传递数据后创建后台service来处理事件！

时间：2025-01-18 13:32:56




package com.lixu.service;

import android.app.Service;

import android.content.Intent;

import android.os.IBinder;

import android.widget.Toast;

//定义一个后台类

public class Myservice extends Service {

    @Override

    public void onCreate() {

        // TODO Auto-generated method stub

        super.onCreate();

    }

    @Override

    public int onStartCommand(Intent intent, int flags, int startId) {

        int[] nums=intent.getIntArrayExtra(Changliang.KEY);

        int numhe=nums[0]+nums[1];

        Toast.makeText(getApplicationContext(), numhe+"", 1).show();

        return super.onStartCommand(intent, flags, startId);

    }

    @Override

    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        return null;

    }

}






import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

public class MainActivity extends Activity {

    EditText et1;

    EditText et2;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        et1=(EditText) findViewById(R.id.et1);

        et2=(EditText) findViewById(R.id.et2);

        Button button=(Button) findViewById(R.id.btn1);

        button.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent intent=new Intent(MainActivity.this,Myservice.class);

                int[] nums=new int[2];

                nums[0]=Integer.parseInt(et1.getText().toString());

                nums[1]=Integer.parseInt(et2.getText().toString());

                intent.putExtra(Changliang.KEY, nums);

                startService(intent);

            }

        });

    }

    @Override

    protected void onDestroy() {

        //Activity销毁的时候关闭服务

        Intent intent=new Intent(MainActivity.this,Myservice.class);

        stopService(intent);

        super.onDestroy();

    }

}




记住在manifest中注册service；




<application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service android:name=".Myservice" >

        </service>

    </application>


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