android - 如何提示用户打开位置？

Question

我有一个应用程序，当我们点击一​​个按钮时，该应用程序会启动带有搜索查询的谷歌地图。但我需要打开位置才能提供准确的结果。可能吗？

Answer 1

我明白你的问题这是应该添加到您的 onCreate 方法中的代码

LocationManager lm = (LocationManager) getSystemService(LOCATION_SERVICE);
    if (!lm.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
            !lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
        // Build the alert dialog
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Location Services Not Active");
        builder.setMessage("Please enable Location Services and GPS");
        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialogInterface, int i) {
                // Show location settings when the user acknowledges the alert dialog
                Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                startActivity(intent);
            }
        });
        Dialog alertDialog = builder.create();
        alertDialog.setCanceledOnTouchOutside(false);
        alertDialog.show();
    }