7.28
menu2代码
package com.example.month7day26ap;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import java.util.List;
public class Menu2 extends AppCompatActivity {
private TabLayout menu2TabLayout;
private RadioGroup menu2RadioGroup;
private RadioButton menu2RadioButtonRecommend;
private RadioButton menu2RadioButtonPhone;
private RadioButton menu2RadioButtonAuto;
private RadioButton menu2RadioButtonComputer;
private RadioButton menu2RadioButtonClassify;
private ViewPager menu2ViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu2);
menu2TabLayout = (TabLayout) findViewById(R.id.menu2_tabLayout);
menu2RadioGroup = (RadioGroup) findViewById(R.id.menu2_radioGroup);
menu2RadioButtonRecommend = (RadioButton) findViewById(R.id.menu2_radioButton_recommend);
menu2RadioButtonPhone = (RadioButton) findViewById(R.id.menu2_radioButton_phone);
menu2RadioButtonAuto = (RadioButton) findViewById(R.id.menu2_radioButton_auto);
menu2RadioButtonComputer = (RadioButton) findViewById(R.id.menu2_radioButton_computer);
menu2RadioButtonClassify = (RadioButton) findViewById(R.id.menu2_radioButton_classify);
menu2ViewPager = (ViewPager) findViewById(R.id.menu2_viewPager);
// menu2TabLayout.addTab();
}
class Find_tab_Adapter extends FragmentPagerAdapter{
private List fragments;//存放fragment
private List list_title;//文字
public Find_tab_Adapter(FragmentManager fm, List fragments, List list_title) {
super(fm);
this.fragments = fragments;
this.list_title = list_title;
}
public Find_tab_Adapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int i) {
return fragments.get(i);
}
@Override
public int getCount() {
return list_title.size();
}
/**
* 显示tab上的名字
* @param position
* @return
*/
@Nullable
@Override
public CharSequence getPageTitle(int position) {
return list_title.get(position%list_title.size());
}
}
}
主界面代码
package com.example.month7day26ap;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.os.UserHandle;
import android.preference.PreferenceManager;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.example.month7day26ap.userData.User;
import com.example.month7day26ap.userData.UserHelper;
import com.example.month7day26ap.userData.UserUtil;
public class Menu extends AppCompatActivity {
private EditText menuEditName;
private EditText menuEditPwd;
private Button menuButtonEnter;
private CheckBox checkBox;
private TextView tv;
//内存
private SharedPreferences sharedPreferences;
private SharedPreferences.Editor edit;
private UserHelper uh;
private SQLiteDatabase db;
private UserUtil userUtil;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
menuEditName = (EditText) findViewById(R.id.menu_edit_name);
menuEditPwd = (EditText) findViewById(R.id.menu_edit_pwd);
menuButtonEnter = (Button) findViewById(R.id.menu_button_enter);
tv=findViewById(R.id.Menu_text_LogIn);
checkBox=findViewById(R.id.menu_checkBox);
uh=new UserHelper(this,"user.db",null,1);
db=uh.getReadableDatabase();
userUtil = new UserUtil(db);
menuButtonEnter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String name = menuEditName.getText().toString();
String pwd = menuEditPwd.getText().toString();
if( name.equals("admin")&&pwd.equals("admin")){
if( checkBox.isChecked()){
String query = userUtil.query(name);
if( query==null){
User user = new User();
user.setName("admin");
user.setPwd("admin");
userUtil.insert(user);
Toast.makeText(Menu.this, "登录失败，新建用户---》"+user.toString()+"\n请在三秒内记住信息。", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(Menu.this, query, Toast.LENGTH_SHORT).show();
}
// sharedPreferences=PreferenceManager.getDefaultSharedPreferences(Menu.this);
// edit = sharedPreferences.edit();
// edit.putBoolean(“key”,true);
// //写入内存。
// edit.apply();
}
Toast.makeText(Menu.this, “登陆成功。”, Toast.LENGTH_SHORT).show();
}
}
});
tv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final AlertDialog.Builder builder = new AlertDialog.Builder(Menu.this);
final View inflate = LayoutInflater.from(Menu.this).inflate(R.layout.enter_layout, null);
builder.setView(inflate);
builder.setTitle("登录界面");
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
EditText id = inflate.findViewById(R.id.enter_editText_id);
String name = id.getText().toString();
EditText epwd = inflate.findViewById(R.id.enter_editText_pwd);
String pwd = epwd.getText().toString();
User user = new User();
user.setPwd(pwd);
user.setName(name);
boolean enter = userUtil.enter(user);
if( enter){
Toast.makeText(Menu.this, "登陆成功。", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(Menu.this, "登录失败。", Toast.LENGTH_SHORT).show();
}
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
});
}
}
fragmentxml
import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
import com.example.month7day26ap.GuidePager.GuideFragment;
import com.example.month7day26ap.userData.UserHelper;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
public class MainActivity extends AppCompatActivity {
private static final String TAG = “132321”;
private ViewPager vp;
private int[] arr={R.drawable.image1,R.drawable.image2,R.drawable.image3,
R.drawable.image4,R.drawable.image5};
private List list=new ArrayList<>();
private int flag=0;
private UserHelper uh;
@SuppressLint("HandlerLeak")
private Handler han=new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
int arg1 = msg.arg1;
if( arg1==4){
Toast.makeText(MainActivity.this, "点击进入下个页面。", Toast.LENGTH_SHORT).show();
}
vp.setCurrentItem(arg1);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
vp=findViewById(R.id.GuidePager_viewPager);
for (int i = 0; i < 5; i++) {
GuideFragment guideFragment = new GuideFragment();
guideFragment.setImage(arr[i]);
list.add(guideFragment);
}
vp.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
@Override
public Fragment getItem(int i) {
return list.get(i);
}
@Override
public int getCount() {
return list.size();
}
});
final Timer timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
Message obtain = Message.obtain();
obtain.arg1=flag;
han.sendMessage(obtain);
flag++;
if( flag==5){
timer.cancel();
}
}
},0,1500);
vp.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int i, float v, int i1) {
Log.i(TAG, "onPageScrolled: i\t"+i);
Log.i(TAG, "onPageScrolled: i10\t"+i1);
}
@Override
public void onPageSelected(int i) {
Log.i(TAG, "onPageSelected: "+i);
if (i==list.size()-1){
GuideFragment fragment = list.get(i);
ImageView iv = fragment.getIv();
iv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "跳转完毕。", Toast.LENGTH_SHORT).show();
Intent it = new Intent(MainActivity.this, Menu.class);
startActivity(it);
}
});
}
}
@Override
public void onPageScrollStateChanged(int i) {
}
});
// vp.addOnPageChangeListener(new On);
}
}