如何从 GPS 设置窗口返回我的活动

问题描述

我的 Activity 出现问题，它可以控制 android 移动 GPS 设置以让用户打开/关闭 GPS，但我无法返回我的 Activity.当我按下后退按钮时，它会直接进入手机的主页，而不是从我向设置发送信号的地方返回我的活动.谁能告诉我解决办法.

I am having a problem in my Activity, which can take the control to the android mobile GPS settings to have user to switch on/off the GPS, But I am unable to retrun back to my activity. when I press back button, It is directly going to Home of the mobile, not coming back my Activity from where I send signal to settings. can anyone tell me the solution for this.

if(!lm.isProviderEnabled(LocationManager.GPS_PROVIDER )) { 
    startActivityForResult(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS), 1);

<小时>

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Log.e("","OnActivity Result...");
    super.onActivityResult(requestCode, resultCode, data);

    if (resultCode == GPS_LOC) {
       switch (requestCode) {
          case GPS_LOC:
              //super.onCreate(inst);
              super.onResume();
              //super.finish();
           break;
        }
     }  
 }

推荐答案

适合我.您确定您的清单中设置了 ACCESS_FINE_LOCATION 权限吗?你确定正在调用 startActivityForResult() 吗?

Works for me. Are you sure you have ACCESS_FINE_LOCATION permission set in your manifest? Are you sure startActivityForResult() is being called?

另外，什么是 GPS_LOC?

Also, what is GPS_LOC?

这是我的有效代码:

public class main extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        findViewById(R.id.button1).setOnClickListener( new OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivityForResult(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS), 1);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == 1) {
           switch (requestCode) {
              case 1:
               break;
            }
         }  
     }
}

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