contactlistactivity.java

Android平台上即时通讯聊天工具源代码。 支持手机聊天。

            handled = mContactListView.dispatchKeyEvent(event);
            if (!handled && isReadable(keyCode, event)
                    && (KeyEvent.ACTION_DOWN == event.getAction())) {
                showFilterView();
                handled = mFilterView.dispatchKeyEvent(event);
            }
        }

        if (!handled) {
            handled = super.dispatchKeyEvent(event);
        }

        return handled;
    }

    private static boolean isReadable(int keyCode, KeyEvent event) {
        if (KeyEvent.isModifierKey(keyCode) || event.isSystem()) {
            return false;
        }

        switch (keyCode) {
        case KeyEvent.KEYCODE_DPAD_CENTER:
        case KeyEvent.KEYCODE_DPAD_DOWN:
        case KeyEvent.KEYCODE_DPAD_LEFT:
        case KeyEvent.KEYCODE_DPAD_RIGHT:
        case KeyEvent.KEYCODE_DPAD_UP:
        case KeyEvent.KEYCODE_ENTER:
            return false;
        }

        return true;
    }

    private void showFilterView() {
        if (mFilterView == null ) {
            mFilterView = (ContactListFilterView)getLayoutInflater().inflate(
                    R.layout.contact_list_filter_view, null);
            mFilterView.getListView().setOnCreateContextMenuListener(this);
        }
        Uri uri = mSettingMap.getHideOfflineContacts() ? Im.Contacts.CONTENT_URI_ONLINE_CONTACTS_BY
                : Im.Contacts.CONTENT_URI_CONTACTS_BY;
        uri = ContentUris.withAppendedId(uri, mProviderId);
        uri = ContentUris.withAppendedId(uri, mAccountId);
        mFilterView.doFilter(uri, null);

        setContentView(mFilterView);
        mFilterView.requestFocus();
        mIsFiltering = true;
    }

    void showContactListView() {
        if (mIsFiltering) {
            setContentView(mContactListView);
            mContactListView.requestFocus();
            mContactListView.invalidate();
            mIsFiltering = false;
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        mApp.unregisterForConnEvents(mHandler);
    }

    @Override
    protected void onResume() {
        super.onResume();
        mApp.registerForConnEvents(mHandler);
    }

    @Override
    protected void onDestroy() {
        mDestroyed = true;
        // set connection to null to unregister listeners.
        mContactListView.setConnection(null);
        if (mSettingMap != null) {
            mSettingMap.close();
        }
        super.onDestroy();
    }

    static void log(String msg) {
        Log.d(ImApp.LOG_TAG, "<ContactListActivity> " +msg);
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
        boolean chatSelected = false;
        boolean contactSelected = false;
        Cursor contactCursor;
        if (mIsFiltering) {
            AdapterView.AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
            mContextMenuHandler.mPosition = info.position;
            contactSelected = true;
            contactCursor = mFilterView.getContactAtPosition(info.position);
        } else {
            ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) menuInfo;
            mContextMenuHandler.mPosition = info.packedPosition;
            contactSelected = mContactListView.isContactAtPosition(info.packedPosition);
            chatSelected = mContactListView.isConversationAtPosition(info.packedPosition);
            contactCursor = mContactListView.getContactAtPosition(info.packedPosition);
        }

        boolean allowBlock = true;
        if (contactCursor != null) {
            //XXX HACK: Yahoo! doesn't allow to block a friend. We can only block a temporary contact.
            ProviderDef provider = mApp.getProvider(mProviderId);
            if (Im.ProviderNames.YAHOO.equals(provider.mName)) {
                int type = contactCursor.getInt(contactCursor.getColumnIndexOrThrow(Im.Contacts.TYPE));
                allowBlock = (type == Im.Contacts.TYPE_TEMPORARY);
            }

            int nickNameIndex = contactCursor.getColumnIndexOrThrow(Im.Contacts.NICKNAME);

