Java android项目导入NetworkMainThreadException
在不同环境上导入项目后,我在调用主类的onCreate方法内的函数时遇到NetworkOnMainThreadException 该函数充当初始化不同变量的收集器,因此我认为它不应该真的做坏事 以下是onCreate:Java android项目导入NetworkMainThreadException,java,android,Java,Android,在不同环境上导入项目后,我在调用主类的onCreate方法内的函数时遇到NetworkOnMainThreadException 该函数充当初始化不同变量的收集器,因此我认为它不应该真的做坏事 以下是onCreate: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init_vars();
}
以下是函数:
public void init_vars() {
this.chat = new Chat();
// init mode
Map<String, String> l_mode = new HashMap<String, String>();
l_mode.put("0", "world");
l_mode.put("1", "free");
l_mode.put("2", "joint");
l_mode.put("3", "tool");
l_mode.put("4", "comp");
l_mode.put("selected", "0");
l_mode.put("default", "0");
setB_mode(l_mode);
// init power
Map<String, String> l_on_off = new HashMap<String, String>();
l_on_off.put("0", "off");
l_on_off.put("1", "on");
l_on_off.put("selected", "0");
l_on_off.put("default", "0");
setB_on_off(l_on_off);
// init power mode
Map<String, String> l_system_mode = new HashMap<String, String>();
l_system_mode.put("0", "auto");
l_system_mode.put("1", "manual");
l_system_mode.put("selected", "0");
l_system_mode.put("default", "0");
setB_system_mode(l_system_mode);
// init disp
Map<String, String> l_disp = new HashMap<String, String>();
l_disp.put("0", "joint ");
l_disp.put("1", "world ");
l_disp.put("2", "status ");
l_disp.put("3", "I/O ");
l_disp.put("4", "last_error ");
l_disp.put("selected", "0");
l_disp.put("default", "0");
setB_disp(l_disp);
// set initial text
TextView editText = (TextView) findViewById(R.id.editText1);
editText.setText("Some text");
// init errors array
// NOT USED
Map<String, String> l_error_types = new HashMap<String, String>();
// set predefined error messages
l_error_types.put("0", "error_message = go home");
l_error_types.put("1", "error_message = go away");
setB_error_types(l_error_types);
// init errors reported
// define a new error here like this:
// l_errors.put("0", "1"); //1 represents error type
Map<String, String> l_errors = new HashMap<String, String>();
l_errors.put("0", "Error test 0");
l_errors.put("1", "Error test 1");
l_errors.put("2", "Error test 1");
l_errors.put("3", "Error test 4");
l_errors.put("4", "Error test 5");
setB_errors(l_errors);
}
public void init_vars(){
this.chat=新聊天();
//初始模式
Map l_mode=new HashMap();
l_模式。put(“0”,“world”);
l_模式。put(“1”,“自由”);
l_模式投入(“2”,“联合”);
l_模式放置(“3”,“工具”);
l_模式输入(“4”,“comp”);
l_模式输入(“选定”、“0”);
l_模式。put(“默认”、“0”);
收进模式(l_模式);
//初始功率
Map l_on_off=new HashMap();
l_on_off.延迟(“0”,“off”);
l_on_off.推迟(“1”,“on”);
l_on_off.put(“已选择”、“0”);
l_on_off.put(“默认”、“0”);
设置开关(l开关);
//初始功率模式
Map l_system_mode=new HashMap();
l_系统_模式。输入(“0”,“自动”);
l_系统_模式输入(“1”,“手动”);
l_system_mode.put(“选定”、“0”);
l_system_mode.put(“默认”、“0”);
设置系统模式(l系统模式);
//初始化显示
Map l_disp=new HashMap();
存托凭证(“0”,“联合”);
存托凭证(“1”、“世界”);
存托凭证(“2”,“状态”);
l_disp.put(“3”,“I/O”);
l_disp.put(“4”,“最后一个错误”);
l_disp.put(“选定”、“0”);
存托凭证(“默认”、“0”);
立案法团(立案法团);
//设置初始文本
TextView editText=(TextView)findViewById(R.id.editText1);
setText(“某些文本”);
//初始化错误数组
//不用
Map l_error_types=new HashMap();
//设置预定义的错误消息
l_error_types.put(“0”,“error_message=go home”);
l_error_types.put(“1”,“error_message=go-away”);
设置错误类型(l错误类型);
//已报告初始化错误
//在此处定义一个新错误,如下所示:
//l_errors.put(“0”,“1”);//1表示错误类型
Map l_errors=new HashMap();
l_错误。输入(“0”,“错误测试0”);
l_错误。输入(“1”,“错误测试1”);
l_错误。输入(“2”,“错误测试1”);
l_错误。输入(“3”,“错误测试4”);
l_错误。输入(“4”,“错误测试5”);
立根误差(立根误差);
}
以及logcat:
08-22 11:56:40.512: E/AndroidRuntime(1146): FATAL EXCEPTION: main
08-22 11:56:40.512: E/AndroidRuntime(1146): Process: com.example.robot_industrial, PID: 1146
08-22 11:56:40.512: E/AndroidRuntime(1146): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.robot_industrial/com.example.robot_industrial.MainActivity}: android.os.NetworkOnMainThreadException
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.ActivityThread.access$700(ActivityThread.java:135)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.os.Handler.dispatchMessage(Handler.java:102)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.os.Looper.loop(Looper.java:137)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.ActivityThread.main(ActivityThread.java:4998)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.lang.reflect.Method.invokeNative(Native Method)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.lang.reflect.Method.invoke(Method.java:515)
08-22 11:56:40.512: E/AndroidRuntime(1146): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
08-22 11:56:40.512: E/AndroidRuntime(1146): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
08-22 11:56:40.512: E/AndroidRuntime(1146): at dalvik.system.NativeStart.main(Native Method)
