Android應用-猜數字小遊戲
描述:
猜數字遊戲包含“猜數”、“排行榜”和“設定” 3個模組。
1)“猜數”模組:隨機生成一定範圍內的一個整數,使用者可以輸入自己的猜想數字,程式進行判斷並給出“猜大”、“猜小”或“正確”的3種提示
2)“排行榜”模組:根據使用者猜對數字的次數進行排名顯示。
3)“設定”模組:在這個模組,使用者可以設定自己的使用者名稱,也可以選擇是否使用“預設姓名”進行後面的每一次猜數遊戲
如果使用,後面則直接進行遊戲,
如果不使用,後面的每次遊戲結束後程序會提示要輸入使用者名稱,以便記錄遊戲歷史,並在“排行榜”模組顯示。
在“設定”模組,使用者還可以選擇接下來的要進行的猜數遊戲的猜數範圍,本次給出1-100,1-1000,1-10000三種範圍,大家後期可以根據需要修改調整。
無預設姓名猜對時:
二、整個專案的結構分析:
先放一張整個Project目錄結構:
res下的圖片素材:
接下來,逐一對每個模組實現步驟進行講解!
【資料庫】
新建一個輔助類MyHelper類繼承SQLiteOpenHelper類,並實現它的onCreate方法和onUpgrade方法。
package com.example.mygame;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite. SQLiteOpenHelper;
public class MyHelper extends SQLiteOpenHelper {
public MyHelper(Context context,String name,SQLiteDatabase.CursorFactory factory,int version){
super(context,name,factory,version);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table ordertb(_id integer primary key " +"autoincrement," +
"name string not null,count integer not null,range integer not null)");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
【下方導航欄的實現】
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_alignParentLeft="true"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
android:background="#E8EEF5"
android:baselineAligned="false"
tools:ignore="Orientation"
>
<!--猜數-->
<LinearLayout
android:id="@+id/llay_guess"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:background="#E8EEF5"
android:orientation="vertical">
<ImageView
android:id="@+id/img_guess"
android:layout_width="40dp"
android:layout_height="40dp"
android:src="@drawable/game_on"/>
<TextView
android:id="@+id/txt_guess"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/txt_guess"
android:textSize="20dp"
android:textStyle="bold"
android:textColor="@color/color_txt_pressed"/>
</LinearLayout>
<LinearLayout
android:layout_width="2dp"
android:layout_height="match_parent"
android:divider="@color/color_txt_pressed"
android:showDividers="end">
</LinearLayout>
<!--排行榜-->
<LinearLayout
android:id="@+id/llay_order"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical"
android:gravity="center">
<ImageView
android:id="@+id/img_order"
android:layout_width="40dp"
android:layout_height="40dp"
android:src="@drawable/rank_off"
android:layout_gravity="center_horizontal"/>
<TextView
android:id="@+id/txt_order"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/txt_order"
android:textSize="20dp"
android:textStyle="bold"
android:textColor="@color/color_txt_normal"/>
</LinearLayout>
<!--設定-->
<LinearLayout
android:id="@+id/llay_setting"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical"
android:gravity="center">
<ImageView
android:id="@+id/img_setting"
android:layout_width="40dp"
android:layout_height="40dp"
android:src="@drawable/setting_off"/>
<TextView
android:id="@+id/txt_setting"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/txt_setting"
android:textSize="20dp"
android:textStyle="bold"
android:textColor="@color/color_txt_normal"/>
</LinearLayout>
</LinearLayout>
<FrameLayout
android:id="@+id/fragment_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/linearLayout"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
</RelativeLayout>
佈局中涉及的“strings.xml”檔案如下:
<string name="txt_guess">猜數</string>
<string name="txt_order">排行榜</string>
<string name="txt_setting">設定</string>
佈局中涉及的“colors.xml”檔案如下:
<color name="color_txt_normal">#737373</color>
<color name="color_txt_pressed">#d4257b</color>
在MainActivity中實現導航邏輯之前,先搭個基本頁面框架:
新建GuessFragment(猜數字頁)、OrderFragment(積分排行榜頁)和SettingFragment(設定頁)3個類,以及對應的佈局檔案“fragment_guess.xml”、“fragment_order.xml”和“fragment_setting.xml”。
在MainActivity中的程式碼如下:
package com.example.mygame;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private LinearLayout ILay_guess,ILay_order,ILay_setting;
private ImageView img_guess,img_order,img_setting;
private TextView txt_guess,txt_order,txt_setting;
private Fragment fm_guess,fm_order,fm_setting;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
setDefaultFragment();
setOnClickLisener();
}
private void initView(){
