Java tutorial
/* * EduMsg is made available under the OSI-approved MIT license. * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ package edumsg.edumsg_android_app; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.support.design.widget.TextInputEditText; import android.support.v4.app.Fragment; import android.support.v7.widget.Toolbar; import android.text.Editable; import android.text.TextWatcher; import android.view.LayoutInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.InputMethodManager; import android.widget.CompoundButton; import android.widget.Switch; import com.android.volley.AuthFailureError; import com.android.volley.Request; import com.android.volley.Response; import com.android.volley.VolleyError; import com.android.volley.toolbox.JsonObjectRequest; import com.squareup.picasso.Picasso; import net.steamcrafted.loadtoast.LoadToast; import org.json.JSONException; import org.json.JSONObject; import java.util.HashMap; import java.util.Map; import butterknife.Bind; import butterknife.ButterKnife; /** * A fragment that provides the user with many views that allow the user to edit their info. */ public class EditProfileFragment extends Fragment { private User user; private JSONObject requestParams; OnInfoEditedListener mCallback; @Bind(R.id.toolbar_edit_profile) Toolbar toolbar; @Bind(R.id.edit_name) TextInputEditText editName; @Bind(R.id.edit_language) TextInputEditText editLanguage; @Bind(R.id.edit_country) TextInputEditText editCountry; @Bind(R.id.edit_website) TextInputEditText editWebsite; @Bind(R.id.edit_avatar_url) TextInputEditText editAvatarUrl; @Bind(R.id.overlay_switch) Switch editOverlay; @Bind(R.id.edit_link_color) TextInputEditText editLinkColor; @Bind(R.id.edit_background_color) TextInputEditText editBackgroundColor; @Bind(R.id.protected_switch) Switch editProtected; /** * This interface must be implemented by activities that contain this fragment to allow an interaction in this fragment to be communicated to the activity and potentially other fragments contained in that activity. */ public interface OnInfoEditedListener { void onInfoEdited(User user); } public EditProfileFragment() { } @Override public void onAttach(Context context) { super.onAttach(context); try { mCallback = (OnInfoEditedListener) context; } catch (ClassCastException e) { throw new ClassCastException(context.toString() + " must implement OnHeadlineSelectedListener"); } } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); user = getArguments().getParcelable("user"); requestParams = new JSONObject(); try { requestParams.put("queue", "USER"); requestParams.put("method", "update_user"); requestParams.put("session_id", MyAppCompatActivity.sessionId); } catch (JSONException e) { e.printStackTrace(); } setHasOptionsMenu(true); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_edit_profile, container, false); ButterKnife.bind(this, view); toolbar.setTitle("Edit Profile"); toolbar.inflateMenu(R.menu.menu_edit_profile); toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { switch (item.getItemId()) { case R.id.cancel_btn: getActivity().getSupportFragmentManager().popBackStack(); break; case R.id.save_btn: // if (!editName.getText().equals(user.getName()) // || !editLanguage.getText().equals(user.getLanguage()) // || !editCountry.getText().equals(user.getCountry()) // || !editWebsite.getText().equals(user.getWebsite()) // || !editAvatarUrl.getText().equals(user.getAvatar_url()) // || editOverlay.isChecked() && !user.getOverlay() // || !editLinkColor.getText().equals(user.getLink_color()) // || !editBackgroundColor.getText().equals(user.getBackground_color()) // || editProtected.isChecked() && !user.getProtected_tweets()) if (requestParams.length() > 3) commitChanges(); else getActivity().getSupportFragmentManager().popBackStack(); break; } return true; } }); editName.setText(user.getName()); editLanguage.setText(user.getLanguage()); editCountry.setText(user.getCountry()); editWebsite.setText(user.getWebsite()); editAvatarUrl.setText(user.getAvatar_url()); editOverlay.setChecked(user.getOverlay()); editLinkColor.setText(user.getLink_color()); editBackgroundColor.setText(user.getBackground_color()); editProtected.setChecked(user.getProtected_tweets()); setListeners(); return view; } private void setListeners() { editName.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("name", s); } catch (JSONException e) { e.printStackTrace(); } } }); editLanguage.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("language", s); } catch (JSONException e) { e.printStackTrace(); } } }); editCountry.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("country", s); } catch (JSONException e) { e.printStackTrace(); } } }); editWebsite.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("website", s); } catch (JSONException e) { e.printStackTrace(); } } }); editAvatarUrl.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("avatar_url", s); } catch (JSONException e) { e.printStackTrace(); } } }); editLinkColor.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("link_color", s); } catch (JSONException e) { e.printStackTrace(); } } }); editBackgroundColor.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { try { requestParams.put("background_color", s); } catch (JSONException e) { e.printStackTrace(); } } }); editOverlay.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { try { requestParams.put("overlay", isChecked + ""); } catch (JSONException e) { e.printStackTrace(); } } }); editProtected.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { try { requestParams.put("protected_tweets", isChecked + ""); } catch (JSONException e) { e.printStackTrace(); } } }); } private void commitChanges() { MyAppCompatActivity main = (MyAppCompatActivity) getContext(); final LoadToast loadToast = new LoadToast(main); final float scale = main.getApplicationContext().getResources().getDisplayMetrics().density; int pixels = (int) (56 * scale + 0.5f); loadToast.setTranslationY(pixels); loadToast.show(); try { JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, MainActivity.requestUrl, requestParams, new Response.Listener<JSONObject>() { @Override public void onResponse(JSONObject response) { try { if (response.get("code").equals("200")) { loadToast.success(); InputMethodManager imm = (InputMethodManager) getContext() .getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow( getActivity().getWindow().getDecorView().getRootView().getWindowToken(), 0); User user = new User(); if (requestParams.has("name")) user.setName(requestParams.getString("name")); if (requestParams.has("avatar_url")) user.setAvatar_url(requestParams.getString("avatar_url")); mCallback.onInfoEdited(user); // if (requestParams.has("name")) // ((ProfileActivity) getActivity()) // .usernameTxt.setText(requestParams.getString("name")); // if (requestParams.has("avatar_url")) // Picasso.with(getContext()).load(requestParams.getString("avatar_url")) // .fit().placeholder(R.mipmap.ic_launcher) // .into(((ProfileActivity) getActivity()).avatar); // getActivity().getSupportFragmentManager().popBackStack(); } } catch (Exception e) { loadToast.error(); e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { loadToast.error(); error.printStackTrace(); } }) { @Override public Map<String, String> getHeaders() throws AuthFailureError { HashMap<String, String> headers = new HashMap<String, String>(); headers.put("Content-Type", "application/json; charset=utf-8"); //headers.put("User-agent", System.getProperty("http.agent")); return headers; }; }; jsonObjectRequest.setTag(MyAppCompatActivity.TAG); main.getVolleyRequestQueue().add(jsonObjectRequest); } catch (Exception e) { loadToast.error(); e.printStackTrace(); } } }