MainActivity
package com.example.demo01_service;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.example.demo01_service.service.Service;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private Service.Mybind bind;
ServiceConnection connection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
bind = (Service.Mybind) iBinder;
}
@Override
public void onServiceDisconnected(ComponentName componentName) {
}
};
private TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//跳轉
Intent intent = new Intent(MainActivity.this,Service.class);
//開啓service
//註冊service
bindService(intent,connection,Service.BIND_AUTO_CREATE);
//獲取控件
Button button = findViewById(R.id.butt_dj);
textView = findViewById(R.id.textview);
button.setOnClickListener(this);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.butt_dj:
//獲取本地時間
String date = bind.getDate();
textView.setText(""+date);
//吐絲隨機數
Toast.makeText(MainActivity.this,""+bind.getRandom(),Toast.LENGTH_SHORT).show();
break;
}
}
}
Service
package com.example.demo01_service.service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.support.annotation.Nullable;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;
/**
* @Auther: 努力
* @Date: 2019/1/2 10:43:${盧文傑}
* @Description:
*/
public class Service extends android.app.Service {
//內部類
public class Mybind extends Binder{
//隨機值
public String getRandom() {
Random random = new Random();
return random.nextInt(9) + "";
}
// 獲取本地時間
public String getDate() {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
"yyyy年MM月dd日 HH:mm:ss");
Date date = new Date(System.currentTimeMillis());
String timeDate = simpleDateFormat.format(date);
return timeDate;
}
}
//實例化
private Mybind mybind = new Mybind();
@Nullable
@Override
public IBinder onBind(Intent intent) {
return mybind;
}
}
切記一定要在清單文件中註冊
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.demo01_service">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".service.Service"/>
</application>
</manifest>