Android怎么实现点击按钮获取当前位置的信息，没有地图的情况下。

1、首先，检查那个供应商是有效的。有些在设备上可能没效，有些可能在应用程序清单中无效。

2、如果有有效的供应商，启动位置监听和路由失效定时器。

3、如果从位置监听器获得更新，用供应的值，停止监听器和定时器。

4、如果没有获得更新，并且时间已经结束，那就用最后一个已知值。

5、从有效供应商获取最后一个已知值并且选择最接近的。

class MyLocation{

/

If GPS is enabled

Use minimal connected satellites count

/

private static final int min_gps_sat_count = 5;

/

Iteration step time

/

private static final int iteration_timeout_step = 500;

LocationResult locationResult;

private Location bestLocation = null;

private Handler handler = new Handler();

private LocationManager myLocationManager;

public Context context;

private boolean gps_enabled = false;

private int counts = 0;

private int sat_count = 0;

private Runnable showTime = new Runnable() {

public void run() {

boolean stop = false;

counts++;

Systemprintln("counts=" + counts);

//if timeout (1 min) exceeded, stop tying

if(counts > 120){

stop = true;

}

//update last best location

bestLocation = getLocation(context);

//if location is not ready or don`t exists, try again

if(bestLocation == null && gps_enabled){

Systemprintln("BestLocation not ready, continue to wait");

handlerpostDelayed(this, iteration_timeout_step);

}else{

//if best location is known, calculate if we need to continue to look for better location

//if gps is enabled and min satellites count has not been connected or min check count is smaller then 4 (2 sec)

if(stop == false && !needToStop()){

Systemprintln("Connected " + sat_count + " sattelites continue waiting");

handlerpostDelayed(this, iteration_timeout_step);

}else{

Systemprintln("#########################################");

Systemprintln("BestLocation finded return result to main sat_count=" + sat_count);

Systemprintln("#########################################");

// removing all updates and listeners

myLocationManagerremoveUpdates(gpsLocationListener);

myLocationManagerremoveUpdates(networkLocationListener);

myLocationManagerremoveGpsStatusListener(gpsStatusListener);

sat_count = 0;

// send best location to locationResult

locationResultgotLocation(bestLocation);

}

}

}

};

/

Determine if continue to try to find best location

/

private Boolean needToStop(){

if(!gps_enabled){

return true;

}

else if(counts <= 4){

return false;

}

if(sat_count < min_gps_sat_count){

//if 20-25 sec and 3 satellites found then stop

if(counts >= 40 && sat_count >= 3){

return true;

}

return false;

}

}

return true;

}

/

Best location abstract result class

/

public static abstract class LocationResult{

public abstract void gotLocation(Location location);

}

/

Initialize starting values and starting best location listeners

@param Context ctx

@param LocationResult result

/

public void init(Context ctx, LocationResult result){

context = ctx;

locationResult = result;

myLocationManager = (LocationManager) contextgetSystemService(ContextLOCATION_SERVICE);

gps_enabled = (Boolean) myLocationManagerisProviderEnabled(LocationManagerGPS_PROVIDER);

bestLocation = null;

counts = 0;

// turning on location updates

myLocationManagerrequestLocationUpdates("network", 0, 0, networkLocationListener);

myLocationManagerrequestLocationUpdates("gps", 0, 0, gpsLocationListener);

myLocationManageraddGpsStatusListener(gpsStatusListener);

// starting best location finder loop

handlerpostDelayed(showTime, iteration_timeout_step);

}

/

GpsStatus listener OnChainged counts connected satellites count

/

public final GpsStatusListener gpsStatusListener = new GpsStatusListener() {

public void onGpsStatusChanged(int event) {

if(event == GpsStatusGPS_EVENT_SATELLITE_STATUS){

try {

// Check number of satellites in list to determine fix state

GpsStatus status = myLocationManagergetGpsStatus(null);

Iterable<GpsSatellite>satellites = statusgetSatellites();

sat_count = 0;

Iterator<GpsSatellite>satI = satellitesiterator();

while(satIhasNext()) {

GpsSatellite satellite = satInext();

Systemprintln("Satellite: snr=" + satellitegetSnr() + ", elevation=" + satellitegetElevation());

sat_count++;

}

} catch (Exception e) {

eprintStackTrace();

sat_count = min_gps_sat_count + 1;

}

Systemprintln("#### sat_count = " + sat_count);

}

}

};

/

Gps location listener

/

public final LocationListener gpsLocationListener = new LocationListener(){

@Override

public void onLocationChanged(Location location){

}

public void onProviderDisabled(String provider){}

public void onProviderEnabled(String provider){}

public void onStatusChanged(String provider, int status, Bundle extras){}

};

/

Network location listener

/

public final LocationListener networkLocationListener = new LocationListener(){

@Override

public void onLocationChanged(Location location){

}

public void onProviderDisabled(String provider){}

public void onProviderEnabled(String provider){}

public void onStatusChanged(String provider, int status, Bundle extras){}

};

/

Returns best location using LocationManagergetBestProvider()

@param context

@return Location|null

/

public static Location getLocation(Context context){

Systemprintln("getLocation()");

// fetch last known location and update it

try {

LocationManager lm = (LocationManager) contextgetSystemService(ContextLOCATION_SERVICE);

Criteria criteria = new Criteria();

criteriasetAccuracy(CriteriaACCURACY_FINE);

criteriasetAltitudeRequired(false);

criteriasetBearingRequired(false);

criteriasetCostAllowed(true);

String strLocationProvider = lmgetBestProvider(criteria, true);

Systemprintln("strLocationProvider=" + strLocationProvider);

Location location = lmgetLastKnownLocation(strLocationProvider);

if(location != null){

return location;

}

return null;

} catch (Exception e) {

eprintStackTrace();

return null;

}

}

}

不知道你是要知道“怎么模拟按钮的点击事件”还是要知道“这个东西是怎么调上来的”1、模拟点击事件，可以用调用Button的onClick的方法。2、这个点击事件是触到屏幕后，触摸屏驱动首先得到这个消息，然后根据WindowManager里面记录的信息分发给ViewRoot，然后就一直发，就像生活委员发信件一样，最终发给那个被点击的View，没人处理就报废。

安卓手机区分屏幕触控，打开多点触控，就可以了。解答如下：

1、进入鲁大师应用界面。点击软件右下方工具箱。工具箱页面下滑可以看到有一个屏幕检测功能项，直接输入号MA的如何查找定位他人位置随时找到他，

2、进入屏幕检测功能，手机屏幕有四个检测项目，多点触控检测排在第三位，击进入，开始检测－点击屏幕开始，

3、在检测窗口，使用五个手指进行屏幕触控，检测结果出来了

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