每日健康打卡

主要点：

1、定位功能的实现，GPS和网络定位两种方式

2、广告植入的实现 Intent类

3、Timer TimerTask两个类

4、隐藏标题栏

5、okhttp包的使用

6、json数据的传输格式

广告界面的实现（Intent类 和 Timer TimerTask 类的实现）：

import android.content.Intent;
import android.support.annotation.IdRes;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;

public class ad extends AppCompatActivity {

    int imgs[] = {R.drawable.c1,R.drawable.c2};
    int i = 1;
    TextView tv;
    ImageView iv;
    Timer t = new Timer();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ad);
        Random r = new Random();
        iv = (ImageView) findViewById(R.id.image1);
        iv.setImageResource(imgs[r.nextInt(2)]);
        tv = (TextView)findViewById(R.id.text1);
        TimerTask tk = new TimerTask() {
            @Override
            public void run() {
                i = i -1;
                tv.setText("还剩" + i + "秒");
                if(i == 0){
                    t.cancel();
                    Intent intent = new Intent(ad.this,HelathActivity.class);
                    startActivity(intent);
                }
            }
        };
        t.schedule(tk,10,1000);
    }
}

登陆/注册界面的实现（ okhttp，线程的实现 Json传输数据）：

package com.example.myapplication;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import androidx.appcompat.app.AppCompatActivity;

import java.io.IOException;

import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class LoginActivity extends AppCompatActivity {

    private OkHttpClient client = new OkHttpClient();


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        Button btn01 = findViewById(R.id.button2);

        btn01.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                new Thread(new Runnable() {
                    public void run() {
                        EditText username = findViewById(R.id.username);
                        EditText password = findViewById(R.id.password);
                        String myJson = "{\"username\":\"" + username.getText().toString() +  "\",\"userpassword\":\"" + password.getText().toString() + "\"}";
                        try {
                            String res = postJson("http://192.168.1.105/login.php",myJson);
                            Log.d("myRes",myJson);
                        } catch (IOException e) {
                            Log.d("myRes","有IO异常捕获！");
                        }
                    }
                }).start();
            }
        });

    }

    // http方法
    private String postJson(String url, String myJson) throws IOException {
        MediaType JSON = MediaType.get("application/json; charset=utf-8"); //创建Content-Type类型为json
        RequestBody body = RequestBody.create(myJson, JSON); // 创建http请求报文 其中包含了请求体body和请求头JSON
        Request request = new Request.Builder().url(url).post(body).build(); //封装完整的http请求报文
        try{
            Response response = client.newCall(request).execute(); //最后通过client 发送request请求
            return response.body().string(); //返回相应包的内容
        }
        catch(Exception ex){
            return null;
        }
    }
}

定位健康打卡的界面实现（ 动态申请权限 GPS/Internet定位 json数据的传输格式）：

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okio.BufferedSink;

public class MainActivity extends AppCompatActivity {

    final int LOCATION_CODE=1;
    TextView tv1,tv2;
    Button tijiao;
    private double latitude = 0.0;
    private double longitude = 0.0;
    RadioButton radio1,radio2,radio3;
    TextView et1;
    CheckBox cb1,cb2,cb3,cb4,cb5;



    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        radio1 = findViewById(R.id.radio1);
        radio2 = findViewById(R.id.radio2);
        radio3 = findViewById(R.id.radio3);

        tijiao = findViewById(R.id.btn_tijiao);

        et1 = findViewById(R.id.country);
        cb1 = findViewById(R.id.check1);
        cb2 = findViewById(R.id.check2);
        cb3 = findViewById(R.id.check3);
        cb4 = findViewById(R.id.check4);
        cb5 = findViewById(R.id.check5);


        tijiao.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String myJson = "{\"";
                if(radio1.isChecked()){
                    myJson += "UserStatus\":\"" + radio1.getText().toString() + "\",\"";
                }else if(radio2.isChecked()){
                    myJson += "UserStatus\":\"" + radio2.getText().toString() + "\",\"";
                }else{
                    myJson += "UserStatus\":\"" + radio3.getText().toString() + "\",\"";
                }

