/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.widget;
import com.android.internal.R;
import android.annotation.StringRes;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.database.DataSetObserver;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.ActionProvider;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.ActivityChooserModel.ActivityChooserModelClient;
import android.widget.ListPopupWindow.ForwardingListener;
/**
* This class is a view for choosing an activity for handling a given {@link Intent}.
* <p>
* The view is composed of two adjacent buttons:
* <ul>
* <li>
* The left button is an immediate action and allows one click activity choosing.
* Tapping this button immediately executes the intent without requiring any further
* user input. Long press on this button shows a popup for changing the default
* activity.
* </li>
* <li>
* The right button is an overflow action and provides an optimized menu
* of additional activities. Tapping this button shows a popup anchored to this
* view, listing the most frequently used activities. This list is initially
* limited to a small number of items in frequency used order. The last item,
* "Show all..." serves as an affordance to display all available activities.
* </li>
* </ul>
* </p>
*
* @hide
*/
public class ActivityChooserView extends ViewGroup implements ActivityChooserModelClient {
private static final String LOG_TAG = "ActivityChooserView";
/**
* An adapter for displaying the activities in an {@link AdapterView}.
*/
private final ActivityChooserViewAdapter mAdapter;
/**
* Implementation of various interfaces to avoid publishing them in the APIs.
*/
private final Callbacks mCallbacks;
/**
* The content of this view.
*/
private final LinearLayout mActivityChooserContent;
/**
* Stores the background drawable to allow hiding and latter showing.
*/
private final Drawable mActivityChooserContentBackground;
/**
* The expand activities action button;
*/
private final FrameLayout mExpandActivityOverflowButton;
/**
* The image for the expand activities action button;
*/
private final ImageView mExpandActivityOverflowButtonImage;
/**
* The default activities action button;
*/
private final FrameLayout mDefaultActivityButton;
/**
* The image for the default activities action button;
*/
private final ImageView mDefaultActivityButtonImage;
/**
* The maximal width of the list popup.
*/
private final int mListPopupMaxWidth;
/**
* The ActionProvider hosting this view, if applicable.
*/
ActionProvider mProvider;
/**
* Observer for the model data.
*/
private final DataSetObserver mModelDataSetOberver = new DataSetObserver() {
@Override
public void onChanged() {
super.onChanged();
mAdapter.notifyDataSetChanged();
}
@Override
public void onInvalidated() {
super.onInvalidated();
mAdapter.notifyDataSetInvalidated();
}
};
private final OnGlobalLayoutListener mOnGlobalLayoutListener = new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
if (isShowingPopup()) {
if (!isShown()) {
getListPopupWindow().dismiss();
} else {
getListPopupWindow().show();
if (mProvider != null) {
mProvider.subUiVisibilityChanged(true);
}
}
}
}
};
/**
* Popup window for showing the activity overflow list.
*/
private ListPopupWindow mListPopupWindow;
/**
* Listener for the dismissal of the popup/alert.
*/
private PopupWindow.OnDismissListener mOnDismissListener;
/**
* Flag whether a default activity currently being selected.
*/
private boolean mIsSelectingDefaultActivity;
/**
* The count of activities in the popup.
*/
private int mInitialActivityCount = ActivityChooserViewAdapter.MAX_ACTIVITY_COUNT_DEFAULT;
/**
* Flag whether this view is attached to a window.
*/
private boolean mIsAttachedToWindow;
/**
* String resource for formatting content description of the default target.
*/
private int mDefaultActionButtonContentDescription;
/**
* Create a new instance.
*
* @param context The application environment.
*/
public ActivityChooserView(Context context) {
this(context, null);
}
/**
* Create a new instance.
*
* @param context The application environment.
* @param attrs A collection of attributes.
*/
public ActivityChooserView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
/**
* Create a new instance.
*
* @param context The application environment.
* @param attrs A collection of attributes.
* @param defStyleAttr An attribute in the current theme that contains a
* reference to a style resource that supplies default values for
* the view. Can be 0 to not look for defaults.
*/
public ActivityChooserView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
/**
* Create a new instance.
