android服务启动不了

5. Android中关于服务启动问题

1. 如果你的service没挂掉，那么就走onStartCommand()

2. 如果挂掉了，onCreate()->onStartCommand()
   

6. react-native run-android服务起不来，有没有人知道

你需要先安装最新版本的node.js（我最后使用的是v4.1.2），前往官网下载>>
注：我win7已经安装过Visual Studio 2013和Android开发环境（也踩了不少坑，后面有截图）

为了方便切换npm源，需要先安装nrm模块


因为公司内把taobao全线屏蔽了，所以我用了cnpm的镜像因为我之前电脑里安装了node的v0.12.7版本，所以我遇到了下面的坑如果你也跟我一样启动的时候报错了，那么你需要升级node.js，直接到官网下载并安装，安装路径覆盖现有安装目录即可。官网上也提到node的最低版本要求

7. android 的service一直启动不了，不知道为何

package Com.RuiZhi.Iscan; import java.util.HashMap; import java.util.Map; import Com.RuiZhi.Logic.Task; import Com.RuiZhi.Logic.MainService; import android.os.Bundle; import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; 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; import android.support.v4.app.NavUtils; import Com.RuiZhi.Logic.*; publicclass Login extends Activity implements IScanActivity { EditText txtUser; EditText txtPwd; Button btnLogin; public ProgressDialog pd; @Override publicvoid onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); txtUser = (EditText)findViewById(R.id.txtUser); txtPwd = (EditText)findViewById(R.id.txtPwd); //init() ; btnLogin = (Button)findViewById(R.id.loginButton); btnLogin.setOnClickListener(new OnClickListener() { @Override publicvoid onClick(View v) { // TODO Auto-generated method stub pd = new ProgressDialog(Login.this); pd.setMessage("正在登录..."); pd.show(); String name = txtUser.getText().toString(); String pass = txtPwd.getText().toString(); Map map = new HashMap(); map.put("user", name); map.put("pass", pass); System.out.print(name); Task task = new Task(Task.TASK_LOGIN,map); MainService.newTask(task); } }); MainService.allActivity.add(this); } @Override protectedvoid onDestroy() { // TODO Auto-generated method stubsuper.onDestroy(); } @Override protectedvoid onResume() { // TODO Auto-generated method stubsuper.onResume(); init(); } @Override publicvoid init() { // TODO Auto-generated method stub System.out.print("初始化操作"); try { //Com.RuiZhi.Logic.MainService Intent it = new Intent("Com.RuiZhi.Logic.MainService"); startService(it); } catch(Exception e) { System.out.println(e.toString()); } } @Override publicvoid refresh(Object... args) { // TODO Auto-generated method stub pd.dismiss(); //if(args[1]==null){ //Toast.makeText(this, "登录失败", 1000).show(); //}else{ // Toast.makeText(this, "登录成功", 3000).show(); System.out.print("进入跳转方法"); Intent it = new Intent(); it.setClass(Login.this, Main.class); startActivity(it); finish(); //} } // @Override // public boolean onCreateOptionsMenu(Menu menu) { //// getMenuInflater().inflate(R.menu.activity_login, menu); //// return true; // } }package Com.RuiZhi.Logic; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import Com.RuiZhi.Logic.IScanActivity;//Logic.IWeiboActivity;import Com.RuiZhi.Logic.Task; import android.app.Activity; import android.app.Service; import android.content.Context; import android.content.Intent; import android.graphics.drawable.BitmapDrawable; import android.os.Handler; import android.os.IBinder; import android.os.Message; publicclass MainService extends Service implements Runnable { //public static Weibo weibo = new Weibo();publicstatic List<Activity> allActivity = new ArrayList<Activity>(); publicstatic List<Task> allTask = new ArrayList<Task>(); publicstatic HashMap<Integer, BitmapDrawable> alluserIcon = new HashMap<Integer, BitmapDrawable>(); // public static User nowUser;publicboolean isrun = true; publicstatic Activity getActivityByName(String name) { for (Activity ac : allActivity) { if (ac.getClass().getName().indexOf(name) >= 0) { return ac; } } returnnull; } //启动线程 @Override publicvoid onCreate() { System.out.print("进入到线程"); // TODO Auto-generated method stubsuper.onCreate(); Thread t = new Thread(this); t.start(); } @Override publicvoid onDestroy() { // TODO Auto-generated method stubsuper.onDestroy(); } publicstaticvoid newTask(Task task) { System.out.print("进入到添加处任务处"); allTask.add(task); } // 执行任务，业务逻辑调用，执行完后移出任务publicvoid doTask(Task task) { Message mess = handler.obtainMessage(); mess.what = task.getTaskId(); System.out.println("#####----doTask-----"); try { switch (task.getTaskId()) { case Task.TASK_LOGIN: System.out.print("进入到关键流程"); break; case Task.TASK_GET_TIMELINE: break; case Task.TASK_GET_USER_ICON: break; case Task.TASK_NEW_WEIBO: break; } } catch (Exception e) { } handler.sendMessage(mess); // allTask.remove(task); // } // 侦听任务 @Override publicvoid run() { // TODO Auto-generated method stubwhile (isrun) { System.out.println("------RUN-----------"); Task lastTask = null; if (allTask.size() > 0) { lastTask = allTask.get(0); doTask(lastTask); } try { Thread.sleep(1000); } catch (Exception e) { } ; } } @Override public IBinder onBind(Intent arg0) { returnnull; } // 更新UIprivate Handler handler = new Handler() { @Override publicvoid handleMessage(Message msg) { // TODO Auto-generated method stubsuper.handleMessage(msg); System.out.println("~~~~处理参数，来自其它界面的参数~~~~~~~~~"); switch (msg.what) { case Task.TASK_LOGIN: System.out.print("afasdfsf"); IScanActivity ia = (IScanActivity) getActivityByName("Login"); ia.refresh(msg.what, msg.obj); break; case Task.TASK_GET_TIMELINE: break; case Task.TASK_GET_USER_ICON: break; case Task.TASK_NEW_WEIBO: break; } } }; publicstaticvoid exitApp(Context con) { for (Activity ac : allActivity) { ac.finish(); } // Intent it = new Intent("Com.RuiZhi.Logic.MainService"); con.stopService(it); } }

8. android 开机启动服务 失败

有两种方式可以解决
第一种方式：E:\adt-bundle-windows-x86_64-20140321\sdk\platform-tools\adb.exe
第二种方式：重启电脑