                myJson += "county\":\"" + et1.getText().toString() + "\",\"";

                if(cb1.isChecked()){
                    myJson += "zhengzhuang\":\"" + cb1.getText().toString() + "\"}";
                }else if(cb2.isChecked()){
                    myJson += "zhengzhuang\":\"" + cb2.getText().toString() + "\"}";
                }else if(cb3.isChecked()){
                    myJson += "zhengzhuang\":\"" + cb3.getText().toString() + "\"}";
                }else if(cb4.isChecked()){
                    myJson += "zhengzhuang\":\"" + cb4.getText().toString() + "\"}";
                }else{
                    myJson += "zhengzhuang\":\"" + cb5.getText().toString() + "\"}";
                }

                //Log.d("myJson",myJson);

                MediaType Json = MediaType.get("application/json charset=utf-8");
                OkHttpClient okHttpClient = new OkHttpClient();

                RequestBody requestBody = RequestBody.create(myJson,Json);
                Request request = new Request.Builder().url("http://192.168.1.135/go.php").post(requestBody).build();
                try {
                    Response response = okHttpClient.newCall(request).execute();
                    Log.d("resp",response.body().toString());
                }catch(Exception ex) {
                    return;
                }
            }

        });

        Location location;
        tv1=findViewById(R.id.country);
        tv2=findViewById(R.id.address);
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(this,Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
        {
            ActivityCompat.requestPermissions(
                    this,
                    new String[]{
                            Manifest.permission.ACCESS_FINE_LOCATION,
                            Manifest.permission.ACCESS_COARSE_LOCATION
                    },
                    LOCATION_CODE
            );
        }

        // GPS实现定位的方法
        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            try {
                location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            }catch(Exception ex){
                return;
            }

            if(location!=null){
                Address address = getLocationAddress(location);
                tv1.setText(address.getAddressLine(0));
                tv2.setText(address.getAdminArea()+"-"+address.getLocality()+"-"+address.getSubLocality());
            }else{
                tv1.setText("地址获取失败，请检查GPS定位是否开启！");
                tv2.setText("地址获取失败，请检查GPS定位是否开启！");
            }
            /*
            final Address address =getLocationAddress(location);
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    currentLocation.setText(address.getAddressLine(0));
                    currentDistrict.setText(address.getAdminArea()+"-"+address.getLocality()+"-"+address.getSubLocality());
                }
            });
            */
        }
        else{
            //网络定位实现的方法
            LocationListener locationListener =new LocationListener() {
                @Override
                public void onStatusChanged(String provider, int status, Bundle extras) {

                }

                @Override
                public void onProviderEnabled(String provider) {

                }

                @Override
                public void onProviderDisabled(String provider) {

                }
                @Override
                public void onLocationChanged(Location location) {
                    if(location!=null){
                        Log.e("NBCCMap","Location changed : Lat:"+location.getLatitude()+"Lng: " + location.getLongitude());
                    }
                }
            };


            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,1000,0,locationListener);
            location =  locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            if(location != null){
                latitude = location.getLatitude();
                longitude = location.getLongitude();
                Log.d("getLocationAddress2","getLocationAddress2");
                Address address=getLocationAddress(location);
                tv1.setText(getLocationAddress(location).getAddressLine(0));
                tv2.setText(address.getAdminArea()+"-"+ address.getLocality() + "-" +address.getSubLocality());
            }else{
                tv1.setText("地址获取失败，请检查网络是否可用！");
                tv2.setText("地址获取失败，请检查网络是否可用！");
            }
        }
    }

    private Address getLocationAddress(Location location) {
        Geocoder geocoder=new Geocoder(getBaseContext(), Locale.CHINESE);
        try {
            List<Address> addresses= geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
            return addresses.get(0);
        }
        catch (Exception ex){
            return  null;
        }
    }
}