我在没有 xml 文件的情况下动态创建片段现在我想从父活动调用片段中的方法所以我该怎么做才能让任何人知道它，我发现了很多问题，但他们正在使用 xml
碎片活动
public class HomeActivity extends FragmentActivity implements OnClickListener {
public static final String TAG = HomeActivity.class.getSimpleName();
PageIndicator mIndicator;
//Spinner spinner1;
ImageView serversetting,dropdown;
TextView selectrange;
int num,counter=0;
String url,apiUser,apipass,TestAccount;
/* public static HomeActivity newInstance() {
return new HomeActivity();
}*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_parent);
ViewPager mViewPager = (ViewPager) findViewById(R.id.viewpager);
selectrange=(TextView)findViewById(R.id.selectrange);
serversetting=(ImageView)findViewById(R.id.settingsserver);
dropdown=(ImageView)findViewById(R.id.dropdown);
mViewPager.setAdapter(new MyAdapter(getSupportFragmentManager()));
mIndicator = (CirclePageIndicator)findViewById(R.id.indicator);
mIndicator.setViewPager(mViewPager);
selectrange.setOnClickListener(this);
dropdown.setOnClickListener(this);
serversetting.setOnClickListener(this);
/*spinner1 = (Spinner) findViewById(R.id.spinner1);
List<String> list = new ArrayList<String>();
list.add("Current Month");
list.add("Last Month");
list.add("Last 5 Days");
list.add("Last 10 Days");
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
R.layout.spinner_layout,R.id.spinnerTarget,list);
//dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
serversetting.setOnClickListener(this);
spinner1.setAdapter(dataAdapter);
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id) {
// TODO Auto-generated method stub
Toast.makeText(parent.getContext(),
"OnItemSelectedListener : " + parent.getItemAtPosition(pos).toString(),
Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});*/
}
public class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
return 3;
}
@Override
public Fragment getItem(int position) {
/* Bundle args = new Bundle();
args.putInt(TextViewFragment.POSITION_KEY, position);
return TextViewFragment.newInstance(args);*/
Fragment f=new Fragment();
switch(position) {
case 0:
f= new SalesGraphFragment();
break;
case 1:
f=new OrderGraphFragment();
break;
case 2:
f=new UserGraphFragment();
break;
}
return f;
}
/*@Override
public CharSequence getPageTitle(int position) {
return "Fragment # " + position;
}*/
}
@Override
protected void onStart()
{
super.onStart();
EasyTracker.getInstance().activityStart(this);
}
@Override
protected void onStop()
{
super.onStop();
EasyTracker.getInstance().activityStop(this);
}
void SelectRangeDialog()
{
final CharSequence[] list = {"All time","Current Month","Last Month","Today","YesterDay"};
AlertDialog.Builder alert = new AlertDialog.Builder(HomeActivity.this);
if(counter==0)
{
num=1;
counter++;
}
alert.setTitle("Range");
alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
//selectrange.setText(list[which]);
// new ChangeStatusAsync().execute();
}
});
/*if(status.equals("Order Pending"))
num=0;
else if(status.equals("Upfront Received"))
num=1;
else if(status.equals("Payment Complete"))
num=2;*/
alert.setSingleChoiceItems(list,num, new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
//newstatus=list[which].toString();
selectrange.setText(list[which]);
num=which;
}
});
alert.show();
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.settingsserver:
Intent settings=new Intent(HomeActivity.this,SettingsActivity.class);
startActivity(settings);
break;
case R.id.selectrange:
SelectRangeDialog();
break;
case R.id.dropdown:
SelectRangeDialog();
break;
default:
break;
}
}
}
分段
public class SalesGraphFragment extends Fragment {
public static final String POSITION_KEY = "com.burnside.embeddedfragmenttest.POSITION";
public static final String TITLE_KEY = "com.burnside.embeddedfragmenttest.TITLE";
Object saleData[];
String strSales="";
TextView txt;
public Object b;
List array;
public Object [] objects;
public static SalesGraphFragment INSTANCE;
LinearLayout layout;
String sessionId,url,amount,apiUser,apipass,TestAccount;
MagentoStoreLogin sales=new MagentoStoreLogin();
public ProgressDialog order_dialog;
public static SalesGraphFragment newInstance(Bundle args) {
SalesGraphFragment fragment = new SalesGraphFragment();
fragment.setArguments(args);
ProgressDialog order_dialog;
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try{
TestAccount=getActivity().getIntent().getExtras().getString("TestAccount");
if(TestAccount==null)
TestAccount="";
if(TestAccount.equals("TestAccount"))
{
url =getActivity().getIntent().getExtras().getString("defaulturl");
apiUser=getActivity().getIntent().getExtras().getString("defaultapiuser");
apipass=getActivity().getIntent().getExtras().getString("defaultapipass");
System.out.println(url + apipass + apiUser);
}
else
{
url=PreferenceConnector.readString(getActivity(),PreferenceConnector.URL, null);
