问题描述
我得到一个强制关闭,当我试图阻止我的普惠制监听
这里的code:
mlocManager.removeUpdates(mlocListener);
mlocManager = NULL;
和这样的:
LocationManager mlocManager =(LocationManager)getSystemService(Context.LOCATION_SERVICE);
LocationListener的mlocListener =新MyLocationListener();
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
(长)的更新,0,mlocListener);
请帮帮我,我不明白为什么它强行关闭。
11月7号至三十零日:43:39.557:D / AndroidRuntime(1071):关闭虚拟机
11月7号至三十○日:43:39.557:W / dalvikvm(1071):主题ID = 1:螺纹退出与未捕获的异常(组= 0x40015560)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):致命异常:主要
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):显示java.lang.NullPointerException
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在com.example.anotheractivity.Festivale $ 1.onClick(Festivale.java:109)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在android.view.View.performClick(View.java:2485)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在android.view.View $ PerformClick.run(View.java:9080)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在android.os.Handler.handleCallback(Handler.java:587)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在android.os.Handler.dispatchMessage(Handler.java:92)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在android.os.Looper.loop(Looper.java:123)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在android.app.ActivityThread.main(ActivityThread.java:3683)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在java.lang.reflect.Method.invokeNative(本机方法)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在java.lang.reflect.Method.invoke(Method.java:507)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:839)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11月7号至三十○日:43:39.575:E / AndroidRuntime(1071):在dalvik.system.NativeStart.main(本机方法)
11月7号至三十○日:43:41.565:I /过程(1071):发送信号。 PID:1071 SIG:9
我该做一个服务。这是很容易使用它获得经度/纬度。
- 复制/粘贴到你的项目这个类。
包com.sample; 进口com.sample.globalconstant;
进口android.app.Service;
进口android.content.Context;
进口android.content.Intent;
进口android.location.Location;
进口android.location.LocationManager;
进口android.os.Bundle;
进口android.os.IBinder;
进口android.util.Log;
进口android.widget.Toast;
公共类MyServiceGPS扩展服务
{
私有静态最后字符串变量=BOOMBOOMTESTGPS;
私人LocationManager mLocationManager = NULL;
私有静态最终诠释LOCATION_INTERVAL = 1000;
私有静态最终浮动LOCATION_DISTANCE = 10F;
私有类LocationListener的实现android.location.LocationListener {
地点mLastLocation;
公共LocationListener的(字符串提供商)
{
Log.e(TAG,LocationListener的+供应商);
mLastLocation =新的位置(供应商);
}
公共无效onLocationChanged(位置定位)
{
Log.e(TAG,onLocationChanged:+ location.getLatitude()+.....+ location.getLongitude());
globalconstant.lat = location.getLatitude();
globalconstant.lon = location.getLongitude();
Toast.makeText(getApplicationContext(),location.getLatitude()+.....+ location.getLongitude(),1000).show();
mLastLocation.set(位置);
}
公共无效onProviderDisabled(字符串提供商)
{
Log.e(TAG,onProviderDisabled:+供应商);
}
公共无效onProviderEnabled(字符串提供商)
{
Log.e(TAG,onProviderEnabled:+供应商);
}
公共无效onStatusChanged(字符串商,INT地位,捆绑演员)
{
Log.e(TAG,onStatusChanged:+供应商);
}
}
LocationListener的[] mLocationListeners =新LocationListener的[] {
新LocationListener的(LocationManager.GPS_PROVIDER)
新LocationListener的(LocationManager.NETWORK_PROVIDER)
};
@覆盖
公众的IBinder onBind(意向为arg0)
{
返回null;
}
@覆盖
公众诠释onStartCommand(意向意图,诠释标志,INT startId)
{
Log.e(TAG,onStartCommand);
super.onStartCommand(意向,标志,startId);
返回START_STICKY;
}
@覆盖
公共无效的onCreate()
{
Log.e(TAG的onCreate);
initializeLocationManager();
尝试 {
mLocationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,LOCATION_INTERVAL,LOCATION_DISTANCE,
mLocationListeners [1]);
}赶上(java.lang.SecurityException异常前){
Log.i(TAG,不要求位置更新,忽略,前);
}赶上(抛出:IllegalArgumentException前){
Log.d(TAG,网络提供商不存在,+ ex.getMessage());
}
尝试 {
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,LOCATION_INTERVAL,LOCATION_DISTANCE,
mLocationListeners [0]);
}赶上(java.lang.SecurityException异常前){
Log.i(TAG,不要求位置更新,忽略,前);
}赶上(抛出:IllegalArgumentException前){
Log.d(TAG,GPS供应商不存在+ ex.getMessage());
}
}
@覆盖
公共无效的onDestroy()
{
Log.e(TAG的onDestroy);
super.onDestroy();
如果(mLocationManager!= NULL){
的for(int i = 0; I< mLocationListeners.length;我++){
尝试 {
mLocationManager.removeUpdates(mLocationListeners [I]);
}赶上(例外前){
Log.i(TAG,无法删除的位置listners,忽视,前);
}
}
}
}
私人无效initializeLocationManager(){
Log.e(TAG,initializeLocationManager);
如果(mLocationManager == NULL){
mLocationManager =(LocationManager)getApplicationContext()getSystemService(Context.LOCATION_SERVICE)。
}
}
}
-
在你的活动复制此code时,要启动:
startService(新意图(这一点,MyServiceGPS.class));
-
创建一个类globalconstant:
公共类globalconstant { 公共静态双重纬度,经度; }
当你想当前的纬度和经度在项目中只写本
globalconstant.lat,globalconstant.lon
-
添加使用,许可清单
I got a force close when I tried to stop my gsp listener
Here's the code:
mlocManager.removeUpdates(mlocListener);
mlocManager = null;
and this:
LocationManager mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
LocationListener mlocListener = new MyLocationListener();
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
(long) update, 0, mlocListener);
Please help me, I don't understand why it force closes.
