Java 如何在 Android Cupcake 中以编程方式启用 GPS
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How to programmatically enable GPS in Android Cupcake
提问by Chiwai Chan
I'm currently writing an app in Android that works with the GPS. At the moment I'm able to work out whether the GPS is enabled. My problem is that I want to enable the GPS on app startup if it is disabled. How can I do this programmaticaly?
我目前正在 Android 中编写一个与 GPS 配合使用的应用程序。目前我可以确定是否启用了 GPS。我的问题是，如果 GPS 被禁用，我想在应用程序启动时启用 GPS。我怎样才能以编程方式做到这一点？
采纳答案by CommonsWare
You can't, starting with Android 1.5. The most you can do is pop open the activity to allow the user to toggle it on/off. Use the action held in android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGSto craft an Intent to open this activity.
你不能，从 Android 1.5 开始。您最多能做的就是弹出打开活动以允许用户打开/关闭它。使用所持有的行动android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS来制作一个意图来打开这个活动。
回答by TS.xy
if(!LocationManager.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER ))
{
Intent myIntent = new Intent( Settings.ACTION_SECURITY_SETTINGS );
startActivity(myIntent);
}
回答by Leticia
if your question is at the user level of android these properties are located in: "Settings -> Location -> Use wireless networks" -> "Settings -> Location -> Use GPS satellites".
如果您的问题是在 android 的用户级别，这些属性位于："Settings -> Location -> Use wireless networks" -> "Settings -> Location -> Use GPS satellites"。
But at the developer can use the class "android.provider.Settings.Secure"with the appropriate permissions.
但是在开发人员可以使用"android.provider.Settings.Secure"具有适当权限的类。
回答by icyerasor
You might use the following:
您可能会使用以下内容：
try {
Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, true);
} catch (Exception e) {
logger.log(Log.ERROR, e, e.getMessage());
}
but it will only work if you have system signature protection level. So you need to cook your own Image to actually use it :/
但它只有在您具有系统签名保护级别时才有效。所以你需要烹饪自己的图像才能实际使用它：/
回答by Dwivedi Ji
This method code can be help for you
此方法代码可以为您提供帮助
private void turnGPSOnOff(){
String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if(!provider.contains("gps")){
final Intent poke = new Intent();
poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
poke.setData(Uri.parse("3"));
sendBroadcast(poke);
//Toast.makeText(this, "Your GPS is Enabled",Toast.LENGTH_SHORT).show();
}
}
回答by Greg Ennis
You should use the Location Settings Dialogin Play Services that prompts the user to enable location services (if necessary) with just one click.
您应该使用Play 服务中的位置设置对话框，提示用户只需单击一下即可启用位置服务（如有必要）。
回答by yubaraj poudel
First check whether the location service is already on or not ??
首先检查定位服务是否已经开启？？
Checking location service is enabled or not
检查位置服务是否启用
public boolean isLocationServiceEnabled(){
LocationManager locationManager = null;
boolean gps_enabled= false,network_enabled = false;
if(locationManager ==null)
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
try{
gps_enabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
}catch(Exception ex){
//do nothing...
}
try{
network_enabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}catch(Exception ex){
//do nothing...
}
return gps_enabled || network_enabled;
}
Then finally to open if location service in turned off previously
如果之前关闭定位服务，最后打开
if (isLocationServiceEnabled())) {
//DO what you need...
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Seems Like location service is off, Enable this to show map")
.setPositiveButton("YES", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
}).setNegativeButton("NO THANKS", null).create().show();
}
