android.support.v7.widget.AppCompatButton Java Examples

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_login, container, false);

    loginName = (AppCompatEditText) view.findViewById(R.id.login_name);
    loginPassword = (AppCompatEditText) view.findViewById(R.id.login_password);

    AppCompatButton signInButton = (AppCompatButton) view.findViewById(R.id.sign_in_button);
    signInButton.setOnClickListener(__ -> {
        if (isInputDataValid()) {
            String name = loginName.getText().toString();
            String password = loginPassword.getText().toString();
            mPresenter.saveUser(name, password);
            mPresenter.attemptLogin(name, password, false);
        } else {
            showInputDataError();
        }
    });
    return view;
}
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.lo_fire_auth_signup);

    mCrdntrlyot = (CoordinatorLayout) findViewById(R.id.cordntrlyot_fireauth_signup);
    mTxtinptlyotEmail = (TextInputLayout) findViewById(R.id.txtinputlyot_fireauth_signup_email);
    mTxtinptlyotPaswrd = (TextInputLayout) findViewById(R.id.txtinputlyot_fireauth_signup_password);
    mTxtinptEtEmail = (TextInputEditText) findViewById(R.id.txtinptet_fireauth_signup_email);
    mTxtinptEtPaswrd = (TextInputEditText) findViewById(R.id.txtinptet_fireauth_signup_password);
    mAppcmptbtnSignup = (AppCompatButton) findViewById(R.id.appcmptbtn_fireauth_signup);
    mTvFrgtPaswrd = (TextView) findViewById(R.id.tv_fireauth_signup_frgtpaswrd);
    mTvSigninMe = (TextView) findViewById(R.id.tv_fireauth_signup_signinme);
    mPrgrsbrMain = (ProgressBar) findViewById(R.id.prgrsbr_fireauth_signup);

    mFireAuth = FirebaseAuth.getInstance();
    mFireDB = FirebaseDatabase.getInstance();

    mAppcmptbtnSignup.setOnClickListener(this);
    mTvFrgtPaswrd.setOnClickListener(this);
    mTvSigninMe.setOnClickListener(this);
}
 

public void setButtonState(View button, boolean selected) {
    if (button == null) {
        return;
    }
    button.setSelected(selected);
    button.setBackgroundResource(selected ? R.drawable.button_pressed : R.drawable.button_not_pressed);
    if (colorPressed != 0 || colorNotPressed != 0) {
        button.setBackgroundColor(selected ? colorPressed : colorNotPressed);
    } else if (colorPressedBackground != 0 || colorNotPressedBackground != 0) {
      button.setBackgroundColor(selected ? colorPressedBackground : colorNotPressedBackground);
    }
    if (button instanceof Button) {
        int style = selected ? R.style.WhiteBoldText : R.style.PrimaryNormalText;
        ((AppCompatButton) button).setTextAppearance(this.getContext(), style);
        if (colorPressed != 0 || colorNotPressed != 0) {
            ((AppCompatButton) button).setTextColor(!selected ? colorPressed : colorNotPressed);
        } 
        if (colorPressedText != 0 || colorNotPressedText != 0) {
          ((AppCompatButton) button).setTextColor(selected ? colorPressedText : colorNotPressedText);
        }
        if (pressedBackgroundResource != 0 || notPressedBackgroundResource != 0) {
          button.setBackgroundResource(selected ? pressedBackgroundResource : notPressedBackgroundResource);
        }
    }
}
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.lo_fire_auth_resetpassword);

    mCrdntrlyot = (CoordinatorLayout) findViewById(R.id.cordntrlyot_fireauth_resetpaswrd);
    mTxtinptlyotEmail = (TextInputLayout) findViewById(R.id.txtinputlyot_fireauth_resetpaswrd_email);
    mTxtinptEtEmail = (TextInputEditText) findViewById(R.id.txtinptet_fireauth_resetpaswrd_email);
    mAppcmptbtnSignup = (AppCompatButton) findViewById(R.id.appcmptbtn_fireauth_resetpaswrd);
    mPrgrsbrMain = (ProgressBar) findViewById(R.id.prgrsbr_fireauth_resetpaswrd);

    mFireAuth = FirebaseAuth.getInstance();

    mAppcmptbtnSignup.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            // Check all field Validation and call API
            checkVldtnCallApi();
        }
    });