*
* @param context The application environment.
* @param attrs A collection of attributes.
* @param defStyleAttr An attribute in the current theme that contains a
* reference to a style resource that supplies default values for
* the view. Can be 0 to not look for defaults.
* @param defStyleRes A resource identifier of a style resource that
* supplies default values for the view, used only if
* defStyleAttr is 0 or can not be found in the theme. Can be 0
* to not look for defaults.
*/
public ActivityChooserView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
TypedArray attributesArray = context.obtainStyledAttributes(attrs,
R.styleable.ActivityChooserView, defStyleAttr, defStyleRes);
mInitialActivityCount = attributesArray.getInt(
R.styleable.ActivityChooserView_initialActivityCount,
ActivityChooserViewAdapter.MAX_ACTIVITY_COUNT_DEFAULT);
Drawable expandActivityOverflowButtonDrawable = attributesArray.getDrawable(
R.styleable.ActivityChooserView_expandActivityOverflowButtonDrawable);
attributesArray.recycle();
LayoutInflater inflater = LayoutInflater.from(mContext);
inflater.inflate(R.layout.activity_chooser_view, this, true);
mCallbacks = new Callbacks();
mActivityChooserContent = (LinearLayout) findViewById(R.id.activity_chooser_view_content);
mActivityChooserContentBackground = mActivityChooserContent.getBackground();
mDefaultActivityButton = (FrameLayout) findViewById(R.id.default_activity_button);
mDefaultActivityButton.setOnClickListener(mCallbacks);
mDefaultActivityButton.setOnLongClickListener(mCallbacks);
mDefaultActivityButtonImage = (ImageView) mDefaultActivityButton.findViewById(R.id.image);
final FrameLayout expandButton = (FrameLayout) findViewById(R.id.expand_activities_button);
expandButton.setOnClickListener(mCallbacks);
expandButton.setAccessibilityDelegate(new AccessibilityDelegate() {
@Override
public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(host, info);
info.setCanOpenPopup(true);
}
});
expandButton.setOnTouchListener(new ForwardingListener(expandButton) {
@Override
public ListPopupWindow getPopup() {
return getListPopupWindow();
}
@Override
protected boolean onForwardingStarted() {
showPopup();
return true;
}
@Override
protected boolean onForwardingStopped() {
dismissPopup();
return true;
}
});
mExpandActivityOverflowButton = expandButton;
mExpandActivityOverflowButtonImage =
(ImageView) expandButton.findViewById(R.id.image);
mExpandActivityOverflowButtonImage.setImageDrawable(expandActivityOverflowButtonDrawable);
mAdapter = new ActivityChooserViewAdapter();
mAdapter.registerDataSetObserver(new DataSetObserver() {
@Override
public void onChanged() {
super.onChanged();
updateAppearance();
}
});
Resources resources = context.getResources();
mListPopupMaxWidth = Math.max(resources.getDisplayMetrics().widthPixels / 2,
resources.getDimensionPixelSize(com.android.internal.R.dimen.config_prefDialogWidth));
}
/**
* {@inheritDoc}
*/
public void setActivityChooserModel(ActivityChooserModel dataModel) {
mAdapter.setDataModel(dataModel);
if (isShowingPopup()) {
dismissPopup();
showPopup();
}
}
/**
* Sets the background for the button that expands the activity
* overflow list.
*
* <strong>Note:</strong> Clients would like to set this drawable
* as a clue about the action the chosen activity will perform. For
* example, if a share activity is to be chosen the drawable should
* give a clue that sharing is to be performed.
*
* @param drawable The drawable.
*/
public void setExpandActivityOverflowButtonDrawable(Drawable drawable) {
mExpandActivityOverflowButtonImage.setImageDrawable(drawable);
}
/**
* Sets the content description for the button that expands the activity
* overflow list.
*
* description as a clue about the action performed by the button.
* For example, if a share activity is to be chosen the content
* description should be something like "Share with".
*
* @param resourceId The content description resource id.
