androidx.appcompat.app.ActionBar#setSubtitle ( )源码实例Demo

private void updateSubtitle() {
    AppCompatActivity activity = (AppCompatActivity) getActivity();
    if (activity != null && !isPane()) {
        ActionBar actionbar = activity.getSupportActionBar();
        if (actionbar != null)
            if ((actionbar.getDisplayOptions() & DISPLAY_SHOW_CUSTOM) == 0) {
                actionbar.setTitle(title == null ? getString(R.string.app_name) : title);
                actionbar.setSubtitle(subtitle);
            } else {
                View custom = actionbar.getCustomView();
                TextView tvTitle = custom.findViewById(R.id.title);
                TextView tvSubtitle = custom.findViewById(R.id.subtitle);
                tvTitle.setText(title == null ? getString(R.string.app_name) : title);
                tvSubtitle.setText(subtitle);
            }
    }
}
 

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    AppCompatActivity activity = (AppCompatActivity) getActivity();

    List<String> tableList = DatabaseHelper.getAllTables(database);
    String version = DatabaseHelper.getVersion(database);
    ActionBar actionBar = activity.getSupportActionBar();
    if (actionBar != null) {

        actionBar.setTitle(database.getName());
        if (!TextUtils.isEmpty(version)) {
            actionBar.setSubtitle("v" + version);
        }
        actionBar.setDisplayHomeAsUpEnabled(true);
    }

    adapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_list_item_1, tableList);

    setListAdapter(adapter);
    getListView().setOnItemClickListener(tableClickListener);
}
 

@Override
public String getToolbarName() {
    if (projectUser != null && projectUser.project != null) {
        if (!projectUser.project.isMaster()) {
            ActionBar actionBar = super.getSupportActionBar();
            if (actionBar != null)
                actionBar.setSubtitle(projectUser.project.parent.name);
        }
        return projectUser.project.name;
    } else if (slugProject != null)
        return slugProject;
    return null;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_claim_experiments);
  boolean isTablet = getResources().getBoolean(R.bool.is_tablet);
  if (!isTablet) {
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
  }

  AppAccount claimingAccount =
      WhistlePunkApplication.getAccount(this, getIntent(), ARG_ACCOUNT_KEY);

  ActionBar actionBar = getSupportActionBar();
  actionBar.setHomeAsUpIndicator(
      ColorUtils.colorDrawable(
          this,
          ContextCompat.getDrawable(this, R.drawable.ic_close_white_24dp),
          R.color.claim_experiments_action_bar_text));
  actionBar.setHomeActionContentDescription(android.R.string.cancel);
  actionBar.setTitle(getString(R.string.title_activity_claim_experiments));
  actionBar.setSubtitle(claimingAccount.getAccountName());

  if (getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG) == null) {
    Fragment fragment =
        ExperimentListFragment.newInstanceForClaimExperimentsMode(
            this, claimingAccount, getIntent().getBooleanExtra(ARG_USE_PANES, true));
    getSupportFragmentManager()
        .beginTransaction()
        .add(R.id.container, fragment, FRAGMENT_TAG)
        .commit();
  }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  // Shows TalkBack's abbreviated version number in the action bar,
  ActionBar actionBar = getSupportActionBar();
  PackageInfo packageInfo = TalkBackPreferenceFragment.getPackageInfo(this);
  if (actionBar != null && packageInfo != null) {
    actionBar.setSubtitle(
        getString(R.string.talkback_preferences_subtitle, packageInfo.versionName));
  }
}
 

protected void setActionBarSubtitle(CharSequence title) {
    if (getActivity() != null) {
        ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
        String t = Utils.nullToText(title);
        if (actionBar != null && !t.equals(actionBar.getTitle())) {
            actionBar.setSubtitle(t);
        }
    }
}
 