            menu.setHeaderTitle(contactCursor.getString(nickNameIndex));
        }

        BrandingResources brandingRes = mApp.getBrandingResource(mProviderId);
        String menu_end_conversation = brandingRes.getString(
                BrandingResourceIDs.STRING_MENU_END_CHAT);
        String menu_view_profile = brandingRes.getString(
                BrandingResourceIDs.STRING_MENU_VIEW_PROFILE);
        String menu_block_contact = brandingRes.getString(
                BrandingResourceIDs.STRING_MENU_BLOCK_CONTACT);
        String menu_start_conversation = brandingRes.getString(
                BrandingResourceIDs.STRING_MENU_START_CHAT);
        String menu_delete_contact = brandingRes.getString(
                BrandingResourceIDs.STRING_MENU_DELETE_CONTACT);

        if (chatSelected) {
            menu.add(0, MENU_END_CONVERSATION, 0, menu_end_conversation)
                    .setIcon(R.drawable.ic_menu_end_conversation)
                    .setOnMenuItemClickListener(mContextMenuHandler);
            menu.add(0, MENU_VIEW_PROFILE, 0, menu_view_profile)
                    .setIcon(R.drawable.ic_menu_my_profile)
                    .setOnMenuItemClickListener(mContextMenuHandler);
            if (allowBlock) {
                menu.add(0, MENU_BLOCK_CONTACT, 0, menu_block_contact)
                        .setIcon(R.drawable.ic_menu_block)
                        .setOnMenuItemClickListener(mContextMenuHandler);
            }
        } else if (contactSelected) {
            menu.add(0, MENU_START_CONVERSATION, 0, menu_start_conversation)
                    .setIcon(R.drawable.ic_menu_start_conversation)
                    .setOnMenuItemClickListener(mContextMenuHandler);
            menu.add(0, MENU_VIEW_PROFILE, 0, menu_view_profile)
                    .setIcon(R.drawable.ic_menu_view_profile)
                    .setOnMenuItemClickListener(mContextMenuHandler);
            if (allowBlock) {
                menu.add(0, MENU_BLOCK_CONTACT, 0, menu_block_contact)
                        .setIcon(R.drawable.ic_menu_block)
                        .setOnMenuItemClickListener(mContextMenuHandler);
            }
            menu.add(0, MENU_DELETE_CONTACT, 0, menu_delete_contact)
                    .setIcon(android.R.drawable.ic_menu_delete)
                    .setOnMenuItemClickListener(mContextMenuHandler);
        }
    }

    final class ContextMenuHandler implements MenuItem.OnMenuItemClickListener {
        long mPosition;

        public boolean onMenuItemClick(MenuItem item) {
            Cursor c;
            if (mIsFiltering) {
                c = mFilterView.getContactAtPosition((int)mPosition);
            } else {
                c = mContactListView.getContactAtPosition(mPosition);
            }

            switch (item.getItemId()) {
            case MENU_START_CONVERSATION:
                mContactListView.startChat(c);
                break;
            case MENU_VIEW_PROFILE:
                mContactListView.viewContactPresence(c);
                break;
            case MENU_BLOCK_CONTACT:
                mContactListView.blockContact(c);
                break;
            case MENU_DELETE_CONTACT:
                mContactListView.removeContact(c);
                break;
            case MENU_END_CONVERSATION:
                mContactListView.endChat(c);
                break;
            default:
                return false;
            }

            if (mIsFiltering) {
                showContactListView();
            }
            return true;
        }
    }

    final class MyHandler extends SimpleAlertHandler {
        public MyHandler(Activity activity) {
            super(activity);
        }

        @Override
        public void handleMessage(Message msg) {
            if (msg.what == ImApp.EVENT_CONNECTION_DISCONNECTED) {
                if (Log.isLoggable(ImApp.LOG_TAG, Log.DEBUG)) {
                    log("Handle event connection disconnected.");
                }
                promptDisconnectedEvent(msg);
                long providerId = ((long)msg.arg1 << 32) | msg.arg2;
                if (providerId == mProviderId) {
                    if (Log.isLoggable(ImApp.LOG_TAG, Log.DEBUG)) {
                        log("Current connection disconnected, finish");
                    }
                    finish();
                }
                return;
            }
            super.handleMessage(msg);
        }
    }
}