*/
public void setExpandActivityOverflowButtonContentDescription(@StringRes int resourceId) {
CharSequence contentDescription = mContext.getString(resourceId);
mExpandActivityOverflowButtonImage.setContentDescription(contentDescription);
}
/**
* Set the provider hosting this view, if applicable.
* @hide Internal use only
*/
public void setProvider(ActionProvider provider) {
mProvider = provider;
}
/**
* Shows the popup window with activities.
*
* @return True if the popup was shown, false if already showing.
*/
public boolean showPopup() {
if (isShowingPopup() || !mIsAttachedToWindow) {
return false;
}
mIsSelectingDefaultActivity = false;
showPopupUnchecked(mInitialActivityCount);
return true;
}
/**
* Shows the popup no matter if it was already showing.
*
* @param maxActivityCount The max number of activities to display.
*/
private void showPopupUnchecked(int maxActivityCount) {
if (mAdapter.getDataModel() == null) {
throw new IllegalStateException("No data model. Did you call #setDataModel?");
}
getViewTreeObserver().addOnGlobalLayoutListener(mOnGlobalLayoutListener);
final boolean defaultActivityButtonShown =
mDefaultActivityButton.getVisibility() == VISIBLE;
final int activityCount = mAdapter.getActivityCount();
final int maxActivityCountOffset = defaultActivityButtonShown ? 1 : 0;
if (maxActivityCount != ActivityChooserViewAdapter.MAX_ACTIVITY_COUNT_UNLIMITED
&& activityCount > maxActivityCount + maxActivityCountOffset) {
mAdapter.setShowFooterView(true);
mAdapter.setMaxActivityCount(maxActivityCount - 1);
} else {
mAdapter.setShowFooterView(false);
mAdapter.setMaxActivityCount(maxActivityCount);
}
ListPopupWindow popupWindow = getListPopupWindow();
if (!popupWindow.isShowing()) {
if (mIsSelectingDefaultActivity || !defaultActivityButtonShown) {
mAdapter.setShowDefaultActivity(true, defaultActivityButtonShown);
} else {
mAdapter.setShowDefaultActivity(false, false);
}
final int contentWidth = Math.min(mAdapter.measureContentWidth(), mListPopupMaxWidth);
popupWindow.setContentWidth(contentWidth);
popupWindow.show();
if (mProvider != null) {
mProvider.subUiVisibilityChanged(true);
}
popupWindow.getListView().setContentDescription(mContext.getString(
R.string.activitychooserview_choose_application));
}
}
/**
* Dismisses the popup window with activities.
*
* @return True if dismissed, false if already dismissed.
*/
public boolean dismissPopup() {
if (isShowingPopup()) {
getListPopupWindow().dismiss();
ViewTreeObserver viewTreeObserver = getViewTreeObserver();
if (viewTreeObserver.isAlive()) {
viewTreeObserver.removeOnGlobalLayoutListener(mOnGlobalLayoutListener);
}
}
return true;
}
/**
* Gets whether the popup window with activities is shown.
*
* @return True if the popup is shown.
*/
public boolean isShowingPopup() {
return getListPopupWindow().isShowing();
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
ActivityChooserModel dataModel = mAdapter.getDataModel();
if (dataModel != null) {
dataModel.registerObserver(mModelDataSetOberver);
}
mIsAttachedToWindow = true;
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
ActivityChooserModel dataModel = mAdapter.getDataModel();
if (dataModel != null) {
dataModel.unregisterObserver(mModelDataSetOberver);
}
ViewTreeObserver viewTreeObserver = getViewTreeObserver();
if (viewTreeObserver.isAlive()) {
viewTreeObserver.removeOnGlobalLayoutListener(mOnGlobalLayoutListener);
}
if (isShowingPopup()) {
dismissPopup();
}
mIsAttachedToWindow = false;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
View child = mActivityChooserContent;
// If the default action is not visible we want to be as tall as the
// ActionBar so if this widget is used in the latter it will look as
// a normal action button.
if (mDefaultActivityButton.getVisibility() != VISIBLE) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(heightMeasureSpec),
MeasureSpec.EXACTLY);
}
measureChild(child, widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(child.getMeasuredWidth(), child.getMeasuredHeight());
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
mActivityChooserContent.layout(0, 0, right - left, bottom - top);
if (!isShowingPopup()) {
dismissPopup();
}
}
public ActivityChooserModel getDataModel() {
return mAdapter.getDataModel();
}
/**
* Sets a listener to receive a callback when the popup is dismissed.