}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mMainApplication = (MainApplication) getApplication();
  mAuthorize = (AppCompatButton) findViewById(R.id.authorize);
  mMakeApiCall = (AppCompatButton) findViewById(R.id.makeApiCall);
  mSignOut = (AppCompatButton) findViewById(R.id.signOut);
  mGivenName = (AppCompatTextView) findViewById(R.id.givenName);
  mFamilyName = (AppCompatTextView) findViewById(R.id.familyName);
  mFullName = (AppCompatTextView) findViewById(R.id.fullName);
  mProfileView = (ImageView) findViewById(R.id.profileImage);

  enablePostAuthorizationFlows();

  // wire click listeners
  mAuthorize.setOnClickListener(new AuthorizeListener());
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mMainApplication = (MainApplication) getApplication();
  mAuthorize = (AppCompatButton) findViewById(R.id.authorize);
  mMakeApiCall = (AppCompatButton) findViewById(R.id.makeApiCall);
  mSignOut = (AppCompatButton) findViewById(R.id.signOut);
  mGivenName = (AppCompatTextView) findViewById(R.id.givenName);
  mFamilyName = (AppCompatTextView) findViewById(R.id.familyName);
  mFullName = (AppCompatTextView) findViewById(R.id.fullName);
  mProfileView = (ImageView) findViewById(R.id.profileImage);

  enablePostAuthorizationFlows();

  // wire click listeners
  mAuthorize.setOnClickListener(new AuthorizeListener());
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mMainApplication = (MainApplication) getApplication();
  mAuthorize = (AppCompatButton) findViewById(R.id.authorize);
  mMakeApiCall = (AppCompatButton) findViewById(R.id.makeApiCall);
  mSignOut = (AppCompatButton) findViewById(R.id.signOut);
  mGivenName = (AppCompatTextView) findViewById(R.id.givenName);
  mFamilyName = (AppCompatTextView) findViewById(R.id.familyName);
  mFullName = (AppCompatTextView) findViewById(R.id.fullName);
  mProfileView = (ImageView) findViewById(R.id.profileImage);

  enablePostAuthorizationFlows();

  // wire click listeners
  mAuthorize.setOnClickListener(new AuthorizeListener(this));

  // Retrieve app restrictions and take appropriate action
  getAppRestrictions();
}
 

@Override
@SuppressWarnings("all")
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.menu_more:
            ViewGroup rootView = findViewById(R.id.rootView);
            AppCompatButton button = new AppCompatButton(this);
            button.setText("动态创建的 Button");
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {

                }
            });
            rootView.addView(button);
            break;
    }
    return super.onOptionsItemSelected(item);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Find view
    AppCompatButton sampleGradientXmlBtn = findViewById(R.id.sampleGradientXmlBtn);
    AppCompatButton sampleFadeXml1Btn = findViewById(R.id.sampleFadeXml1Btn);
    AppCompatButton sampleFadeXml2Btn = findViewById(R.id.sampleFadeXml2Btn);
    AppCompatButton sampleShapeXmlBtn = findViewById(R.id.sampleShapeXmlBtn);
    AppCompatButton sampleAutoItemsCountXmlBtn = findViewById(R.id.sampleAutoItemsCountXmlBtn);
    AppCompatButton sampleGradientJavaBtn = findViewById(R.id.sampleGradientJavaBtn);
    AppCompatButton sampleAddViewsByJavaBtn = findViewById(R.id.sampleAddViewsByJavaBtn);

    // Set on click listener for buttons
    sampleGradientXmlBtn.setOnClickListener(this);
    sampleFadeXml1Btn.setOnClickListener(this);
    sampleFadeXml2Btn.setOnClickListener(this);
    sampleShapeXmlBtn.setOnClickListener(this);
    sampleAutoItemsCountXmlBtn.setOnClickListener(this);
    sampleGradientJavaBtn.setOnClickListener(this);
    sampleAddViewsByJavaBtn.setOnClickListener(this);

}
 

private void createAllButton(LinearLayout containerLinearLayout)
{
    AppCompatButton button = new AppCompatButton(this);
    int padding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10, getResources().getDisplayMetrics());
    button.setPadding(padding, padding, padding, padding);
    containerLinearLayout.addView(button, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    button.setText("Show Time");
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v)
        {
            Intent intent = new Intent(MainActivity.this, ShowTimeAllActivity.class);
            startActivity(intent);
        }
    });
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    btnCard = (AppCompatButton) findViewById(R.id.btn_card);
    btnLayout = (AppCompatButton) findViewById(R.id.btn_layout);
    btnLayoutBlur = (AppCompatButton) findViewById(R.id.btn_layout_blur);
    btnLayoutMove = (AppCompatButton) findViewById(R.id.btn_layout_move);
    btnLayoutScale = (AppCompatButton) findViewById(R.id.btn_layout_scale);
    btnLayoutCrossMove = (AppCompatButton) findViewById(R.id.btn_layout_cross);

    btnCard.setOnClickListener(this);
    btnLayout.setOnClickListener(this);
    btnLayoutBlur.setOnClickListener(this);
    btnLayoutMove.setOnClickListener(this);
    btnLayoutScale.setOnClickListener(this);
    btnLayoutCrossMove.setOnClickListener(this);
}
 

public ThemeDialog(@NonNull Context context, BaseActivity activity) {
    super(context, R.style.Theme_AppCompat_Dialog_MinWidth);
    setOwnerActivity((Activity) context);
    setContentView(R.layout.dialog_theme);