System.out.println("URL is:"+url);
apiUser=PreferenceConnector.readString(getActivity(),PreferenceConnector.APIUSER, null);
apipass=PreferenceConnector.readString(getActivity(),PreferenceConnector.APIPASS, null);
new saleDetail().execute();
new GraphValue().execute();
System.out.println(url + apipass + apiUser);
}
if(url!=null&&url!="")
{
//Load the first 12 items
// counter=0;
}
else
{
Toast.makeText(getActivity(),"Please do the API settings first", 1).show();
}
}
catch(Exception e)
{
Toast.makeText(getActivity(),"Please do the settings first Exception", 1).show();
// uName.setText("");
// password.setText("");
}
}
public static SalesGraphFragment getSaleInstance()
{
return INSTANCE;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
setHasOptionsMenu(true);
return inflater.inflate(R.layout.sales_fragment, container, false);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
if(!TestAccount.equals("TestAccount"))
{
GraphViewSeries exampleSeries = new GraphViewSeries(new GraphViewData[] {
new GraphViewData(5, 2.0d)
, new GraphViewData(4, 1.0d)
, new GraphViewData(3, 3.0d) // another frequency
, new GraphViewData(2, 2.0d)
, new GraphViewData(1, 1.0d)
, new GraphViewData(0, 6.0d)
});
// graph with dynamically genereated horizontal and vertical labels
GraphView graphView;
graphView = new LineGraphView(
getActivity() // context
, "" // heading
);
graphView.addSeries(exampleSeries); // data
// LinearLayout layout = (LinearLayout) findViewById(R.id.graph1);
// layout.addView(graphView);
// graph with custom labels and drawBackground
((LineGraphView) graphView).setDrawBackground(true);
// custom static labels
// graphView.setHorizontalLabels(new String[] {"2 days ago", "yesterday", "today", "tomorrow"});
// graphView.setVerticalLabels(new String[] {"high", "middle", "low"});
//graphView.addSeries(exampleSeries); // data
//graphView.setViewPort(2, 5);
//graphView.setBackgroundColor(Color.WHITE);
// graphView.set
layout = (LinearLayout) view.findViewById(R.id.salesgraph);
txt=(TextView) view.findViewById(R.id.salesamount);
txt.setText(getData());
layout.addView(graphView);
}
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// TODO Add your menu entries here
inflater.inflate(R.menu.optionmenus, menu);
super.onCreateOptionsMenu(menu, inflater);
}
// Handle click events
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.aboutus:
Intent aboutus=new Intent(getActivity(),AboutUs.class);
startActivity(aboutus);
return true;
case R.id.settings:
Intent settings=new Intent(getActivity(),SettingsActivity.class);
startActivity(settings);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
public String getData()
{
return strSales;
}
public void setSessionId(String sessionId)
{
this.sessionId=sessionId;
}
public class saleDetail extends AsyncTask<Void,Integer,Object>
{
ProgressBar progressBar;
@Override
protected Object doInBackground(Void... params) {
try
{ if(sessionId==null)
{
sessionId=sales.login(url, apiUser, apipass);
setSessionId(sessionId);
}
b=sales. getSaleInfo(sessionId,url);
} catch (Exception e) {
e.printStackTrace();
System.out.println("Getting Order Error:"+e.getMessage());
//customer_results=null;
}
//}
return b;
}
@Override
protected void onPreExecute()
{
order_dialog = ProgressDialog.show(getActivity(),"Getting Sales Information...", "Please wait while loading", true);
}
protected void onPostExecute(final Object object)
{
order_dialog.dismiss();
if(object!=null)
{
System.out.println("Dismiss Called");
Map<String, Double> mappedData=(Map)object;
Double sales=mappedData.get("Total Sale");
double finalValue = Math.round( sales * 100.0 ) / 100.0;
strSales=""+finalValue;
txt.setText(finalValue+"");
//setData(object);
}
else
{
Toast.makeText(getActivity(),"You Dont have our package", 10).show();
}
}
}
public class GraphValue extends AsyncTask<Void,Integer,Object[]>
{
ProgressBar progressBar;
@Override
protected Object[] doInBackground(Void... params) {
try
{ if(sessionId==null)
{
sessionId=sales.login(url, apiUser, apipass);
setSessionId(sessionId);
}
objects=sales.getGraphValue(sessionId,url);
} catch (Exception e) {
e.printStackTrace();
System.out.println("Getting Order Error:"+e.getMessage());
//customer_results=null;
}
//}
return objects;
}
@Override
protected void onPreExecute()
{
// order_dialog = ProgressDialog.show(getActivity(),"Getting Sales Information...", "Please wait while loading", true);
}
protected void onPostExecute(final Object object[])
{
// order_dialog.dismiss();
// System.out.println("Data length is:"+object.length);
// System.out.println("Dismiss Called");
for(Object obj:object)
{
extractDate(obj);
}
}
private void extractDate(Object obj) {
// TODO Auto-generated method stub
Map map=(Map)obj;
System.out.println(map.get("getCreatedAt"));
}
}
}