private void applyToActionBar(@NonNull MainActivity mainActivity) {
    ActionBar actionBar = mainActivity.getSupportActionBar();
    if (actionBar != null) {
        int colorSelected = ContextCompat.getColor(mainActivity, R.color.selected);
        int colorNotSelected = ContextCompat.getColor(mainActivity, R.color.regular);
        Resources resources = mainActivity.getResources();
        String wiFiBand2 = resources.getString(WiFiBand.GHZ2.getTextResource());
        String wiFiBand5 = resources.getString(WiFiBand.GHZ5.getTextResource());
        WiFiBand wiFiBand = MainContext.INSTANCE.getSettings().getWiFiBand();
        String subtitle = makeSubtitle(WiFiBand.GHZ2.equals(wiFiBand), wiFiBand2, wiFiBand5, colorSelected, colorNotSelected);
        actionBar.setSubtitle(TextUtils.fromHtml(subtitle));
    }
}
 

@Override
public void onDestroyView() {
    super.onDestroyView();

    try {
        ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
        actionBar.setSubtitle("");
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	EventBus.getDefault().register(this);
       //测试databinding
	//PluginLauncherBinding bing =  DataBindingUtil.setContentView(this, R.layout.plugin_launcher);
	//DataBindingTestVO dataBindingTestVO = new DataBindingTestVO("DataBind:打开PluginHellWorld");
	//bing.setTest(dataBindingTestVO);

	setContentView(R.layout.plugin_launcher);
       ButterKnifeCompat.bind(this);

	testLog();

       fakeThisForUmengSdk = fakeActivityForUMengSdk(LauncherActivity.this);

       requestPermission();

	ActionBar actionBar = getSupportActionBar();
	actionBar.setTitle("这是插件首屏");
	actionBar.setSubtitle("这是副标题");
	actionBar.setLogo(R.drawable.ic_launcher);
	actionBar.setIcon(R.drawable.ic_launcher);
	actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_HOME_AS_UP
			| ActionBar.DISPLAY_SHOW_TITLE | ActionBar.DISPLAY_SHOW_CUSTOM);

	findViewById( R.id.onClickHellowrld).setOnClickListener(this);
	findViewById( R.id.onClickPluginNormalFragment).setOnClickListener(this);
	findViewById( R.id.onClickPluginSpecFragment).setOnClickListener(this);
	findViewById( R.id.onClickPluginForDialogActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginForOppoAndVivoActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginNotInManifestActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginFragmentTestActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginSingleTaskActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestOpenPluginActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestTabActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginWebViewActivity).setOnClickListener(this);
	findViewById( R.id.onClickTransparentActivity).setOnClickListener(this);
	findViewById( R.id.onClickDesignActivity).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestReceiver).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestReceiver2).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestService).setOnClickListener(this);
	findViewById( R.id.onClickPluginTestService2).setOnClickListener(this);
	findViewById( R.id.onTestFileProvider).setOnClickListener(this);

       testQueryIntentActivities();
       testAlarm();
       testService();
       testMeta();
       testVersion1();
       testVersion2();
	testMuliDex();
	testUseLibray();
}
 

private void applyToActionBar(@NonNull MainActivity mainActivity) {
    ActionBar actionBar = mainActivity.getSupportActionBar();
    if (actionBar != null) {
        actionBar.setSubtitle(StringUtils.EMPTY);
    }
}
 

private void setActionBarTitle(@StringRes int resId) {
    ActionBar actionBar = getActionBar();
    if (actionBar != null) {
        actionBar.setSubtitle(resId);
    }
}
 

private void hideActionBarSubTitle() {
    ActionBar actionBar = getActionBar();
    if (actionBar != null) {
        actionBar.setSubtitle(null);
    }
}
 

private void hideActionBarSubTitle() {
    ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
        actionBar.setSubtitle(null);
    }
}
 

private void setActionBarTitle(@StringRes int stringId) {
    ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
        actionBar.setSubtitle(stringId);
    }
}