    ButterKnife.bind(this);

    this.activity = activity;

    for (AppCompatButton button : buttons)
        button.setOnClickListener(this);
}
 

private void showInfo(String header, String desc, @Nullable Drawable drawable, boolean error) {
    hideKeyboard();
    AppCompatTextView infoHeader = (AppCompatTextView) llBottomSheet.findViewById(R.id.info_header);
    AppCompatTextView infoDesc = (AppCompatTextView) llBottomSheet.findViewById(R.id.info_desc);
    AppCompatImageView infoImg = (AppCompatImageView) llBottomSheet.findViewById(R.id.info_img);
    if (error) {
        llBottomSheet.findViewById(R.id.info_img).setVisibility(View.GONE);
        ((AppCompatButton) findViewById(R.id.ok_dimiss)).setText("Close");
    } else {
        llBottomSheet.findViewById(R.id.info_img).setVisibility(View.VISIBLE);
        ((AppCompatButton) findViewById(R.id.ok_dimiss)).setText("Ok");
    }

    infoHeader.setText(header);
    infoDesc.setText(desc);
    if (drawable != null)
        infoImg.setImageDrawable(drawable);
    bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
}
 

protected void showInfo(String header, String desc, @Nullable Drawable drawable, boolean error) {
    hideKeyboard();
    AppCompatTextView infoHeader = (AppCompatTextView) llBottomSheet.findViewById(R.id.info_header);
    AppCompatTextView infoDesc = (AppCompatTextView) llBottomSheet.findViewById(R.id.info_desc);
    AppCompatImageView infoImg = (AppCompatImageView) llBottomSheet.findViewById(R.id.info_img);
    if (error) {
        llBottomSheet.findViewById(R.id.info_img).setVisibility(View.GONE);
        ((AppCompatButton) findViewById(R.id.ok_dimiss)).setText("Close");
    } else {
        llBottomSheet.findViewById(R.id.info_img).setVisibility(View.VISIBLE);
        ((AppCompatButton) findViewById(R.id.ok_dimiss)).setText("Ok");
    }

    infoHeader.setText(header);
    infoDesc.setText(desc);
    if (drawable != null)
        infoImg.setImageDrawable(drawable);
    bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
}
 

private void assignViews() {
    mRandomThreadWorkBtn = (AppCompatButton) findViewById(R.id.random_thread_work_btn);
    mAddTaskToIoBtn = (AppCompatButton) findViewById(R.id.add_task_to_io_btn);
    mAddTaskToComputationBtn = (AppCompatButton) findViewById(R.id.add_task_to_computation_btn);
    mAddTaskToNetworkBtn = (AppCompatButton) findViewById(R.id.add_task_to_network_btn);
    mAddTaskToTest1Btn = (AppCompatButton) findViewById(R.id.add_task_to_test1_btn);
    mAddTaskToTest2Btn = (AppCompatButton) findViewById(R.id.add_task_to_test2_btn);
    mAddTaskToTest3Btn = (AppCompatButton) findViewById(R.id.add_task_to_test3_btn);
    mAddTaskToTest4Btn = (AppCompatButton) findViewById(R.id.add_task_to_test4_btn);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    ButterKnife.bind(this);

    mPresenter = new LoginPresenterImpl(this, this);

    if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP && loginFacebookButton instanceof AppCompatButton) {
        ((AppCompatButton) loginFacebookButton).setSupportBackgroundTintList(getResources().getColorStateList(R.color.facebook_blue));
    } else {
        ViewCompat.setBackgroundTintList(loginFacebookButton, getResources().getColorStateList(R.color.facebook_blue));
    }
}
 

