快速滑动代码,具体描述见博客

package com.android.car.dialer.ui.fragment.contact; import static android.content.Context.INPUT_METHOD_SERVICE; import android.bluetooth.BluetoothPbapClient; import android.graphics.Bitmap; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.text.Editable; import android.text.TextWatcher; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.InputMethodManager; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.RelativeLayout; import android.widget.TextView; import androidx.fragment.app.Fragment; import androidx.lifecycle.Observer; import androidx.lifecycle.ViewModelProvider; import androidx.recyclerview.widget.DividerItemDecoration; import androidx.recyclerview.widget.GridLayoutManager; import androidx.recyclerview.widget.ItemTouchHelper; import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.RecyclerView; import com.android.car.btcallsdk.utils.HandlerUtils; import com.android.car.dialer.DialerApplication; import com.android.car.dialer.R; import com.android.car.dialer.adapter.ContactAdapter; import com.android.car.dialer.adapter.ContactsDetailsAdapter; import com.android.car.dialer.adapter.FavoriteContactAdapter; import com.android.car.dialer.bean.Contacts; import com.android.car.dialer.bean.ContactsBean; import com.android.car.dialer.bean.FavoriteContactBean; import com.android.car.dialer.common.CallBackManager; import com.android.car.dialer.common.DownloadContactCallBack; import com.android.car.dialer.common.HidePopupListener; import com.android.car.dialer.common.IDataClearListener; import com.android.car.dialer.database.BTCallDataBase; import com.android.car.dialer.database.ContactsDao; import com.android.car.dialer.fastscroll.FastScrollRecyclerView; import com.android.car.dialer.log.L; import com.android.car.dialer.mode.ContactsAndCallLogPBAPClientCallback; import com.android.car.dialer.ui.TelecomActivity; import com.android.car.dialer.util.BlueToothManager; import com.android.car.dialer.util.BlueToothUtil; import com.android.car.dialer.util.ConstantUtil; import com.android.car.dialer.util.ContactsHelper; import com.android.car.dialer.util.PinyinComparatorUtil; import com.android.car.dialer.util.RecycleViewSpacesItemDecoration; import com.android.car.dialer.util.ThreadPoolHelper; import com.android.car.dialer.util.ViewUtil; import com.android.car.dialer.viewmodel.ContactListViewModel; import com.fawvw.cnsviews.dd.CursorDD; import com.fawvw.cnsviews.dlg.GenericPopupDialog; import com.fawvw.cnsviews.loading.LoadingView; import com.fawvw.cnsviews.scrollbar.VerticalRecyclerViewScrollbar; import com.fawvw.cnsviews.search.SearchView; import com.fawvw.cnsviews.tab.TabLayout; import org.greenrobot.eventbus.EventBus; import org.greenrobot.eventbus.Subscribe; import org.greenrobot.eventbus.ThreadMode; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * @author caoyifan */ public class ContactsFragment extends Fragment implements View.OnClickListener, ContactAdapter.ShowContactDetailsListener , FavoriteContactAdapter.OnAddFavorListener, ContactsDetailsAdapter.ContactItemDetailsListener, DownloadContactCallBack, IDataClearListener , HidePopupListener { private static final String TAG = ConstantUtil.TAG_PREFIX + "ContactsFragment"; /** * 收藏的tab位置 */ private static final int FAVORITE_POSITION = 0; /** * 收藏的联系人显示列数 */ private static final int FAVORITE_SPAN_COUNT = 3; /** * 展示收藏联系人页面 */ private static final int VIEW_TYPE_FAVORITE = 0; /** * 展示全部联系人页面 */ private static final int VIEW_TYPE_ALL = 1; private View mView; private int pageJump; private ImageView mContactItemDetailIconAvatar, mContactItemDetailAvatar; private TextView mDetailsName,mSearchNotContact; private ImageView mCircleAvatarImageBg; private RecyclerView mFavorContactRecycle, mContactsDetailRecycler; private FastScrollRecyclerView mContactRecycle = null; private SearchView mSearchInput; private RelativeLayout mLayoutHeadPart, mDeleteEntry, mDeleteAll, mContactsSearch,mSearchBack,mDetailsReturn; private FrameLayout mLayoutContentPart; private ContactAdapter mContactAdapter; private FavoriteContactAdapter mFavorContactAdapter; private LinearLayout mContactsDetails; private boolean isDelete = true; private final List<ContactsBean> mDataList = new ArrayList<>(); private ContactListViewModel mContactListViewModel; private PinyinComparatorUtil mPinyinComparatorUtil; private ContactsDetailsAdapter mContactsDetailsAdapter; private BluetoothPbapClient mBluetoothPBAPClient; private ContactsDao mContactsDao; public BTCallDataBase mBtCallDataBase; private LoadingView mLoaderProgressBar; private int mLoadMark; private TelecomActivity mTelecomActivity; private DialerApplication mDialerApplication; private ItemTouchHelper mItemTouchHelper; private TabLayout mContactTabLayout; private ArrayList<TabLayout.TabData> contactsTabData = new ArrayList<>(); private int contactsTabPosition; private RelativeLayout mContactsRelativeLayout; private CursorDD mCursorDD; private GenericPopupDialog.Builder mGenericPopupDialog; private GenericPopupDialog mFavoriteContactBuild; private boolean isClearContactsData = true; public void setIsClearContactsData(boolean isClearContactsData) { this.isClearContactsData = isClearContactsData; } // 空联系人 private GenericPopupDialog mEmptyContactDialog; // PBAP client 未授权/无已连接设备 private GenericPopupDialog mPbapClientDisableDialog; private Runnable mShowEmptyContactDialogRunnable = this::showEmptyContactDialog; public void setContactsTabPosition(int contactsTabPosition) { this.contactsTabPosition = contactsTabPosition; } public RelativeLayout getSearchBack() { return mSearchBack; } public ContactsFragment() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.e(TAG, "onCreate: "); // if (!EventBus.getDefault().isRegistered(this)) { // EventBus.getDefault().register(this); // } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Log.e(TAG, "onCreateView: "); if (!EventBus.getDefault().isRegistered(this)) { EventBus.getDefault().register(this); } mView = inflater.inflate(R.layout.fragment_contact, container, false); initViewMode(); initView(); initTab(); return mView; } private Handler mHandler = new Handler(Looper.getMainLooper()) { @Override public void handleMessage(Message msg) { switch (msg.what) { case 1: // 拼音搜索完成，更新UI List<ContactsBean> filterDateList = (List<ContactsBean>) msg.obj; mContactAdapter.notifyDataChanged(filterDateList); break; } } }; private void initTab() { //联系人搜索输入监听 mSearchInput.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int