ActionBar tab mode using fragments; needs styles.
Change-Id: I8f931dae447e7b64de827d3c17766e5f8ad794e2
diff --git a/core/java/com/android/internal/app/ActionBarImpl.java b/core/java/com/android/internal/app/ActionBarImpl.java
index 6ac68aa..6cf455c 100644
--- a/core/java/com/android/internal/app/ActionBarImpl.java
+++ b/core/java/com/android/internal/app/ActionBarImpl.java
@@ -22,6 +22,9 @@
import com.android.internal.widget.ActionBarView;
import android.app.ActionBar;
+import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentTransaction;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.view.Menu;
@@ -31,6 +34,8 @@
import android.widget.SpinnerAdapter;
import android.widget.ViewAnimator;
+import java.util.ArrayList;
+
/**
* ActionBarImpl is the ActionBar implementation used
* by devices of all screen sizes. If it detects a compatible decor,
@@ -42,10 +47,21 @@
private static final int NORMAL_VIEW = 0;
private static final int CONTEXT_VIEW = 1;
+ private static final int TAB_SWITCH_SHOW_HIDE = 0;
+ private static final int TAB_SWITCH_ADD_REMOVE = 1;
+
+ private Activity mActivity;
+
private ViewAnimator mAnimatorView;
private ActionBarView mActionView;
private ActionBarContextView mUpperContextView;
private LinearLayout mLowerContextView;
+
+ private ArrayList<TabImpl> mTabs = new ArrayList<TabImpl>();
+
+ private int mTabContainerViewId = android.R.id.content;
+ private TabImpl mSelectedTab;
+ private int mTabSwitchMode = TAB_SWITCH_ADD_REMOVE;
private ContextMode mContextMode;
@@ -64,7 +80,9 @@
}
};
- public ActionBarImpl(View decor) {
+ public ActionBarImpl(Activity activity) {
+ final View decor = activity.getWindow().getDecorView();
+ mActivity = activity;
mActionView = (ActionBarView) decor.findViewById(com.android.internal.R.id.action_bar);
mUpperContextView = (ActionBarContextView) decor.findViewById(
com.android.internal.R.id.action_context_bar);
@@ -83,32 +101,54 @@
}
public void setCustomNavigationMode(View view) {
+ cleanupTabs();
mActionView.setCustomNavigationView(view);
mActionView.setCallback(null);
}
public void setDropdownNavigationMode(SpinnerAdapter adapter, NavigationCallback callback) {
+ cleanupTabs();
mActionView.setCallback(callback);
mActionView.setNavigationMode(NAVIGATION_MODE_DROPDOWN_LIST);
mActionView.setDropdownAdapter(adapter);
}
public void setStandardNavigationMode() {
+ cleanupTabs();
mActionView.setNavigationMode(NAVIGATION_MODE_STANDARD);
mActionView.setCallback(null);
}
public void setStandardNavigationMode(CharSequence title) {
+ cleanupTabs();
setStandardNavigationMode(title, null);
}
public void setStandardNavigationMode(CharSequence title, CharSequence subtitle) {
+ cleanupTabs();
mActionView.setNavigationMode(NAVIGATION_MODE_STANDARD);
mActionView.setTitle(title);
mActionView.setSubtitle(subtitle);
mActionView.setCallback(null);
}
+ private void cleanupTabs() {
+ if (mSelectedTab != null) {
+ selectTab(null);
+ }
+ if (!mTabs.isEmpty()) {
+ if (mTabSwitchMode == TAB_SWITCH_SHOW_HIDE) {
+ final FragmentTransaction trans = mActivity.openFragmentTransaction();
+ final int tabCount = mTabs.size();
+ for (int i = 0; i < tabCount; i++) {
+ trans.remove(mTabs.get(i).getFragment());
+ }
+ trans.commit();
+ }
+ mTabs.clear();
+ }
+ }
+
public void setTitle(CharSequence title) {
mActionView.setTitle(title);
}
@@ -174,6 +214,113 @@
}
}
+ private void configureTab(Tab tab, int position) {
+ final TabImpl tabi = (TabImpl) tab;