*
* @param listener The listener to be notified.
*/
public void setOnDismissListener(PopupWindow.OnDismissListener listener) {
mOnDismissListener = listener;
}
/**
* Sets the initial count of items shown in the activities popup
* i.e. the items before the popup is expanded. This is an upper
* bound since it is not guaranteed that such number of intent
* handlers exist.
*
* @param itemCount The initial popup item count.
*/
public void setInitialActivityCount(int itemCount) {
mInitialActivityCount = itemCount;
}
/**
* Sets a content description of the default action button. This
* resource should be a string taking one formatting argument and
* will be used for formatting the content description of the button
* dynamically as the default target changes. For example, a resource
* pointing to the string "share with %1$s" will result in a content
* description "share with Bluetooth" for the Bluetooth activity.
*
* @param resourceId The resource id.
*/
public void setDefaultActionButtonContentDescription(@StringRes int resourceId) {
mDefaultActionButtonContentDescription = resourceId;
}
/**
* Gets the list popup window which is lazily initialized.
*
* @return The popup.
*/
private ListPopupWindow getListPopupWindow() {
if (mListPopupWindow == null) {
mListPopupWindow = new ListPopupWindow(getContext());
mListPopupWindow.setAdapter(mAdapter);
mListPopupWindow.setAnchorView(ActivityChooserView.this);
mListPopupWindow.setModal(true);
mListPopupWindow.setOnItemClickListener(mCallbacks);
mListPopupWindow.setOnDismissListener(mCallbacks);
}
return mListPopupWindow;
}
/**
* Updates the buttons state.
*/
private void updateAppearance() {
// Expand overflow button.
if (mAdapter.getCount() > 0) {
mExpandActivityOverflowButton.setEnabled(true);
} else {
mExpandActivityOverflowButton.setEnabled(false);
}
// Default activity button.
final int activityCount = mAdapter.getActivityCount();
final int historySize = mAdapter.getHistorySize();
if (activityCount==1 || activityCount > 1 && historySize > 0) {
mDefaultActivityButton.setVisibility(VISIBLE);
ResolveInfo activity = mAdapter.getDefaultActivity();
PackageManager packageManager = mContext.getPackageManager();
mDefaultActivityButtonImage.setImageDrawable(activity.loadIcon(packageManager));
if (mDefaultActionButtonContentDescription != 0) {
CharSequence label = activity.loadLabel(packageManager);
String contentDescription = mContext.getString(
mDefaultActionButtonContentDescription, label);
mDefaultActivityButton.setContentDescription(contentDescription);
}
} else {
mDefaultActivityButton.setVisibility(View.GONE);
}
// Activity chooser content.
if (mDefaultActivityButton.getVisibility() == VISIBLE) {
mActivityChooserContent.setBackground(mActivityChooserContentBackground);
} else {
mActivityChooserContent.setBackground(null);
}
}
/**
* Interface implementation to avoid publishing them in the APIs.
*/
private class Callbacks implements AdapterView.OnItemClickListener,
View.OnClickListener, View.OnLongClickListener, PopupWindow.OnDismissListener {
// AdapterView#OnItemClickListener
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
ActivityChooserViewAdapter adapter = (ActivityChooserViewAdapter) parent.getAdapter();
final int itemViewType = adapter.getItemViewType(position);
switch (itemViewType) {
case ActivityChooserViewAdapter.ITEM_VIEW_TYPE_FOOTER: {
showPopupUnchecked(ActivityChooserViewAdapter.MAX_ACTIVITY_COUNT_UNLIMITED);
} break;
case ActivityChooserViewAdapter.ITEM_VIEW_TYPE_ACTIVITY: {
dismissPopup();
if (mIsSelectingDefaultActivity) {
// The item at position zero is the default already.