08-22 11:56:40.512: E/AndroidRuntime(1146): Caused by: android.os.NetworkOnMainThreadException
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
08-22 11:56:40.512: E/AndroidRuntime(1146): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
08-22 11:56:40.512: E/AndroidRuntime(1146): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
08-22 11:56:40.512: E/AndroidRuntime(1146): at libcore.io.IoBridge.connect(IoBridge.java:112)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.net.Socket.startupSocket(Socket.java:567)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.net.Socket.tryAllAddresses(Socket.java:128)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.net.Socket.<init>(Socket.java:178)
08-22 11:56:40.512: E/AndroidRuntime(1146): at java.net.Socket.<init>(Socket.java:150)
08-22 11:56:40.512: E/AndroidRuntime(1146): at com.example.robot_industrial.Chat.<init>(Chat.java:17)
08-22 11:56:40.512: E/AndroidRuntime(1146): at com.example.robot_industrial.MainActivity.init_vars(MainActivity.java:694)
08-22 11:56:40.512: E/AndroidRuntime(1146): at com.example.robot_industrial.MainActivity.onCreate(MainActivity.java:72)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.Activity.performCreate(Activity.java:5243)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
08-22 11:56:40.512: E/AndroidRuntime(1146): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
08-22 11:56:40.512: E/AndroidRuntime(1146): ... 11 more
08-22 11:56:40.512:E/AndroidRuntime(1146):致命异常:main
08-22 11:56:40.512:E/AndroidRuntime(1146):进程:com.example.robot_industrial,PID:1146
08-22 11:56:40.512:E/AndroidRuntime(1146):java.lang.RuntimeException:无法启动活动组件信息{com.example.robot_industrial/com.example.robot_industrial.MainActivity}:android.os.networkMainThreadException
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176)
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.ActivityThread.access$700(ActivityThread.java:135)
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.os.Handler.dispatchMessage(Handler.java:102)上
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.os.Looper.loop(Looper.java:137)上
08-22 11:56:40.512:E/AndroidRuntime(1146):位于android.app.ActivityThread.main(ActivityThread.java:4998)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于java.lang.reflect.Method.Invokenactive(本机方法)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于java.lang.reflect.Method.invoke(Method.java:515)
08-22 11:56:40.512:E/AndroidRuntime(1146):在com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
08-22 11:56:40.512:E/AndroidRuntime(1146):在dalvik.system.NativeStart.main(本机方法)
08-22 11:56:40.512:E/AndroidRuntime(1146):由以下原因引起:android.os.NetworkOnMainThreadException
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
08-22 11:56:40.512:E/AndroidRuntime(1146):在libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)上
08-22 11:56:40.512:E/AndroidRuntime(1146):在libcore.io.IoBridge.connecterno(IoBridge.java:127)
08-22 11:56:40.512:E/AndroidRuntime(1146):在libcore.io.IoBridge.connect(IoBridge.java:112)上
08-22 11:56:40.512:E/AndroidRuntime(1146):在java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
08-22 11:56:40.512:E/AndroidRuntime(1146):在java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于java.net.Socket.startupSocket(Socket.java:567)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于java.net.Socket.tryalladresses(Socket.java:128)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于java.net.Socket(Socket.java:178)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于java.net.Socket(Socket.java:150)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于com.example.robot_industrial.Chat.(Chat.java:17)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于com.example.robot_industrial.MainActivity.init_vars(MainActivity.java:694)
08-22 11:56:40.512:E/AndroidRuntime(1146):位于com.example.robot_industrial.MainActivity.onCreate(MainActivity.java:72)
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.Activity.performCreate(Activity.java:5243)上
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)上
08-22 11:56:40.512:E/AndroidRuntime(1146):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
08-22 11:5
public class ExcuteNetworkOperation extends AsyncTask<Void, Void, String>{
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
/**
* show dialog
*/
super.onPreExecute();
}
@Override
protected String doInBackground(Void... params) {
// TODO Auto-generated method stub
/**
* Do network related stuff
* return string response.
*/
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
/**
* update ui thread and remove dialog
*/
super.onPostExecute(result);
}
}