@Override
public void showError(boolean firstPage, String errorMessage, View.OnClickListener onClickListener) {
    hideLoading();
    if (firstPage) {
        View tipsView = TipsUtils.showTips(mView, TipsType.LOADING_FAILED);
        AppCompatButton retryBtn= (AppCompatButton)tipsView.findViewById(R.id.retry_btn);
        retryBtn.setOnClickListener(onClickListener);
        retryBtn.setSupportBackgroundTintList(mContext.getResources().getColorStateList(R.color.accent));
        retryBtn.setSupportBackgroundTintMode(PorterDuff.Mode.SRC_IN);
        if (!TextUtils.isEmpty(errorMessage)) {
            ((TextView) tipsView.findViewById(R.id.description)).setText(errorMessage);
        }
    }
}
 

private void startActivity(Class clz, View view) {
    Intent intent = new Intent(this, clz);
    if (view instanceof AppCompatButton) {
        intent.putExtra(INTENT_TITLE, ((AppCompatButton) view).getText());
    }
    startActivity(intent);
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    button = (AppCompatButton) findViewById(R.id.btn_launch_activity);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(MainActivity.this, IntroActivity.class);
            startActivity(intent);
        }
    });
}
 

private void setupRoutesRow(){
    load_routes=new LoadPersonRoutesAsyncTask(this);
    load_routes.execute(p.id);
    view_all_routes=(AppCompatButton)findViewById(R.id.viewAllRoutes);
    view_all_routes.setOnClickListener(this);
    view_all_routes.setEnabled(false);
    PlaceHolderFragment loading = new PlaceHolderFragment();
    Bundle args = new Bundle();
    args.putString("Label", "Loading...");
    loading.setArguments(args);
    getSupportFragmentManager().beginTransaction().replace(R.id.routeFramePersonDetail, loading).commit();
}
 

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    Log.d(TAG,"onViewCreated");
    v=inflater.inflate(R.layout.friend_tab_bottomnavigation,container,false);
    viewall_currentfriends=(AppCompatButton)v.findViewById(R.id.viewallCurrentfriends);
    viewall_currentfriends.setEnabled(false); //The button wont be active until and unless we get the entire friendlist
    viewall_currentfriends.setOnClickListener(this);
    return v;
}
 

private void wireViews() {
    name = (EditText) findViewById(R.id.id_name);
    account = (EditText) findViewById(R.id.account);
    password = (EditText) findViewById(R.id.password);
    addtional = (EditText) findViewById(R.id.additional);
    imageView = (AppCompatImageView) findViewById(R.id.account_image);
    website = (EditText) findViewById(R.id.website);
    generateButton = (AppCompatButton) findViewById(R.id.generate_button);
}
 

void getDefinition()
{
    mLogOnButton=(AppCompatImageView)this.findViewById(R.id.account_sign_in_button);
    mRegisterButton = (AppCompatButton)findViewById(R.id.account_register_button);
    passwordEditText=((EditText)this.findViewById(R.id.password));
    tv_find_password = ((AppCompatTextView) this.findViewById(R.id.tv_find_password));
    tv_quick_log_on = ((AppCompatTextView) this.findViewById(R.id.tv_quick_log_on));

}
 

private void assignButtonNames() {
    buttonTD = (AppCompatButton) findViewById(R.id.button_stats_today);
    buttonYTD = (AppCompatButton) findViewById(R.id.button_stats_yesterday);
    button7d = (AppCompatButton) findViewById(R.id.button_stats_7d);
    button30d = (AppCompatButton) findViewById(R.id.button_stats_30d);
    button90d = (AppCompatButton) findViewById(R.id.button_stats_90d);
}
 

private void assignButtonNames() {
    buttonTD = (AppCompatButton) findViewById(R.id.button_stats_today);
    buttonYTD = (AppCompatButton) findViewById(R.id.button_stats_yesterday);
    button7d = (AppCompatButton) findViewById(R.id.button_stats_7d);
    button30d = (AppCompatButton) findViewById(R.id.button_stats_30d);
    button90d = (AppCompatButton) findViewById(R.id.button_stats_90d);
}
 

@RequiresApi(21)
public void showBrokenScrobblingWarning() {
    if (controllerCallback == null)
        controllerCallback = new MediaControllerCallback(null);
    if (NotificationListenerService.isListeningAuthorized(getActivity()))
        MediaControllerCallback.registerFallbackControllerCallback(getActivity(), controllerCallback);

