Question

可能重复：
Programmatically find device support GPS or not?

如何检查设备上是否有GPS？

当我尝试使用下一个代码时

PackageManager pm = context.getPackageManager();
boolean hasGps = pm.hasSystemFeature(PackageManager.FEATURE_LOCATION);

if (hasGps) {
    Log.d("TAG", "HAS GPS");
} else {
    Log.d("TAG", "HAS NOT GPS");
}

我总是得到HAS GPS，但我的Archos 101IT没有GPS模块。有没有办法检查硬件GPS的可用性？

Answer 1

使用此代码

boolean hasGps = pm.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS);

如果您的设备已嵌入GPS硬件但未启用它，请使用以下代码动态启用它，

LocationManager manager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
if(!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
    //Ask the user to enable GPS
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("Location Manager");
    builder.setMessage("Would you like to enable GPS?");
    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            //Launch settings, allowing user to make a change
            Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
            startActivity(i);
        }
    });
    builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            //No location service, no Activity
            finish();
        }
    });
    builder.create().show();
}

您可以致电LocationManager.getAllProviders()并检查列表中是否包含LocationManager.GPS_PROVIDER。

否则您只需使用此代码即可 LocationManager.isProviderEnabled(String provider)方法。

如果您的设备中没有GPS，则返回false

Answer 2

可以像调用任何其他活动一样调用android系统GPS设置屏幕：

startActivityForResult(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS), 0);

要检查GPS可用性，请使用以下代码：

（Activity必须实现LocationListener）

LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L,1.0f, this);
boolean isGPS = locationManager.isProviderEnabled (LocationManager.GPS_PROVIDER);

Android检查设备上的GPS可用性

2 个答案: