我想从 Fragment B 更改 Fragment A 的 LinearLayout 的背景颜色。这些片段在滑动选项卡中的同一个 viewpager 中。
两个片段的数据都是从服务器动态更改的。在这里我必须单击片段 B 的文本视图，然后手动更改其线性布局的颜色（POST 方法），但由于片段 A 的背景颜色变慢（因为片段 A 的文本视图已被选中，因此其颜色已设置。）不会从 LinearLayout（GET 方法）中删除。但过一段时间就会消失。
所以我想手动设置颜色，直到要加载颜色。在单击 textview 进行选择包时制作良好的用户界面。
MinPackageFragment
public class MinPackageFragment extends Fragment {
ConnectionDetector connectionDetector = new ConnectionDetector(getActivity());
private View mView;
private TextView nepal_minimum_package_price, nepal_minimum_package_plan;
private LinearLayout nepal_minimum_package_linearlayout;
private String GET_NEPAL_MIN_PACKAGE_URL;
private String CHECK_CURRENT_PACKAGE_URL;
private WebView webview;
private String minPackagePrice;
private String minPackageItem;
private int THIS_ID;
private String CHOOSE_PACKAGE;
private int currentId;
private int CURRENT_PACKAGE_ID;
private ProgressDialog mProgressDialog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mView = inflater.inflate(R.layout.fragment_min_package, container, false);
SharedPreferences pref = this.getActivity().getSharedPreferences("MyPref", MODE_PRIVATE);
String token = pref.getString("token1", "empty");
THIS_ID = 1001;
GET_NEPAL_MIN_PACKAGE_URL = "http://insocify.com/api/packages";
CHECK_CURRENT_PACKAGE_URL = "http://insocify.com/api/user/packages?token=" + token;
CHOOSE_PACKAGE = "http://insocify.com/api/user/package/choose/1001?token=" + token;
webview = (WebView) mView.findViewById(R.id.minimumNepaliListWebView);
webview.getSettings().setJavaScriptEnabled(true);
if (getActivity() != null) {
mProgressDialog = new ProgressDialog(getActivity());
mProgressDialog.setIndeterminate(true);
mProgressDialog.setCancelable(false);
mProgressDialog.setMessage("Loading...");
}
showDialog();
nepal_minimum_package_price = mView.findViewById(R.id.nepal_minimum_package_price);
nepal_minimum_package_plan = mView.findViewById(R.id.nepal_minimum_package_plan);
nepal_minimum_package_linearlayout = mView.findViewById(R.id.nepal_minimum_package_linearlayout);
nepal_minimum_package_plan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// I want change here the background color of linearlayout of another fragment but getting error
showDialog();
choosePackage();
nepal_minimum_package_plan.setText("Your Plan");
nepal_minimum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
}
});
setContentFromServer();
SharedPreferences pref123 = getActivity().getSharedPreferences("minnepaldata", MODE_PRIVATE);
String avgprice = pref123.getString("mineprice", minPackagePrice);
String avgitems = pref123.getString("minitems", minPackageItem);
nepal_minimum_package_price.setText(avgprice);
webview.loadData(avgitems, "text/html; charset=utf-8", "UTF-8");
chooseNepaliPackage();
if (CURRENT_PACKAGE_ID == THIS_ID) {
nepal_minimum_package_plan.setText("Your Plan");
nepal_minimum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
}
return mView;
}
private void choosePackage() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, CHOOSE_PACKAGE, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject responceData = new JSONObject(response);
int status = responceData.getInt("status");
if (status == 1) {
JSONObject data = responceData.getJSONObject("data");
Log.v("mydata1", data + "");
String currentDataStr = data.getString("current");
Log.v("currentStr", "" + currentDataStr);
JSONObject currentData = new JSONObject(currentDataStr);
if (currentData != null) {
currentId = currentData.getInt("id");
if (currentId == 1001) {
nepal_minimum_package_plan.setText("Your Plan");
nepal_minimum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
nepal_minimum_package_plan.setEnabled(false);
hideDialog();
nepal_minimum_package_linearlayout.setVisibility(View.VISIBLE);
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hideDialog();
Toast.makeText(getActivity(), "Please check your network.", Toast.LENGTH_SHORT).show();
nepal_minimum_package_linearlayout.setVisibility(View.VISIBLE);
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
private void setContentFromServer() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, GET_NEPAL_MIN_PACKAGE_URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject responceData = new JSONObject(response);
JSONArray jsonNepal = responceData.getJSONArray("1");
JSONObject silver = jsonNepal.getJSONObject(0);
JSONObject gold = jsonNepal.getJSONObject(1);
JSONObject platinum = jsonNepal.getJSONObject(2);
String name = silver.getString("name");
minPackagePrice = silver.getString("price");
minPackageItem = silver.getString("includes");
if (getActivity() != null) {
SharedPreferences pref123 = getActivity().getSharedPreferences("minnepaldata", MODE_PRIVATE);
SharedPreferences.Editor editor = pref123.edit();
editor.putString("mineprice", minPackagePrice);
editor.putString("minitems", minPackageItem);
editor.apply();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), "Please check your network.", Toast.LENGTH_SHORT).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
private void chooseNepaliPackage() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, CHECK_CURRENT_PACKAGE_URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject responceData = new JSONObject(response);
hideDialog();
int status = responceData.getInt("status");
if (status == 1) {
JSONObject data = responceData.getJSONObject("data");
String currentDataStr = data.getString("current");
Log.v("currentStr", "" + currentDataStr);
JSONObject currentData = new JSONObject(currentDataStr);
if (currentData != null) {
CURRENT_PACKAGE_ID = currentData.getInt("id");
if (CURRENT_PACKAGE_ID == 1001) {
nepal_minimum_package_plan.setText("Your Plan");
nepal_minimum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
nepal_minimum_package_plan.setEnabled(false);
nepal_minimum_package_linearlayout.setVisibility(View.VISIBLE);
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hideDialog();
if (getActivity() != null) {
Toast.makeText(getActivity(), "Please check your network.", Toast.LENGTH_SHORT).show();
}
nepal_minimum_package_linearlayout.setVisibility(View.VISIBLE);
}
});
if (getActivity() != null) {
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
}
public void showDialog() {
if (mProgressDialog != null && !mProgressDialog.isShowing())
mProgressDialog.show();
}
public void hideDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}
MaxPackageFragment
public class MaxPackageFragment extends Fragment {
ConnectionDetector connectionDetector = new ConnectionDetector(getActivity());
private WebView maximumNepaliListWebView;
private View maxView;
private TextView nepal_maximum_package_plan, nepal_maximum_package_price;
private String GET_NEPAL_PACKAGE_URL;
private String maxPackageprice;
private String maxPackageitems;
private String CHECK_CURRENT_PACKAGE_URL;
private LinearLayout nepal_maximum_package_linearlayout;
private String CHOOSE_PACKAGE;
private int THIS_ID;
private int currentId;
private int CURRENT_PACKAGE_ID;
private ProgressDialog mProgressDialog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
maxView = inflater.inflate(R.layout.fragment_max_package, container, false);
SharedPreferences pref = this.getActivity().getSharedPreferences("MyPref", MODE_PRIVATE);
String token = pref.getString("token1", "empty");
THIS_ID = 1003;
GET_NEPAL_PACKAGE_URL = "http://insocify.com/api/packages";
CHECK_CURRENT_PACKAGE_URL = "http://insocify.com/api/user/packages?token=" + token;
CHOOSE_PACKAGE = "http://insocify.com/api/user/package/choose/1003?token=" + token;
nepal_maximum_package_linearlayout = maxView.findViewById(R.id.nepal_maximum_package_linearlayout);
maximumNepaliListWebView = maxView.findViewById(R.id.maximumNepaliListWebView);
if (getActivity() != null) {
mProgressDialog = new ProgressDialog(getActivity());
mProgressDialog.setIndeterminate(true);
mProgressDialog.setCancelable(false);
mProgressDialog.setMessage("Loading...");
}
showDialog();
nepal_maximum_package_plan = maxView.findViewById(R.id.nepal_maximum_package_plan);
nepal_maximum_package_price = maxView.findViewById(R.id.nepal_maximum_package_price);
nepal_maximum_package_plan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showDialog();
// I want change here the background color of linearlayout of another fragment but getting error
choosePackage();
nepal_maximum_package_plan.setText("Your Plan");
nepal_maximum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
}
});
setItemToLayout();
SharedPreferences pref1 = getActivity().getSharedPreferences("maxnepaldata", MODE_PRIVATE);
String maxprice = pref1.getString("maxprice", maxPackageprice);
String maxitems = pref1.getString("maxitems", maxPackageitems);
nepal_maximum_package_price.setText(maxprice);
maximumNepaliListWebView.loadData(maxitems, "text/html; charset=utf-8", "UTF-8");
chooseNepaliPackage();
if (CURRENT_PACKAGE_ID == THIS_ID) {
nepal_maximum_package_plan.setText("Your Plan");
nepal_maximum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
}
return maxView;
}
private void choosePackage() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, CHOOSE_PACKAGE, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject responceData = new JSONObject(response);
int status = responceData.getInt("status");
if (status == 1) {
JSONObject data = responceData.getJSONObject("data");
String currentDataStr = data.getString("current");
JSONObject currentData = new JSONObject(currentDataStr);
if (currentData != null) {
currentId = currentData.getInt("id");
if (currentId == 1003) {
nepal_maximum_package_plan.setText("Your Plan");
nepal_maximum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
nepal_maximum_package_plan.setEnabled(false);
hideDialog();
}
}
}
else {
JSONArray errordata = responceData.getJSONArray("errors");
String errormessage = errordata.getJSONObject(0).getString("message");
Toast.makeText(getActivity(), "" + errormessage, Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hideDialog();
Toast.makeText(getActivity(), "Please check your network.", Toast.LENGTH_SHORT).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
private void setItemToLayout() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, GET_NEPAL_PACKAGE_URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject responceData = new JSONObject(response);
Log.v("responceData", "onResponse: " + responceData);
JSONArray jsonNepal = responceData.getJSONArray("1");
JSONObject silver = jsonNepal.getJSONObject(0);
JSONObject gold = jsonNepal.getJSONObject(1);
JSONObject platinum = jsonNepal.getJSONObject(2);
String name = platinum.getString("name");
maxPackageprice = platinum.getString("price");
maxPackageitems = platinum.getString("includes");
if (getActivity() != null) {
SharedPreferences pref1 = getActivity().getSharedPreferences("maxnepaldata", MODE_PRIVATE);
SharedPreferences.Editor editor = pref1.edit();
editor.putString("maxprice", maxPackageprice);
editor.putString("maxitems", maxPackageitems);
editor.apply();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getActivity(), "Please check your network.", Toast.LENGTH_SHORT).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
private void chooseNepaliPackage() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, CHECK_CURRENT_PACKAGE_URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject responceData = new JSONObject(response);
hideDialog();
int status = responceData.getInt("status");
if (status == 1) {
JSONObject data = responceData.getJSONObject("data");
String currentDataStr = data.getString("current");
Log.v("currentStr", "" + currentDataStr);
JSONObject currentData = new JSONObject(currentDataStr);
if (currentData != null) {
CURRENT_PACKAGE_ID = currentData.getInt("id");
if (CURRENT_PACKAGE_ID ==1003){
nepal_maximum_package_plan.setText("Your Plan");
nepal_maximum_package_linearlayout.setBackgroundResource(R.drawable.background_square_selected);
nepal_maximum_package_plan.setEnabled(false);
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hideDialog();
if (getActivity() != null) {
Toast.makeText(getActivity(), "Please check your network.", Toast.LENGTH_SHORT).show();
}
}
});
if (getActivity() != null) {
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
}
public void showDialog() {
if (mProgressDialog != null && !mProgressDialog.isShowing())
mProgressDialog.show();
}
public void hideDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}
片段的同一个viewpager中有三个片段，在三个选项卡内。