打开和关闭GPS编程方式在安卓4.0及以上？

问题描述：

您好，我建立一个防盗应用程序，并通过短信查找我的手机，它完美的作品，直到2.3。但在4.0我不能打开或关闭GPS编程有通过code对GPS切换其他任何可能的方式。

Hi there i am creating an anti-theft application and, locating my phone through sms and it works perfectly until 2.3. But in 4.0 i cant turn on or off gps programmatically is there any other possible way to switch on gps through code.

答

尝试使用这种code。它为我工作的所有版本。

Try using this code. It worked for me on all the versions.

public void turnGPSOn()
{
     Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
     intent.putExtra("enabled", true);
     this.ctx.sendBroadcast(intent);

    String provider = Settings.Secure.getString(ctx.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
    if(!provider.contains("gps")){ //if gps is disabled
        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")); 
        this.ctx.sendBroadcast(poke);


    }
}
// automatic turn off the gps
public void turnGPSOff()
{
    String provider = Settings.Secure.getString(ctx.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
    if(provider.contains("gps")){ //if gps is enabled
        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")); 
        this.ctx.sendBroadcast(poke);
    }
}

打开和关闭GPS编程方式在安卓4.0及以上？

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