+ final boolean isFirstTab = mTabs.isEmpty();
+ final FragmentTransaction trans = mActivity.openFragmentTransaction();
+ final Fragment frag = tabi.getFragment();
+
+ tabi.setPosition(position);
+ mTabs.add(position, tabi);
+
+ if (mTabSwitchMode == TAB_SWITCH_SHOW_HIDE) {
+ if (!frag.isAdded()) {
+ trans.add(mTabContainerViewId, frag);
+ }
+ }
+
+ if (isFirstTab) {
+ if (mTabSwitchMode == TAB_SWITCH_SHOW_HIDE) {
+ trans.show(frag);
+ } else if (mTabSwitchMode == TAB_SWITCH_ADD_REMOVE) {
+ trans.add(mTabContainerViewId, frag);
+ }
+ mSelectedTab = tabi;
+ } else {
+ if (mTabSwitchMode == TAB_SWITCH_SHOW_HIDE) {
+ trans.hide(frag);
+ }
+ }
+ trans.commit();
+ }
+
+ @Override
+ public void addTab(Tab tab) {
+ mActionView.addTab(tab);
+ configureTab(tab, mTabs.size());
+ }
+
+ @Override
+ public void insertTab(Tab tab, int position) {
+ mActionView.insertTab(tab, position);
+ configureTab(tab, position);
+ }
+
+ @Override
+ public Tab newTab() {
+ return new TabImpl();
+ }
+
+ @Override
+ public void removeTab(Tab tab) {
+ removeTabAt(tab.getPosition());
+ }
+
+ @Override
+ public void removeTabAt(int position) {
+ mActionView.removeTabAt(position);
+ mTabs.remove(position);
+
+ final int newTabCount = mTabs.size();
+ for (int i = position; i < newTabCount; i++) {
+ mTabs.get(i).setPosition(i);
+ }
+
+ selectTab(mTabs.isEmpty() ? null : mTabs.get(Math.max(0, position - 1)));
+ }
+
+ @Override
+ public void setTabNavigationMode() {
+ mActionView.setNavigationMode(NAVIGATION_MODE_TABS);
+ }
+
+ @Override
+ public void setTabNavigationMode(int containerViewId) {
+ mTabContainerViewId = containerViewId;
+ setTabNavigationMode();
+ }
+
+ @Override
+ public void selectTab(Tab tab) {
+ if (mSelectedTab == tab) {
+ return;
+ }
+
+ mActionView.setTabSelected(tab != null ? tab.getPosition() : Tab.INVALID_POSITION);
+ final FragmentTransaction trans = mActivity.openFragmentTransaction();
+ if (mSelectedTab != null) {
+ if (mTabSwitchMode == TAB_SWITCH_SHOW_HIDE) {
+ trans.hide(mSelectedTab.getFragment());
+ } else if (mTabSwitchMode == TAB_SWITCH_ADD_REMOVE) {
+ trans.remove(mSelectedTab.getFragment());
+ }
+ }
+ if (tab != null) {
+ if (mTabSwitchMode == TAB_SWITCH_SHOW_HIDE) {
+ trans.show(tab.getFragment());
+ } else if (mTabSwitchMode == TAB_SWITCH_ADD_REMOVE) {
+ trans.add(mTabContainerViewId, tab.getFragment());
+ }
+ }
+ mSelectedTab = (TabImpl) tab;
+ trans.commit();
+ }
+
+ @Override
+ public void selectTabAt(int position) {
+ selectTab(mTabs.get(position));
+ }
+
/**
* @hide
*/
@@ -233,6 +380,60 @@
if (!actionItem.invoke()) {
mCallback.onContextItemClicked(this, item);
}
+ }
+ }
+
+ /**
+ * @hide
+ */
+ public class TabImpl extends ActionBar.Tab {
+ private Fragment mFragment;
+ private Drawable mIcon;
+ private CharSequence mText;
+ private int mPosition;
+
+ @Override
+ public Fragment getFragment() {
+ return mFragment;
+ }
+
+ @Override
+ public Drawable getIcon() {
+ return mIcon;
+ }
+
+ @Override
+ public int getPosition() {
+ return mPosition;
+ }
+
+ public void setPosition(int position) {
+ mPosition = position;
+ }
+
+ @Override
+ public CharSequence getText() {
+ return mText;
+ }
+
+ @Override
+ public void setFragment(Fragment fragment) {
+ mFragment = fragment;
+ }
+
+ @Override
+ public void setIcon(Drawable icon) {
+ mIcon = icon;
+ }
+
+ @Override
+ public void setText(CharSequence text) {
+ mText = text;
+ }
+
+ @Override
+ public void select() {
+ selectTab(this);
}
}
}