ServiceDemo
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Service
package com.syl.basicsummary.service;import android.app.Service;import android.content.Intent;import android.os.Binder;import android.os.IBinder;import android.support.annotation.Nullable;import android.util.Log;import android.widget.Toast;/** * Created by j3767 on 2017/3/1. * * @Describe 服务 * @Called */public class MyService extends Service { public static final String TAG = MyService.class.getSimpleName(); private MyBinder mMyBinder = new MyBinder(); @Nullable @Override public IBinder onBind(Intent intent) { Toast.makeText(this, "MyService---onBind()被调用---", Toast.LENGTH_SHORT).show(); Log.d(TAG, "onBind() ----绑定服务"); return mMyBinder; } @Override public void onCreate() { Toast.makeText(this, "MyService---onCreate()被调用---", Toast.LENGTH_SHORT).show(); Log.d(TAG, "onCreate() ----创建服务"); super.onCreate(); } @Override public int onStartCommand(Intent intent, int flags, int startId) { Toast.makeText(this, "MyService---onStartCommand()被调用---", Toast.LENGTH_SHORT).show(); Log.d(TAG, "onStartCommand() ----"); return super.onStartCommand(intent, flags, startId); } @Override public void onDestroy() { Toast.makeText(this, "MyService---onDestroy()被调用---", Toast.LENGTH_SHORT).show(); Log.d(TAG, "onDestroy() ----销毁服务"); super.onDestroy(); } @Override public boolean onUnbind(Intent intent) { Toast.makeText(this, "MyService---onUnbind()被调用---", Toast.LENGTH_SHORT).show(); Log.d(TAG, "onUnbind() ----你解绑服务"); return super.onUnbind(intent); } /** * author j3767 * date 2017/3/2 0:14 * desc * 必须使用public修饰符,否则外部无法调用 */ public class MyBinder extends Binder { public void callMethodInService() { methodInService(); } } /** * 创建服务的代理,调用服务中的方法 * 服务中的方法 */ public void methodInService() { Log.d(TAG, "methodInService----服务中的方法"); }}与Service交互的Activity
package com.syl.basicsummary.activity;import android.content.ComponentName;import android.content.Intent;import android.content.ServiceConnection;import android.content.res.AssetManager;import android.os.Bundle;import android.os.IBinder;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.webkit.WebSettings;import android.webkit.WebView;import android.widget.Button;import com.syl.basicsummary.R;import com.syl.basicsummary.service.MyService;import com.syl.basicsummary.utils.WebUtil;import butterknife.BindView;import butterknife.ButterKnife;import butterknife.OnClick;/** * author j3767 * date 2017/3/1 20:54 * desc * 和Service进行交互的界面 * <p> * Service的使用步骤: * 1.创建Service的子类MyService,实现对应的生命周期方法 * 2.在MyService中创建一个内部类MyBinder,继承自Binder,提供给外界访问 * 3.在Activity中创建一个MyConnection,实现ServiceConnection接口,将回调参数IBinder service赋值给 * mMyBinder = (MyService.MyBinder) service; */public class ServiceActivity extends AppCompatActivity { public static final String TAG = ServiceActivity.class.getSimpleName(); @BindView(R.id.btn_start_service) Button mBtnStartService; @BindView(R.id.btn_stop_service) Button mBtnStopService; @BindView(R.id.webView) WebView mWebView; private MyService.MyBinder mMyBinder; private MyConn mMyConn; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_service); ButterKnife.bind(this); WebSettings settings = mWebView.getSettings(); settings.setJavaScriptEnabled(true);// settings.setUseWideViewPort(true);//适应分辨率 settings.setLoadWithOverviewMode(true); } /** * 开启服务 * * @param view */ @OnClick(R.id.btn_start_service) public void btn_start_service(View view) { Intent intent = new Intent(this, MyService.class); startService(intent); } /** * 停止服务 * * @param view */ @OnClick(R.id.btn_stop_service) public void btn_stop_service(View view) { Intent intent = new Intent(this, MyService.class); stopService(intent); } /** * 绑定服务 * * @param view */ @OnClick(R.id.btn_bind_service) public void btn_bind_service(View view) { if (mMyConn == null) { mMyConn = new MyConn(); } Intent intent = new Intent(this, MyService.class); bindService(intent, mMyConn, BIND_AUTO_CREATE); } /** * 解绑服务 * * @param view */ @OnClick(R.id.btn_unbind_service) public void btn_unbind_service(View view) { if (mMyConn == null) { mMyConn = new MyConn(); } unbindService(mMyConn); } /** * 调用服务中的方法 * * @param view */ @OnClick(R.id.btn_call_in_service) public void btn_call_in_service(View view) { mMyBinder.callMethodInService(); } /** * 实现回调接口ServiceConnection的的类 */ private class MyConn implements ServiceConnection { /** * 连接成功 * * @param name * @param service */ @Override public void onServiceConnected(ComponentName name, IBinder service) { mMyBinder = (MyService.MyBinder) service; Log.d(TAG, "服务成功绑定---" + service.toString()); } /** * 断开连接 * * @param name */ @Override public void onServiceDisconnected(ComponentName name) { } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_menu, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.item_load_code: loadCodeInHtml();//加载html中的代码 break; default: break; } return super.onOptionsItemSelected(item); } /** * 加载html */ private void loadCodeInHtml() { AssetManager assetManager = getResources().getAssets(); String url = WebUtil.getFromAssets("serviceDemo.htm", assetManager); mWebView.loadDataWithBaseURL(null, url, "text/html", "utf-8", null); }} 0 0