ILay_guess = findViewById(R.id.llay_guess);
ILay_order = findViewById(R.id.llay_order);
ILay_setting = findViewById(R.id.llay_setting);
img_guess = findViewById(R.id.img_guess);
img_order = findViewById(R.id.img_order);
img_setting = findViewById(R.id.img_setting);
txt_guess = findViewById(R.id.txt_guess);
txt_order = findViewById(R.id.txt_order);
txt_setting = findViewById(R.id.txt_setting);
}
private void setDefaultFragment(){
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
fm_guess = new GuessFragment();
transaction.replace(R.id.fragment_content,fm_guess,"GUESS");
transaction.commit();
}
private void setOnClickLisener(){
ILay_guess.setOnClickListener(new LinearLayoutOnClickLisener());
ILay_order.setOnClickListener(new LinearLayoutOnClickLisener());
ILay_setting.setOnClickListener(new LinearLayoutOnClickLisener());
}
private class LinearLayoutOnClickLisener implements View.OnClickListener{
@Override
public void onClick(View v) {
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
resetLinearLayout();
switch (v.getId()){
case R.id.llay_guess:
if (fm_guess == null){
fm_guess = new GuessFragment();
}
img_guess.setImageResource(R.drawable.game_on);
txt_guess.setTextColor(ContextCompat.getColor(MainActivity.this,R.color.color_txt_pressed));
transaction.replace(R.id.fragment_content,fm_guess,"GUESS");
break;
case R.id.llay_order:
if (fm_order == null){
fm_order = new OrderFragment();
}
img_order.setImageResource(R.drawable.rank_on);
txt_order.setTextColor(ContextCompat.getColor(MainActivity.this,R.color.color_txt_pressed));
transaction.replace(R.id.fragment_content,fm_order,"ORDER");
break;
case R.id.llay_setting:
if (fm_setting == null){
fm_setting = new SettingFragment();
}
img_setting.setImageResource(R.drawable.setting_on);
txt_setting.setTextColor(ContextCompat.getColor(MainActivity.this,R.color.color_txt_pressed));
transaction.replace(R.id.fragment_content,fm_setting,"SETTING");
break;
}
transaction.commit();
}
}
private void resetLinearLayout(){
img_guess.setImageResource(R.drawable.game_off);
img_order.setImageResource(R.drawable.rank_off);
img_setting.setImageResource(R.drawable.setting_off);
txt_guess.setTextColor(ContextCompat.getColor(MainActivity.this,R.color.color_txt_normal));
txt_order.setTextColor(ContextCompat.getColor(MainActivity.this,R.color.color_txt_normal));
txt_setting.setTextColor(ContextCompat.getColor(MainActivity.this,R.color.color_txt_normal));
}
}
【“設定”模組的實現】
在對應的佈局檔案“fragment_setting.xml”中,程式碼佈局如下:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
tools:context=".SettingFragment"
android:orientation="vertical">
<TextView
android:id="@+id/txt_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/txt_name"
android:textSize="22dp"/>
<EditText
android:id="@+id/edit_defaultName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:padding="8dp"
android:hint="@string/edit_name"
android:textSize="22dp" />
<CheckBox
android:id="@+id/chb_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="@string/chb_useDefaultName"
android:textSize="22dp"
/>
<TextView
android:id="@+id/txt_defaultRange"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="@string/txt_defaultRange"
android:textSize="22dp"/>
<Spinner
android:id="@+id/spinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="@array/range_array"
android:layout_marginTop="10dp"/>
<Button
android:id="@+id/btn_save"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="@string/btn_setting"
android:textSize="22dp"/>
</LinearLayout>
佈局檔案中涉及的“strings.xml”檔案內容如下:
<string name="txt_name">請輸入預設姓名:</string>
<string name="chb_useDefaultName">使用預設姓名:</string>
<string name="txt_defaultRange">預設範圍:</string>
<string name="btn_setting">儲存設定</string>
<string name="edit_name">預設姓名</string>
<string-array name="range_array">
<item>100</item>
<item>1000</item>
<item>10000</item>
</string-array>
該模組的邏輯實現程式碼在“SettingFragment”類中實現:
package com.example.mygame;
import android.content.Context;
import android.content.SharedPreferences;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