07-30 11:43:39.557: D/AndroidRuntime(1071): Shutting down VM
07-30 11:43:39.557: W/dalvikvm(1071): threadid=1: thread exiting with uncaught exception (group=0x40015560)
07-30 11:43:39.575: E/AndroidRuntime(1071): FATAL EXCEPTION: main
07-30 11:43:39.575: E/AndroidRuntime(1071): java.lang.NullPointerException
07-30 11:43:39.575: E/AndroidRuntime(1071): at com.example.anotheractivity.Festivale$1.onClick(Festivale.java:109)
07-30 11:43:39.575: E/AndroidRuntime(1071): at android.view.View.performClick(View.java:2485)
07-30 11:43:39.575: E/AndroidRuntime(1071): at android.view.View$PerformClick.run(View.java:9080)
07-30 11:43:39.575: E/AndroidRuntime(1071): at android.os.Handler.handleCallback(Handler.java:587)
07-30 11:43:39.575: E/AndroidRuntime(1071): at android.os.Handler.dispatchMessage(Handler.java:92)
07-30 11:43:39.575: E/AndroidRuntime(1071): at android.os.Looper.loop(Looper.java:123)
07-30 11:43:39.575: E/AndroidRuntime(1071): at android.app.ActivityThread.main(ActivityThread.java:3683)
07-30 11:43:39.575: E/AndroidRuntime(1071): at java.lang.reflect.Method.invokeNative(Native Method)
07-30 11:43:39.575: E/AndroidRuntime(1071): at java.lang.reflect.Method.invoke(Method.java:507)
07-30 11:43:39.575: E/AndroidRuntime(1071): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
07-30 11:43:39.575: E/AndroidRuntime(1071): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
07-30 11:43:39.575: E/AndroidRuntime(1071): at dalvik.system.NativeStart.main(Native Method)
07-30 11:43:41.565: I/Process(1071): Sending signal. PID: 1071 SIG: 9
I made one service for that. It is easy for get Longitude / Latitude using it.
- Copy/paste this class in your project.
package com.sample; import com.sample.globalconstant;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class MyServiceGPS extends Service
{
private static final String TAG = "BOOMBOOMTESTGPS";
private LocationManager mLocationManager = null;
private static final int LOCATION_INTERVAL = 1000;
private static final float LOCATION_DISTANCE = 10f;
private class LocationListener implements android.location.LocationListener{
Location mLastLocation;
public LocationListener(String provider)
{
Log.e(TAG, "LocationListener " + provider);
mLastLocation = new Location(provider);
}
public void onLocationChanged(Location location)
{
Log.e(TAG, "onLocationChanged: " + location.getLatitude() +"....."+ location.getLongitude());
globalconstant.lat = location.getLatitude();
globalconstant.lon = location.getLongitude();
Toast.makeText(getApplicationContext(), location.getLatitude() +"....."+ location.getLongitude(), 1000).show();
mLastLocation.set(location);
}
public void onProviderDisabled(String provider)
{
Log.e(TAG, "onProviderDisabled: " + provider);
}
public void onProviderEnabled(String provider)
{
Log.e(TAG, "onProviderEnabled: " + provider);
}
public void onStatusChanged(String provider, int status, Bundle extras)
{
Log.e(TAG, "onStatusChanged: " + provider);
}
}
LocationListener[] mLocationListeners = new LocationListener[] {
new LocationListener(LocationManager.GPS_PROVIDER),
new LocationListener(LocationManager.NETWORK_PROVIDER)
};
@Override
public IBinder onBind(Intent arg0)
{
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
Log.e(TAG, "onStartCommand");
super.onStartCommand(intent, flags, startId);
return START_STICKY;
}
@Override
public void onCreate()
{
Log.e(TAG, "onCreate");
initializeLocationManager();
try {
mLocationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, LOCATION_INTERVAL, LOCATION_DISTANCE,
mLocationListeners[1]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "network provider does not exist, " + ex.getMessage());
}
try {
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, LOCATION_INTERVAL, LOCATION_DISTANCE,
mLocationListeners[0]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "gps provider does not exist " + ex.getMessage());
}
}
@Override
public void onDestroy()
{
Log.e(TAG, "onDestroy");
super.onDestroy();
if (mLocationManager != null) {
for (int i = 0; i < mLocationListeners.length; i++) {
try {
mLocationManager.removeUpdates(mLocationListeners[i]);
} catch (Exception ex) {
Log.i(TAG, "fail to remove location listners, ignore", ex);
}
}
}
}
private void initializeLocationManager() {
Log.e(TAG, "initializeLocationManager");
if (mLocationManager == null) {
mLocationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
}
}
}
Copy this code in your Activity when you want to start:
startService(new Intent(this,MyServiceGPS.class));
Create one class globalconstant:
public class globalconstant { public static double lat, lon; }
when you want to current latitude and longitude in your project only write this
globalconstant.lat ,globalconstant.lon
Add uses-permission in Manifest
这篇关于安卓:当停止GPS监听器强制关闭?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!