if (position > 0) {
mAdapter.getDataModel().setDefaultActivity(position);
}
} else {
// If the default target is not shown in the list, the first
// item in the model is default action => adjust index
position = mAdapter.getShowDefaultActivity() ? position : position + 1;
Intent launchIntent = mAdapter.getDataModel().chooseActivity(position);
if (launchIntent != null) {
launchIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
ResolveInfo resolveInfo = mAdapter.getDataModel().getActivity(position);
startActivity(launchIntent, resolveInfo);
}
}
} break;
default:
throw new IllegalArgumentException();
}
}
// View.OnClickListener
public void onClick(View view) {
if (view == mDefaultActivityButton) {
dismissPopup();
ResolveInfo defaultActivity = mAdapter.getDefaultActivity();
final int index = mAdapter.getDataModel().getActivityIndex(defaultActivity);
Intent launchIntent = mAdapter.getDataModel().chooseActivity(index);
if (launchIntent != null) {
launchIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
startActivity(launchIntent, defaultActivity);
}
} else if (view == mExpandActivityOverflowButton) {
mIsSelectingDefaultActivity = false;
showPopupUnchecked(mInitialActivityCount);
} else {
throw new IllegalArgumentException();
}
}
// OnLongClickListener#onLongClick
@Override
public boolean onLongClick(View view) {
if (view == mDefaultActivityButton) {
if (mAdapter.getCount() > 0) {
mIsSelectingDefaultActivity = true;
showPopupUnchecked(mInitialActivityCount);
}
} else {
throw new IllegalArgumentException();
}
return true;
}
// PopUpWindow.OnDismissListener#onDismiss
public void onDismiss() {
notifyOnDismissListener();
if (mProvider != null) {
mProvider.subUiVisibilityChanged(false);
}
}
private void notifyOnDismissListener() {
if (mOnDismissListener != null) {
mOnDismissListener.onDismiss();
}
}
private void startActivity(Intent intent, ResolveInfo resolveInfo) {
try {
mContext.startActivity(intent);
} catch (RuntimeException re) {
CharSequence appLabel = resolveInfo.loadLabel(mContext.getPackageManager());
String message = mContext.getString(
R.string.activitychooserview_choose_application_error, appLabel);
Log.e(LOG_TAG, message);
Toast.makeText(mContext, message, Toast.LENGTH_SHORT).show();
}
}
}
/**
* Adapter for backing the list of activities shown in the popup.
*/
private class ActivityChooserViewAdapter extends BaseAdapter {
public static final int MAX_ACTIVITY_COUNT_UNLIMITED = Integer.MAX_VALUE;
public static final int MAX_ACTIVITY_COUNT_DEFAULT = 4;
private static final int ITEM_VIEW_TYPE_ACTIVITY = 0;
private static final int ITEM_VIEW_TYPE_FOOTER = 1;
private static final int ITEM_VIEW_TYPE_COUNT = 3;
private ActivityChooserModel mDataModel;
private int mMaxActivityCount = MAX_ACTIVITY_COUNT_DEFAULT;
private boolean mShowDefaultActivity;
private boolean mHighlightDefaultActivity;
private boolean mShowFooterView;
public void setDataModel(ActivityChooserModel dataModel) {
ActivityChooserModel oldDataModel = mAdapter.getDataModel();
if (oldDataModel != null && isShown()) {
oldDataModel.unregisterObserver(mModelDataSetOberver);
}
mDataModel = dataModel;
if (dataModel != null && isShown()) {
dataModel.registerObserver(mModelDataSetOberver);
}
notifyDataSetChanged();
}
@Override
public int getItemViewType(int position) {
if (mShowFooterView && position == getCount() - 1) {
return ITEM_VIEW_TYPE_FOOTER;
} else {
return ITEM_VIEW_TYPE_ACTIVITY;
}
}
@Override
public int getViewTypeCount() {
return ITEM_VIEW_TYPE_COUNT;
}
public int getCount() {
int count = 0;
int activityCount = mDataModel.getActivityCount();
if (!mShowDefaultActivity && mDataModel.getDefaultActivity() != null) {
activityCount--;
}