public class SettingFragment extends Fragment{
private EditText edit_name;
private Button btn_save;
private CheckBox chb_defaultName;
private Spinner spinner;
private Context context;
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState){
View view = inflater.inflate(R.layout.fragment_setting,container,false);
context = view.getContext();
initView(view);
btn_save.setOnClickListener(new ButtonOnClickLisener());
return view;
}
private void initView(View view){
edit_name = view.findViewById(R.id.edit_defaultName);
btn_save = view.findViewById(R.id.btn_save);
chb_defaultName = view.findViewById(R.id.chb_name);
spinner = view.findViewById(R.id.spinner);
}
public class ButtonOnClickLisener implements View.OnClickListener{
@Override
public void onClick(View v) {
SharedPreferences sharedPreferences = context.getSharedPreferences("Info",Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
int defaultRange = Integer.valueOf(spinner.getSelectedItem().toString());
editor.putInt("range",defaultRange);
if (chb_defaultName.isChecked()){
String defaultName = edit_name.getText().toString();
if (defaultName.isEmpty()){
Toast.makeText(context,"請輸入預設姓名!",Toast.LENGTH_SHORT).show();
return;
}
editor.putString("name",defaultName);
}
else {
editor.remove("name");
}
if (editor.commit()){
Toast.makeText(context,"儲存成功!",Toast.LENGTH_SHORT).show();
}
}
}
}
完成可執行run,在模擬器跑一下。
【“猜數”模組的實現】
猜數模組佈局檔案"fragment_guess.xml"內容如下:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
tools:context=".GuessFragment"
android:background="#ffffff"
android:orientation="vertical">
<TextView
android:id="@+id/txt_range"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:textSize="22dp"/>
<EditText
android:id="@+id/edit_num"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:layout_below="@id/txt_range"
android:padding="8dp"
android:inputType="numberSigned"
android:textSize="22dp"/>
<Button
android:id="@+id/btn_submit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:layout_below="@id/edit_num"
android:textSize="22dp"/>
<TextView
android:id="@+id/txt_compare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:textSize="22dp"
android:layout_below="@id/btn_submit"
android:layout_centerHorizontal="true"/>
<ImageView
android:id="@+id/img_broad"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_margin="10dp"
android:layout_toStartOf="@id/txt_compare"
android:layout_toLeftOf="@id/txt_compare"
android:layout_below="@id/btn_submit"/>
<TextView
android:id="@+id/txt_count"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:textSize="22dp"
android:layout_below="@id/txt_compare"
android:layout_alignLeft="@id/txt_compare"
android:layout_alignStart="@id/txt_compare"
/>
<ImageView
android:id="@+id/img_bingo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/img_broad"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:src="@drawable/bingo"/>
</RelativeLayout>
在GuessFragment類中實現猜數判斷邏輯:
package com.example.mygame;
import android.content.ContentValues;
import android.content.Context;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Random;
public class GuessFragment extends Fragment {
private int count,rndNum;
private EditText edit_num;
private TextView txt_range,txt_compare,txt_count;
private Button btn_submit;
private ImageView img_broad,img_bingo;
private boolean flag;
private String name;
public int range = 0;
private Context context;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState){
View view = inflater.inflate(R.layout.fragment_guess,container,false);
context = view.getContext();
initView(view);
initData();
btn_submit.setOnClickListener(new ButtonOnClickLisener());
return view;
}
private void initView(View view){
edit_num = view.findViewById(R.id.edit_num);
txt_range = view.findViewById(R.id.txt_range);
txt_compare = view.findViewById(R.id.txt_compare);
txt_count = view.findViewById(R.id.txt_count);
btn_submit = view.findViewById(R.id.btn_submit);
img_broad = view.findViewById(R.id.img_broad);
img_bingo = view.findViewById(R.id.img_bingo);
}
public void initData(){
