android 代码打开gps

跳转到设置界面手动打开

Intent myIntent = new Intent(Settings.ACTION_SECURITY_SETTINGS ); 

startActivity(myIntent);

直接代码打开

Intent gpsIntent = new Intent();

gpsIntent.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");

gpsIntent.addCategory("android.intent.category.ALTERNATIVE");

gpsIntent.setData(Uri.parse("custom:3"));

try {

    PendingIntent.getBroadcast(GPSTestActivity.this, 0, gpsIntent, 0).send();

} catch (CanceledException e) {

    e.printStackTrace();

}