我是刚接触Android Studio的人，我想要在家庭活动（Activity_Main）顶部创建搜索对话框 请参阅图片LinK 1 => “ https://drive.google.com/drive/folders/1y4A7sWXBWIDM7Mf4BoDp7ak2e3cgb4Qu” 并在使用时单击搜索按钮或搜索项目建议，将数据返回到家庭活动（Activity_Main）并显示在mmTextViewItemSearched上选择的文本用户类型或项目 请参阅图片链接2 =>“ https://drive.google.com/drive/folders/1y4A7sWXBWIDM7Mf4BoDp7ak2e3cgb4Qu” 塞住。
这是我所拥有的，搜索视图上的用户类型在列表视图中显示关于家庭活动（Activity_Main）的数据建议 请参阅图片链接 3 =>“ https://drive.google.com/drive/folders/1y4A7sWXBWIDM7Mf4BoDp7ak2e3cgb4Qu”
下面是我的代码文件包含的内容。
1）activity_main.XML
2）Activity_Main.JAVA
3）User_Detail.JAVA
4）Adapter.JAVA
1） activity_main.XML
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".Activity_Main">
<android.support.design.widget.AppBarLayout
android:id="@+id/xxAppBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:collapseIcon="@drawable/icon_search_collapse"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<TextView
android:id="@+id/mmTextViewHome"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/xxAppBarLayout"
android:layout_centerInParent="true"
android:layout_marginTop="16dp"
android:gravity="left"
android:text="Home"
android:textAllCaps="false"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Medium"
android:textSize="16sp"
android:typeface="serif"
android:layout_marginHorizontal="32dp"
/>
<TextView
android:id="@+id/mmTextViewItemSearched"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/mmTextViewHome"
android:layout_centerInParent="true"
android:layout_marginTop="8dp"
android:gravity="left"
android:text="TextView Display Item Searched By User"
android:textAllCaps="false"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Medium"
android:textSize="16sp"
android:typeface="serif"
android:layout_marginHorizontal="32dp"
android:layout_marginBottom="8dp"
/>
<ProgressBar
android:id="@+id/mmProgressBar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_alignParentBottom="true"
/>
<android.support.v7.widget.RecyclerView
android:id="@+id/mmRecyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/mmTextViewItemSearched"
android:layout_marginHorizontal="16dp" />
2） Activity_Main.JAVA
public class Activity_Main extends AppCompatActivity {
private Toolbar mToolbar;
private TextView mmTextViewHTML;
private int mmLatestRowNumber = 0;
private String mmSearchxKey = "";
private boolean mmSearching_TF = false;
private RecyclerView mmRecyclerView;
private GridLayoutManager mmGridLayoutManager;
private List<User_Detail> mmUser_Details;
private List<User_Detail> mmDataBase_User_Details;
private Adapter mmAdapter;
private ProgressBar mmProgressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// initialisation of variable
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
// DataBase which store UserDetail OnLine Or OffLine
F_DataBaseUser_Detai();
mmUser_Details = new ArrayList<>();
mmProgressBar = findViewById(R.id.mmProgressBar);
mmRecyclerView = findViewById(R.id.mmRecyclerView);
mmGridLayoutManager = new GridLayoutManager(this, 1);
mmRecyclerView.setLayoutManager(mmGridLayoutManager);
mmRecyclerView.setHasFixedSize(true);
mmAdapter = new Adapter(mmUser_Details, this);
mmRecyclerView.setAdapter(mmAdapter);
mmRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
if (mmGridLayoutManager.findLastCompletelyVisibleItemPosition() == mmUser_Details.size() - 1 && mmLatestRowNumber < mmUser_Details.size()) {
mmLatestRowNumber = mmUser_Details.size();
mmProgressBar.setVisibility(View.VISIBLE);
F_FetchUser_Detai(mmLatestRowNumber,mmSearchxKey);
}
}
});
F_FetchUser_Detai(mmLatestRowNumber,mmSearchxKey);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_search, menu);
MenuItem xxSearchMenuItem = menu.findItem(R.id.action_search);
SearchView xxSearchView = (SearchView) xxSearchMenuItem.getActionView();
MenuItemCompat.setOnActionExpandListener(xxSearchMenuItem, new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// Start Searching mmListShopping OR mmListSeeking
// NOT mmListHome => Have Fiw thing to show them as Intro
//Log.d("TAG", "onMenuItemAction_Expand");
return true;
}
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// Close Searching mmListShopping OR mmListSeeking
// NOT mmListHome => Have Fiw thing to show them as Intro
if(mmSearching_TF) {
mmSearching_TF = !mmSearching_TF;
mmLatestRowNumber = 0;
mmSearchxKey = "";
mmUser_Details.clear();
mmProgressBar.setVisibility(View.VISIBLE);
F_FetchUser_Detai(mmLatestRowNumber,mmSearchxKey);
}
return true;
}
});
xxSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String s) {
return false;
}
@Override
public boolean onQueryTextChange(String xxString){
if(xxString.length() >= 3) {
mmSearching_TF = !mmSearching_TF;
mmLatestRowNumber = 0;
mmSearchxKey = xxString;
mmUser_Details.clear();
mmProgressBar.setVisibility(View.VISIBLE);
F_FetchUser_Detai(mmLatestRowNumber,mmSearchxKey);
}
return false;
}
});
return true;
}
private void F_FetchUser_Detai(int xxUser_ID, String xxUser_Name){
int xxLimt = xxUser_ID + 15;
Toast.makeText(this, "Load Data Online or OffLine DataBase", Toast.LENGTH_SHORT).show();
for (int xxIndex = xxUser_ID; xxIndex <= mmDataBase_User_Details.size()-1; xxIndex++) {
// To Avoid IndexOutOfBoundsException ERROR mmDataBase_User_Details.size()-1
// name match condition.