count = Math.min(activityCount, mMaxActivityCount);
if (mShowFooterView) {
count++;
}
return count;
}
public Object getItem(int position) {
final int itemViewType = getItemViewType(position);
switch (itemViewType) {
case ITEM_VIEW_TYPE_FOOTER:
return null;
case ITEM_VIEW_TYPE_ACTIVITY:
if (!mShowDefaultActivity && mDataModel.getDefaultActivity() != null) {
position++;
}
return mDataModel.getActivity(position);
default:
throw new IllegalArgumentException();
}
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
final int itemViewType = getItemViewType(position);
switch (itemViewType) {
case ITEM_VIEW_TYPE_FOOTER:
if (convertView == null || convertView.getId() != ITEM_VIEW_TYPE_FOOTER) {
convertView = LayoutInflater.from(getContext()).inflate(
R.layout.activity_chooser_view_list_item, parent, false);
convertView.setId(ITEM_VIEW_TYPE_FOOTER);
TextView titleView = (TextView) convertView.findViewById(R.id.title);
titleView.setText(mContext.getString(
R.string.activity_chooser_view_see_all));
}
return convertView;
case ITEM_VIEW_TYPE_ACTIVITY:
if (convertView == null || convertView.getId() != R.id.list_item) {
convertView = LayoutInflater.from(getContext()).inflate(
R.layout.activity_chooser_view_list_item, parent, false);
}
PackageManager packageManager = mContext.getPackageManager();
// Set the icon
ImageView iconView = (ImageView) convertView.findViewById(R.id.icon);
ResolveInfo activity = (ResolveInfo) getItem(position);
iconView.setImageDrawable(activity.loadIcon(packageManager));
// Set the title.
TextView titleView = (TextView) convertView.findViewById(R.id.title);
titleView.setText(activity.loadLabel(packageManager));
// Highlight the default.
if (mShowDefaultActivity && position == 0 && mHighlightDefaultActivity) {
convertView.setActivated(true);
} else {
convertView.setActivated(false);
}
return convertView;
default:
throw new IllegalArgumentException();
}
}
public int measureContentWidth() {
// The user may have specified some of the target not to be shown but we
// want to measure all of them since after expansion they should fit.
final int oldMaxActivityCount = mMaxActivityCount;
mMaxActivityCount = MAX_ACTIVITY_COUNT_UNLIMITED;
int contentWidth = 0;
View itemView = null;
final int widthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
final int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
final int count = getCount();
for (int i = 0; i < count; i++) {
itemView = getView(i, itemView, null);
itemView.measure(widthMeasureSpec, heightMeasureSpec);
contentWidth = Math.max(contentWidth, itemView.getMeasuredWidth());
}
mMaxActivityCount = oldMaxActivityCount;
return contentWidth;
}
public void setMaxActivityCount(int maxActivityCount) {
if (mMaxActivityCount != maxActivityCount) {
mMaxActivityCount = maxActivityCount;
notifyDataSetChanged();
}
}
public ResolveInfo getDefaultActivity() {
return mDataModel.getDefaultActivity();
}
public void setShowFooterView(boolean showFooterView) {
if (mShowFooterView != showFooterView) {
mShowFooterView = showFooterView;
notifyDataSetChanged();
}
}
public int getActivityCount() {
return mDataModel.getActivityCount();
}
public int getHistorySize() {
return mDataModel.getHistorySize();
}
public ActivityChooserModel getDataModel() {
return mDataModel;
}
public void setShowDefaultActivity(boolean showDefaultActivity,
boolean highlightDefaultActivity) {
if (mShowDefaultActivity != showDefaultActivity
|| mHighlightDefaultActivity != highlightDefaultActivity) {
mShowDefaultActivity = showDefaultActivity;
mHighlightDefaultActivity = highlightDefaultActivity;
notifyDataSetChanged();
}
}
public boolean getShowDefaultActivity() {
return mShowDefaultActivity;
}
}
}