    String[] manufacturers = new String[]{"XIAOMI", "HUAWEI", "HONOR", "LETV"};
    final boolean canFix = Arrays.asList(manufacturers).contains(Build.BRAND.toUpperCase());
    if (canFix && !PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean("nls_warning_removed", false)) {
        final ViewGroup nlsWarning = (ViewGroup) LayoutInflater.from(getActivity()).inflate(R.layout.nls_warning, (ViewGroup) getView(), false);
        AppCompatButton button = nlsWarning.findViewById(R.id.fix_it);
        button.setText(R.string.fix_it);
        button.setOnClickListener(view -> {
            if (!WhiteListUtil.openBootSpecialMenu(getActivity())) {
                MainActivity.startFeedbackActivity(getActivity(), true);
            }
            warningShown = false;
            removePrompt(nlsWarning, false);
        });
        AppCompatImageButton closeButton = nlsWarning.findViewById(R.id.ic_nls_warning_close);
        closeButton.setOnClickListener(view -> {
            removePrompt(nlsWarning, true);
            PreferenceManager.getDefaultSharedPreferences(getActivity()).edit().putBoolean("nls_warning_removed", true).apply();
        });
        ((ViewGroup) getView()).addView(nlsWarning);
        warningShown = true;
        nlsWarning.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                if (mRefreshLayout.getProgressViewEndOffset() == 0)
                    mRefreshLayout.setProgressViewOffset(true, 0, nlsWarning.getMeasuredHeight());
                nlsWarning.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }
        });
    }
}
 

private void initTabHostButton() {
    AppCompatButton button = findViewById(R.id.tabHostButton);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(MainActivity.this, TabHostTestActivity.class);
            startActivity(intent);
        }
    });
}
 

private void init(Context context){
    getWindow().requestFeature(Window.FEATURE_NO_TITLE);
    setContentView(LayoutInflater.from(context).inflate(R.layout.dialod_edit_color_root, null));

    colorEditorRoot=(RelativeLayout)findViewById(R.id.colorEditorRoot);

    doneButton=(AppCompatButton)findViewById(R.id.doneEditing);
    cancelButton=(AppCompatButton)findViewById(R.id.cancelEditing);
    name1=(TextView)findViewById(R.id.name1);
    name2=(TextView)findViewById(R.id.name2);
    name3=(TextView)findViewById(R.id.name3);
    suffix1=(TextView)findViewById(R.id.suffix1);
    suffix2=(TextView)findViewById(R.id.suffix2);
    suffix3=(TextView)findViewById(R.id.suffix3);
    val1=(EditText)findViewById(R.id.val1);
    val2=(EditText)findViewById(R.id.val2);
    val3=(EditText)findViewById(R.id.val3);

    setModeAndValues(MODE_HSV, "", "", "",255);

    cancelButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            dismiss();
        }
    });
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_led);

    mContentLed = (TextInputEditText) findViewById(R.id.content_led);
    Button mFontcolorBtnLed = (Button) findViewById(R.id.fontcolor_btn_led);
    Button mBgcolorBtnLed = (Button) findViewById(R.id.bgcolor_btn_led);
    mPreviewLed = (TextView) findViewById(R.id.preview_led);

    ImageView mReverseColorLed = (ImageView) findViewById(R.id.reverseColor_led);

    mShowstyleRadiogroupLed = (RadioGroup) findViewById(R.id.showstyle_radiogroup_led);

    AppCompatRadioButton mSingleRadiobtnLed = (AppCompatRadioButton) findViewById(R.id.single_radiobtn_led);
    AppCompatRadioButton mSingleTossBtnLed = (AppCompatRadioButton) findViewById(R.id.single_toss_radiobtn_led);

    mRollspeedSeekbarLed = (AppCompatSeekBar) findViewById(R.id.rollspeed_seekbar_led);
    mAdaptiveRadiobtnLed = (AppCompatRadioButton) findViewById(R.id.adaptive_radiobtn_led);
    mLinesTextView = (TextView) findViewById(R.id.tv_lines_led);
    mlinesSeekbar = (AppCompatSeekBar) findViewById(R.id.lines_seekbar_led);
    AppCompatRadioButton mMagicRadiobtnLed = (AppCompatRadioButton) findViewById(R.id.magic_radiobtn_led);
    mCompatSpinner = (AppCompatSpinner) findViewById(R.id.spinner_magicstyle_led);
    Button mStartBtnLed = (AppCompatButton) findViewById(R.id.start_btn_led);

    if (mFontcolorBtnLed != null) {
        mFontcolorBtnLed.setOnClickListener(this);
    }
    if (mStartBtnLed != null) {
        mStartBtnLed.setOnClickListener(this);
    }
    if (mBgcolorBtnLed != null) {
        mBgcolorBtnLed.setOnClickListener(this);
    }

    initViewEvent();
}
 

private void initExpandableListViewTest() {
    AppCompatButton button = findViewById(R.id.expandableListViewTest);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(MainActivity.this, ExpandableListViewTestActivity.class);
            startActivity(intent);
        }
    });
}