// here we are looking for name
if (mmDataBase_User_Details.get(xxIndex).getUser_Name().toLowerCase().contains(xxUser_Name.toLowerCase())) {
mmUser_Details.add(mmDataBase_User_Details.get(xxIndex));
Log.d("TAG", "xxUser_ID = : " + xxUser_ID);
if (xxIndex >= xxLimt) {
mmProgressBar.setVisibility(View.GONE);
mmAdapter.notifyDataSetChanged();
break;
}
}
}
mmProgressBar.setVisibility(View.GONE);
mmAdapter.notifyDataSetChanged();
}
private void F_DataBaseUser_Detai() {
mmDataBase_User_Details = new ArrayList<>();
// A User
mmDataBase_User_Details.add(F_New_User_Detail(1,"aaaa user 1"));
mmDataBase_User_Details.add(F_New_User_Detail(2,"aaaa user 2"));
mmDataBase_User_Details.add(F_New_User_Detail(3,"aaaa user 3"));
mmDataBase_User_Details.add(F_New_User_Detail(4,"aaaa user 4"));
mmDataBase_User_Details.add(F_New_User_Detail(5,"aaaa user 5"));
mmDataBase_User_Details.add(F_New_User_Detail(6,"aaaa user 6"));
mmDataBase_User_Details.add(F_New_User_Detail(7,"aaaa user 7"));
mmDataBase_User_Details.add(F_New_User_Detail(8,"aaaa user 8"));
mmDataBase_User_Details.add(F_New_User_Detail(9,"aaaa user 9"));
mmDataBase_User_Details.add(F_New_User_Detail(10,"aaaa user 10"));
// B User
mmDataBase_User_Details.add(F_New_User_Detail(11,"bbbb user 1"));
mmDataBase_User_Details.add(F_New_User_Detail(12,"bbbb user 2"));
mmDataBase_User_Details.add(F_New_User_Detail(13,"bbbb user 3"));
mmDataBase_User_Details.add(F_New_User_Detail(14,"bbbb user 4"));
mmDataBase_User_Details.add(F_New_User_Detail(15,"bbbb user 5"));
mmDataBase_User_Details.add(F_New_User_Detail(16,"bbbb user 6"));
mmDataBase_User_Details.add(F_New_User_Detail(17,"bbbb user 7"));
mmDataBase_User_Details.add(F_New_User_Detail(18,"bbbb user 8"));
mmDataBase_User_Details.add(F_New_User_Detail(19,"bbbb user 9"));
mmDataBase_User_Details.add(F_New_User_Detail(20,"bbbb user 10"));
// C User
mmDataBase_User_Details.add(F_New_User_Detail(21,"cccc user 1"));
mmDataBase_User_Details.add(F_New_User_Detail(22,"cccc user 2"));
mmDataBase_User_Details.add(F_New_User_Detail(23,"cccc user 3"));
mmDataBase_User_Details.add(F_New_User_Detail(24,"cccc user 4"));
mmDataBase_User_Details.add(F_New_User_Detail(25,"cccc user 5"));
mmDataBase_User_Details.add(F_New_User_Detail(26,"cccc user 6"));
mmDataBase_User_Details.add(F_New_User_Detail(27,"cccc user 7"));
mmDataBase_User_Details.add(F_New_User_Detail(28,"cccc user 8"));
mmDataBase_User_Details.add(F_New_User_Detail(29,"cccc user 9"));
mmDataBase_User_Details.add(F_New_User_Detail(30,"cccc user 10"));
// D User
mmDataBase_User_Details.add(F_New_User_Detail(31,"dddd user 1"));
mmDataBase_User_Details.add(F_New_User_Detail(32,"dddd user 2"));
mmDataBase_User_Details.add(F_New_User_Detail(33,"dddd user 3"));
mmDataBase_User_Details.add(F_New_User_Detail(34,"dddd user 4"));
mmDataBase_User_Details.add(F_New_User_Detail(35,"dddd user 5"));
mmDataBase_User_Details.add(F_New_User_Detail(36,"dddd user 6"));
mmDataBase_User_Details.add(F_New_User_Detail(37,"dddd user 7"));
mmDataBase_User_Details.add(F_New_User_Detail(38,"dddd user 8"));
mmDataBase_User_Details.add(F_New_User_Detail(39,"dddd user 9"));
mmDataBase_User_Details.add(F_New_User_Detail(40,"dddd user 10"));
// E User
mmDataBase_User_Details.add(F_New_User_Detail(41,"eeee user 1"));
mmDataBase_User_Details.add(F_New_User_Detail(42,"eeee user 2"));
mmDataBase_User_Details.add(F_New_User_Detail(43,"eeee user 3"));
mmDataBase_User_Details.add(F_New_User_Detail(44,"eeee user 4"));
mmDataBase_User_Details.add(F_New_User_Detail(45,"eeee user 5"));
mmDataBase_User_Details.add(F_New_User_Detail(46,"eeee user 6"));
mmDataBase_User_Details.add(F_New_User_Detail(47,"eeee user 7"));
mmDataBase_User_Details.add(F_New_User_Detail(48,"eeee user 8"));
mmDataBase_User_Details.add(F_New_User_Detail(49,"eeee user 9"));
mmDataBase_User_Details.add(F_New_User_Detail(50,"eeee user 10"));
// F User
mmDataBase_User_Details.add(F_New_User_Detail(51,"ffff user 1"));
mmDataBase_User_Details.add(F_New_User_Detail(52,"ffff user 2"));
mmDataBase_User_Details.add(F_New_User_Detail(53,"ffff user 3"));
mmDataBase_User_Details.add(F_New_User_Detail(54,"ffff user 4"));
mmDataBase_User_Details.add(F_New_User_Detail(55,"ffff user 5"));
mmDataBase_User_Details.add(F_New_User_Detail(56,"ffff user 6"));
mmDataBase_User_Details.add(F_New_User_Detail(57,"ffff user 7"));
mmDataBase_User_Details.add(F_New_User_Detail(58,"ffff user 8"));
mmDataBase_User_Details.add(F_New_User_Detail(59,"ffff user 9"));
mmDataBase_User_Details.add(F_New_User_Detail(60,"ffff user 10"));
}
private User_Detail F_New_User_Detail(int xxUser_ID,String xxUser_Name){
User_Detail xxUser_Detail = new User_Detail();
xxUser_Detail.setUser_ID(xxUser_ID);
xxUser_Detail.setUser_Name(xxUser_Name);
return xxUser_Detail;
}
}
3） User_Detail.JAVA
public class Adapter extends RecyclerView.Adapter<Adapter.CcViewHolder> {
// Initialization of object gone use in Adapter Class
private List<User_Detail> mmUser_Details;
private Context mmContext;
public Adapter(List<User_Detail> mmUser_Details, Context mmContext) {
this.mmUser_Details = mmUser_Details;
this.mmContext = mmContext;
}
@NonNull
@Override
public CcViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
View search_view_suggestion_row = LayoutInflater.from(parent.getContext()).inflate(R.layout.search_view_suggestion_row,parent,false);
return new CcViewHolder(search_view_suggestion_row);
}
@Override
public void onBindViewHolder(@NonNull CcViewHolder xxCcViewHolder, int xxPosition) {
String xxUserID = " User ID : "+ mmUser_Details.get(xxPosition).getUser_ID();
String xxUserName = " User Name : " + mmUser_Details.get(xxPosition).getUser_Name();
xxCcViewHolder.mmKey.setText(Html.fromHtml(getHTMLString(xxUserID,"blue",xxUserName.toLowerCase(),"red")));
}
@Override
public int getItemCount() {
return mmUser_Details.size();
}
public static class CcViewHolder extends RecyclerView.ViewHolder{
// Initialization of object gone use in CcViewHolder Class
TextView mmKey;
public CcViewHolder(@NonNull View itemView) {
super(itemView);
mmKey = itemView.findViewById(R.id.mmKey);
}
}
private String getHTMLString(String xxUserID, String xxColorUserID, String xxUserName, String xxColorUserName) {
// large , medium, small
String xxNewHTMLString = "<u><small><font color=\""+ xxColorUserID +"\">" + xxUserID + "</font></small></u>" +
"<br/> <small> <font color=\"" + xxColorUserName + "\">" + xxUserName + "</font> </small>";
return xxNewHTMLString;
}
}
4） Adapter.JAVA
package com.robertpro.diliappv1;
public class User_Detail {
private int user_ID;
private String user_Name;
public int getUser_ID() {
return user_ID;
}
public void setUser_ID(int user_ID) {
this.user_ID = user_ID;
}
public String getUser_Name() {
return user_Name;
}
public void setUser_Name(String user_Name) {
this.user_Name = user_Name;
}
}