android服務啟動不了

5. Android中關於服務啟動問題

1. 如果你的service沒掛掉，那麼就走onStartCommand()

2. 如果掛掉了，onCreate()->onStartCommand()
   

6. react-native run-android服務起不來，有沒有人知道

你需要先安裝最新版本的node.js（我最後使用的是v4.1.2），前往官網下載>>
註：我win7已經安裝過Visual Studio 2013和Android開發環境（也踩了不少坑，後面有截圖）

為了方便切換npm源，需要先安裝nrm模塊


因為公司內把taobao全線屏蔽了，所以我用了cnpm的鏡像因為我之前電腦里安裝了node的v0.12.7版本，所以我遇到了下面的坑如果你也跟我一樣啟動的時候報錯了，那麼你需要升級node.js，直接到官網下載並安裝，安裝路徑覆蓋現有安裝目錄即可。官網上也提到node的最低版本要求

7. android 的service一直啟動不了，不知道為何

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("正在登錄..."); 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, "登錄失敗", 1000).show(); //}else{ // Toast.makeText(this, "登錄成功", 3000).show(); System.out.print("進入跳轉方法"); 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; } //啟動線程 @Override publicvoid onCreate() { System.out.print("進入到線程"); // 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("進入到添加處任務處"); allTask.add(task); } // 執行任務，業務邏輯調用，執行完後移出任務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("進入到關鍵流程"); 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); // } // 偵聽任務 @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("~~~~處理參數，來自其它界面的參數~~~~~~~~~"); 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 開機啟動服務 失敗

有兩種方式可以解決
第一種方式：E:\adt-bundle-windows-x86_64-20140321\sdk\platform-tools\adb.exe
第二種方式：重啟電腦