SharedPreferences sharedPreferences = context.getSharedPreferences("Info",Context.MODE_PRIVATE);
name = sharedPreferences.getString("name","");
range = sharedPreferences.getInt("range",100);
Random mRandom = new Random();
rndNum = mRandom.nextInt(range)+1;
txt_range.setText("請輸入1-"+range+"之間的整數");
txt_count.setText("");
txt_compare.setText("");
img_broad.setVisibility(View.INVISIBLE);
img_bingo.setVisibility(View.INVISIBLE);
btn_submit.setText("提交");
flag = true;
count = 0;
}
private class ButtonOnClickLisener implements View.OnClickListener{
@Override
public void onClick(View v) {
if (flag){
String str_num = edit_num.getText().toString();
if (str_num.isEmpty()){
Toast.makeText(context,"請輸入數字!",Toast.LENGTH_SHORT).show();
return;
}
edit_num.setText("");
int numInput = Integer.valueOf(str_num);
if (numInput<1 || numInput > range){
Toast.makeText(context,"請輸入範圍內的數字!",Toast.LENGTH_SHORT).show();
return;
}
count += 1;
img_broad.setVisibility(View.VISIBLE);
txt_count.setText("猜數次數:"+count);
if (numInput > rndNum){
txt_compare.setText("輸入的"+str_num+"太大了!");
}else if(numInput < rndNum){
txt_compare.setText("輸入的"+str_num+"太小了!");
}else{
txt_compare.setText("恭喜你猜對啦!正確答案是:"+rndNum+"!");
img_bingo.setVisibility(View.VISIBLE);
flag = false;
btn_submit.setText("再猜一次");
if (name.isEmpty()){
final CustomDialog dialog = new CustomDialog(context,R.style.MyDialog);
dialog.show();
Button btn_confirm = dialog.findViewById(R.id.btn_confirm);
final EditText edit_name = dialog.findViewById(R.id.edit_inputName);
btn_confirm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
name = edit_name.getText().toString();
if (!name.isEmpty()){
insertData();
dialog.dismiss();
}
}
});
} else {
insertData();
}
}
}else {
initData();
}
}
}
private void insertData(){
MyHelper helper = new MyHelper(context,"Guess.db",null,1);
SQLiteDatabase db = helper.getWritableDatabase();
ContentValues values = new ContentValues();
values.put("name",name);
values.put("count",count);
values.put("range",range);
db.insert("ordertb",null,values);
db.close();
}
}
可以發現,在GuessFragment類中,引入了CustomDialog類,這是自定義的對話方塊,用於前面基本構思說的,使用者在進行猜數遊戲時,如果在設定頁中,不選擇使用預設姓名的話,遊戲結束會要求使用者輸入使用者名稱。
CustomDialog自定義對話方塊的具體實現如下:
佈局檔案“alertdialog_input.xml”:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:background="#80BCF7"
android:padding="20dp">
<TextView
android:id="@+id/txt_info"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="5dp"
android:gravity="center"
android:text="@string/txt_dialog_info"
android:textSize="22dp"
android:textColor="#ffffff"
/>
<EditText
android:id="@+id/edit_inputName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20dp"
android:padding="8dp"/>
<Button
android:id="@+id/btn_confirm"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/btn_dialog_confirm"
android:textSize="20dp"/>
</LinearLayout>
佈局檔案中涉及到的“strings.xml”檔案內容如下:
<string name="txt_dialog_info">請輸入姓名</string>
<string name="btn_dialog_confirm">確定</string>
CustomDialog類實現程式碼:
package com.example.mygame;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.WindowManager;
public class CustomDialog extends Dialog {
private Context context;
public CustomDialog(Context context,int themeResId) {
super(context,themeResId);
this.context = context;
}
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
this.setContentView(R.layout.alertdialog_input);
}
@Override
public void show(){
super.show();
// 設定對話方塊寬度、對齊方式等
WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
layoutParams.gravity = Gravity.CENTER;
layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
layoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
// getWindow().getDecorView().setPadding(0,0,0,0);
getWindow().setAttributes(layoutParams);
}
}
【“排行榜”模組的實現】
該模組佈局檔案“fragment_order.xml””內容如下:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".OrderFragment">
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<android.support.v4.view.PagerTabStrip
android:id="@+id/tabstrip"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.v4.view.ViewPager>
</RelativeLayout>
