashMap<String, String>)getIntent().getSerializableExtra("empDetailsMap");
TableLayout displaySelected = (TableLayout) findViewById(R.id.displaySelected);
for (Map.Entry entry : listemp.entrySet()) {
TableRow tr_inner = new TableRow(DisplaySelectedActivity.this);
if(!entry.getKey().toString().equalsIgnoreCase("Image")){
TextView key = new TextView(this);
key.setId(400);
key.setText(entry.getKey().toString());
key.setTextSize(15);
key.setTextColor(Color.RED);
//key.setBackgroundColor(Color.YELLOW);
tr_inner.addView(key);
TextView value = new TextView(this);
value.setId(500);
value.setText(entry.getValue().toString());
value.setTextSize(15);
tr_inner.addView(value);
/*Bitmap bm = BitmapFactory.decodeFile(pathName)
ImageView empImage = (ImageView) findViewById(R.id.empImage);
empImage.setImageBitmap(bm)
*/
displaySelected.addView(tr_inner);/*, new TableLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));*/
}
else
{
System.out.println("in else1111");
byte[] imageAsBytes = Base64.decode(entry.getValue().toString().getBytes(), 0);
//Bitmap bm = BitmapFactory.decodeFile(entry.getValue().toString());
ImageView empImage = (ImageView) findViewById(R.id.empImage);
empImage.setImageBitmap( BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAsBytes.length));
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_display_selected, menu);
return true;
}
public void goBack(View view){
Intent intent = new Intent(this,CaptureActivity.class);
startActivity(intent);
}}
ボタンが押されると、アクティビティ 2 の goBack() が呼び出されます...