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Action Bar

Kewang

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1.App icon (android.R.id.home)2.View control3.Action buttons4.Action overflow

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Action Bar wants to provide

Identifying the app brandConsistent navigationMake key actions

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Show Action Bar

<uses-sdk android:minSdkVersion="11" />

<application android:theme="@android:style/Theme.Holo" />

API Level MUST be 11 or greatertheme's android:windowActionBar="true", or theme MUST be Holo or its descendants

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Hide Action Bar

<application android:theme="@android:style/Theme.Holo.NoActionBar" />

getActionBar().hide();

Manifest.xml (remove Action Bar)

at Activity

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App Icon for Navigation

●Go to the app "home" activity●Navigate "up" the app's structural hierarchy

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App Icon for Navigation (Home)

@Overridepublic boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { Intent intent = new Intent(this, Main.class);

intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

startActivity(intent);

return true; }} add FLAG_ACTIVITY_CLEAR_TOP

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App Icon for Navigation (Up)

BACK navigation

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UP navigation

App Icon for Navigation (Up)

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getActionBar().setDisplayHomeAsUpEnabled(true);

App Icon for Navigation (Up)

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Action Items

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Action Items

<item android:actionViewClass="android.widget.SearchView" android:icon="@drawable/icon_modify" android:showAsAction="ifRoom" android:title="@string/menu_settings"/><item android:icon="@drawable/icon_status" android:showAsAction="ifRoom|withText" android:title="設定二"/>

MUST define title & id

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<item android:icon="@drawable/icon_setup" android:showAsAction="never" android:title="設定一"/><item android:icon="@drawable/icon_manual" android:showAsAction="always" android:title="主設定"> <menu> <item android:title="密碼設定"/> <item android:title="檢核戶號"/> </menu></item>

Action Items

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Action View@Overridepublic boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu);

SearchView v = menu.findItem(R.id.set).getActionView();

v.setOnSearchClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(Main.this, "Search", Toast.LENGTH_SHORT).show(); } });

return true;}

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Action Bar Custom View

actionBarView = getLayoutInflater().inflate(R.layout.navigation, null);

getActionBar().setCustomView(actionBarView);getActionBar().setDisplayShowCustomEnabled(true);

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Styling

boolean: android:windowActionBarOverlay

false

true

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Styling

android:actionButtonStyleandroid:actionBarItemBackgroundandroid:itemBackgroundandroid:actionBarDividerandroid:actionMenuTextColorandroid:actionMenuTextAppearanceandroid:actionBarWidgetTheme

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ActionView

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ActionView

<item android:id="@+id/search" android:actionViewClass="android.widget.SearchView" android:showAsAction="ifRoom|collapseActionView" android:title="Search"/>

<item android:id="@+id/search" android:actionLayout="@layout/action_layout" android:showAsAction="ifRoom|collapseActionView" android:title="Search"/>

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ActionViewpublic boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu);

MenuItem item = menu.findItem(R.id.search); View v = (View) item.getActionView(); // SDK 11+

item.setOnActionExpandListener(new OnActionExpandListener() { boolean onMenuItemActionExpand(MenuItem item) { return true; // trigger by item.expandActionView() }

boolean onMenuItemActionCollapse(MenuItem item) { return true; // trigger by item.collapseActionView() } });

return true;}

only SDK 14+

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Navigation

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Navigation

setNavigationMode(int)• ActionBar.NAVIGATION_MODE_STANDARD• ActionBar.NAVIGATION_MODE_TABS• ActionBar.NAVIGATION_MODE_LIST

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Navigation

STANDARD

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Navigation

TABS

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Navigation

LIST

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Navigation - TABS implementationTab tab = getActionBar().newTab();

tab.setText("這是TAB Name");tab.setIcon(getDrawable(R.drawable.icon_setup));tab.setTabListener(new TabListener() { void onTabUnselected(Tab, FragmentTransaction) {}

void onTabSelected(Tab, FragmentTransaction) { // using tab.getPosition() to do something }

void onTabReselected(Tab, FragmentTransaction) {}});

getActionBar().addTab(tab);

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Navigation - LIST implementation

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.simple_spinner_item, R.id.text1, new String[] { "aaa", "bbb" });

adapter.setDropDownViewResource(R.layout.simple_spinner_dropdown_item);

getActionBar().setListNavigationCallbacks(adapter, new OnNavigationListener() { boolean onNavigationItemSelected(int position, long id) { // using position to do something

return true; }});

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「API就是要無腦！

」

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FragmentFramework

• Action Bar's style• Navigation mode• Fragment's callback at CRUD• App Icon navigation mode• Swipe all fragments• Main fragment settings

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public abstract class Container { public void addFragment(String, Fragment) public void removeFragment(Fragment) public void showFragment(Fragment) public void hideFragment(Fragment) public void replaceFragment(String, Fragment)

public void onFragmentAdded(FragmentProperty) public void onFragmentRemoved(FragmentProperty) public void onFragmentShown(FragmentProperty) public void onFragmentHidden(FragmentProperty) public void onFragmentReplaced(FragmentProperty)}

Container

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public abstract class Container { public boolean isSliding(); public int getNavigationMode(); public int getAppIconMode();

public abstract Fragment getMainFragment(); public abstract String getMainFragmentName();}

Container

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Navigation

public interface ListNavigation { public void setActionBar(ActionBar actionBar); public int getActionBarLayoutId(); public BaseAdapter getNavigationAdapter();

public interface StandardNavigation extends ListNavigation { public int getNavigationWidth(); public int getNavigationDirection(); }} ListNavigation for LIST

StandardNavigation for STANDARD

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TODO

• TODO standard navigation direction• TODO communication between fragments• TODO bulk fragments on creating• TODO hierarchical fragments• TODO more generic• more...

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