Android UI开发第三十四篇——SlidingPaneLayout
SlidingPaneLayout也是系统支持的高级控件，是Android团对在2013 google IO大会期间更新的Support库（Version 13）中新加入的重要的功能。它支持左右滑动菜单，和SlidingMenu相似。这篇文章简单的介绍SlidingPaneLayout怎么使用，SlidingPaneLayout的使用和前面介绍的Navigation Drawer的使用无二异。
SlidingPaneLayout是一个水平的多层的布局控件，左侧或第一个视图是导航层，其他的为内容视图。
SlidingPaneLayout一般支持左侧滑出，没有右侧导航。
SlidingPaneLayout属于布局类：
<android.support.v4.widget.SlidingPaneLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/sliding_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView
android:id="@+id/sliding_list"
android:layout_width="150dp"
android:layout_height="match_parent"
android:background="#111"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp" />
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_weight="1" />
</android.support.v4.widget.SlidingPaneLayout>
使用SlidingPaneLayout：
public class SlidingPaneLayoutActivity extends SherlockFragmentActivity {
private SlidingPaneLayout mSlidingPaneLayout;
private ListView mSliderList;
private ActionBarToggle mActionBarToggle;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private String[] mPlanetTitles;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_slider);
mTitle = mDrawerTitle = getTitle();
mPlanetTitles = getResources().getStringArray(R.array.planets_array);
mSlidingPaneLayout = (SlidingPaneLayout) findViewById(R.id.sliding_layout);
mSliderList = (ListView) findViewById(R.id.sliding_list);
// set a custom shadow that overlays the main content when the slider opens
mSlidingPaneLayout.setShadowResource(R.drawable.drawer_shadow);
// set up the slider's list view with items and click listener
mSliderList.setAdapter(new ArrayAdapter<String>(this,
R.layout.list_item, mPlanetTitles));
mSliderList.setOnItemClickListener(new DrawerItemClickListener());
// enable ActionBar app icon to behave as action to toggle sliding pane
getSupportActionBar().setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the sliding pane and the action bar app icon
mActionBarToggle = new ActionBarToggle(
this, /* host Activity */
mSlidingPaneLayout, /* SlidingPaneLayout object */
R.drawable.ic_drawer_light, /* sliding pane image to replace 'Up' caret */
R.string.slider_open, /* "open drawer" description for accessibility */
R.string.slider_close /* "close drawer" description for accessibility */
) {
@Override
public void closeView() {
getSupportActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
super.closeView();
}
@Override
public void openView() {
getSupportActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
super.openView();
}
};
mSlidingPaneLayout.setPanelSlideListener(mActionBarToggle);
if (savedInstanceState == null) {
selectItem(0);
}
}
@Override
public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
getSupportMenuInflater().inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onPrepareOptionsMenu(com.actionbarsherlock.view.Menu menu) {
// If the sliding pane is open, hide action items related to the content view
boolean drawerOpen = mSlidingPaneLayout.isOpen();
menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(
com.actionbarsherlock.view.MenuItem item) {
// The action bar home/up action should open or close the drawer.
// ActionBarDrawerToggle will take care of this.
if (mActionBarToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action buttons
switch(item.getItemId()) {
case R.id.action_websearch:
// create intent to perform web search for this planet
Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
intent.putExtra(SearchManager.QUERY, getSupportActionBar().getTitle());
// catch event that there's no activity to handle intent
if (intent.resolveActivity(getPackageManager()) != null) {
startActivity(intent);
} else {
Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show();
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* The click listner for ListView in the navigation drawer */
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
private void selectItem(int position) {
// update the main content by replacing fragments
Fragment fragment = new PlanetFragment();
Bundle args = new Bundle();
args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
fragment.setArguments(args);
getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the slider
mSliderList.setItemChecked(position, true);
setTitle(mPlanetTitles[position]);
mSlidingPaneLayout.closePane();
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getSupportActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mActionBarToggle.syncState();
getSupportActionBar().setDisplayHomeAsUpEnabled(mActionBarToggle.isDrawerIndicatorEnabled());
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the slider toggls
mActionBarToggle.onConfigurationChanged(newConfig);
getSupportActionBar().setDisplayHomeAsUpEnabled(mActionBarToggle.isDrawerIndicatorEnabled());
}
@Override
public void onBackPressed() {
if(mSlidingPaneLayout.isSlideable() && mSlidingPaneLayout.isOpen()){
mSlidingPaneLayout.closePane();
}
else{
super.onBackPressed();
}
}
/**
* Fragment that appears in the "content_frame", shows a planet
*/
public static class PlanetFragment extends Fragment {
public static final String ARG_PLANET_NUMBER = "planet_number";
public PlanetFragment() {
// Empty constructor required for fragment subclasses
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_planet, container, false);
int i = getArguments().getInt(ARG_PLANET_NUMBER);
String planet = getResources().getStringArray(R.array.planets_array)[i];
int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
"drawable", getActivity().getPackageName());
((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId);
getActivity().setTitle(planet);
return rootView;
}
}
}
SlidingPaneLayout的使用和Navigation Drawer相同，有疑问的地方可以参考demo。
/**
* @author 张兴业
参考：
