我正在开发一款使用Google Play服务的应用.在某些手机上,客户端为位置返回null.发生这种情况是因为在Google设置中未启用locaiton选项,如附带的图片中所示.
如何编程检查Android应用程序中是否启用了谷歌设置位置？
http://www.cnet.com/how-to/explaining-the-google-settings-icon-on-your-android-device/
解决方法
LocationManager lm = null;
boolean gps_enabled,network_enabled;
if(lm==null)
lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
try{
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
}catch(Exception ex){}
try{
network_enabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}catch(Exception ex){}
if(!gps_enabled && !network_enabled){
dialog = new AlertDialog.Builder(context);
dialog.setMessage(context.getResources().getString(R.string.gps_network_not_enabled));
dialog.setPositiveButton(context.getResources().getString(R.string.open_location_settings),new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface paramDialogInterface,int paramInt) {
// TODO Auto-generated method stub
Intent myIntent = new Intent( Settings.ACTION_LOCATION_SOURCE_SETTINGS);
context.startActivity(myIntent);
//get gps
}
});
dialog.setNegativeButton(context.getString(R.string.Cancel),int paramInt) {
// TODO Auto-generated method stub
}
});
dialog.show();
}