新建“viewpager_tab_hundred.xml”佈局檔案(用於在排行榜頁中顯示排名,也可以多建幾個同樣的檔案,在排行榜實現分頁顯示不同範圍的猜數遊戲有不同的排行榜,這裡只在一頁顯示全部):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@+id/lv_hundred"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</ListView>
</LinearLayout>
OrderFragment類邏輯程式碼實現:
package com.example.mygame;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.PagerTabStrip;
import android.support.v4.view.ViewPager;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.util.ArrayList;
public class OrderFragment extends Fragment {
private ListView lv_hunderd,lv_thousand,lv_tenthousand;
private ViewPager pager;
private Context context;
private PagerTabStrip tabStrip;
private ArrayList<View> viewContainer;
private ArrayList<String> titleContainer;
private ArrayList<String>[] data; //用於為每個pager的ListView準備資料
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState){
View view = inflater.inflate(R.layout.fragment_order,container,false);
context = view.getContext();
initView(view);
pagersetAdapter();
return view;
}
private void initData(){
MyHelper helper = new MyHelper(context,"Guess.db",null,1);
SQLiteDatabase db = helper.getReadableDatabase();
int[] ranges = {100,1000,1000};
data = new ArrayList[3];
data[0] = new ArrayList<>();
data[1] = new ArrayList<>();
data[2] = new ArrayList<>();
for (int i = 0; i < 3; i++) {
Cursor c = db.query("ordertb",null,null,null
,null,null,"count");
if (c.getCount()>0){
while (c.moveToNext()){
data[i].add("姓名:"+c.getString(c.getColumnIndex("name"))+"\t\t花費次數: "+
c.getString(c.getColumnIndex("count")));
}
}else {
Log.i("info","資料庫無資料");
}
c.close();
}
db.close();
}
private void initListView(){
ArrayAdapter<String> adapter_hundred = new ArrayAdapter<String>(context,android.R.layout.simple_expandable_list_item_1,data[0]);
lv_hunderd.setAdapter(adapter_hundred);
ArrayAdapter<String> adapter_thousand = new ArrayAdapter<String>(context,android.R.layout.simple_expandable_list_item_1,data[1]);
lv_hunderd.setAdapter(adapter_thousand);
ArrayAdapter<String> adapter_tenthousand = new ArrayAdapter<String>(context,android.R.layout.simple_expandable_list_item_1,data[2]);
lv_hunderd.setAdapter(adapter_tenthousand);
}
private void initView(View view){
pager = view.findViewById(R.id.viewpager);
tabStrip = view.findViewById(R.id.tabstrip);
tabStrip.setDrawFullUnderline(false);
tabStrip.setBackgroundColor(Color.parseColor("#ccccff"));
tabStrip.setTabIndicatorColor(Color.parseColor("#6666ff"));
LayoutInflater inflater = getActivity().getLayoutInflater();
View view_tab1 = inflater.inflate(R.layout.viewpager_tab_hundred,null);
// View view_tab2 = inflater.inflate(R.layout.viewpager_tab_thousand,null);
// View view_tab3 = inflater.inflate(R.layout.viewpager_tab_tenthousand,null);
lv_hunderd = view_tab1.findViewById(R.id.lv_hundred);
// lv_thousand = view_tab2.findViewById(R.id.lv_thousand);
// lv_tenthousand = view_tab3.findViewById(R.id.lv_tenthousand);
initData();
initListView();
// 新增到ViewPager
viewContainer = new ArrayList<>();
viewContainer.add(view_tab1);
// viewContainer.add(view_tab2);
// viewContainer.add(view_tab3);
// 設定標題
titleContainer = new ArrayList<>();
titleContainer.add("排行榜");
// titleContainer.add("1-1000排行榜");
// titleContainer.add("1-10000排行榜");
}
private void pagersetAdapter(){
pager.setAdapter(new PagerAdapter() {
@Override
public int getCount() {
return viewContainer.size();
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return view == object;
}
@Override
public void destroyItem(ViewGroup container,int position,Object object){
((ViewPager)container).removeView(viewContainer.get(position));
}
@Override
public Object instantiateItem(ViewGroup container,int position){
((ViewPager)container).addView(viewContainer.get(position));
return viewContainer.get(position);
}
@Override
public int getItemPosition(Object object){
return super.getItemPosition(object);
}
@Override
public CharSequence getPageTitle(int position){
return titleContainer.get(position);
}
});
}
}
到這裡,猜數頁,猜數頁填寫使用者名稱的對話方塊,排行榜,設定頁都已經實現了。整個工程也基本完結了。
作者:唐玉金
原文地址