很急，android中定位满足一定条件后后开启另一个活动

Question

android对话框gps

Answer 1

 locationmanager=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria=new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(POWER_LOW);
provider=locationmanager.getBestProvider(criteria, true);
location=locationmanager.getLastKnownLocation(provider);
boolean sl=updateWithNewLocation(location);
locationmanager.requestLocationUpdates(provider, 1000, 0.0f, locationListener);//locationlistener已经实现过了，没贴出来
handler.post(new Runnable(){
public void run(){
panduan(location);
Log.i(tag, "弹出dialog");
}
});
protected boolean updateWithNewLocation(Location location) {
// TODO Auto-generated method stub
boolean bl=false;
mylocationText0=(TextView)findViewById(R.id.mylocationtext0);
mylocationText1=(TextView)findViewById(R.id.mylocationtext1);
mylocationText=(TextView)findViewById(R.id.mylocationtext2);
mylocationText2=(TextView)findViewById(R.id.mylocationtext3);
if(location!=null){
double log=location.getLongitude();
double lat=location.getLatitude();
mylocationText0.setText("您现在处于纬度："+lat+"\n");
mylocationText1.setText("您现在处于经度："+log+"\n");
double lat_dsn=34.24970526326096;
double log_dsn=108.98116439580917;
double distance=getDistance(lat, log, lat_dsn, log_dsn);
//double distance1=distance(x, y);
mylocationText.setText("您距离目的地还有："+distance+"米");
if(isArrived(distance)){
/*
 * 弹出一个对话框选择后加载minimap
 */
//new Thread().start();
//locationmanager.removeUpdates(locationListener);
//Dialog myDialog=dialog(this);
//myDialog.show();//此时停止当前线程
bl=true;
}else{
mylocationText2.setText("您正在接近目的地");
}
}else{
//Dialog myDialog=dialog(this);
//myDialog.show();
mylocationText2.setText("获取信息失败，网络未连接！");
bl=true;
}
return bl;}
private boolean isArrived(double distance) {
if((distance<50)&&(distance>20)){
Toast.makeText(MapActivity.this, "您已经离目的地很近了",Toast.LENGTH_SHORT).show();
return false;
}if(distance<20){
mylocationText2.setText("您已经到达目的地，是否进入minimap？");
return true;
}else{
return false;
}
}
private Dialog dialog(Context context){
AlertDialog.Builder builder=new AlertDialog.Builder(context);
builder.setTitle("minimap indicates");
builder.setMessage("您已经到达目的地，是否进入minimap");
builder.setIcon(R.drawable.ic_launcher);
builder.setPositiveButton("取消",new DialogInterface.OnClickListener() {@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stubdialog.dismiss();}
});
builder.setNegativeButton("确定",new DialogInterface.OnClickListener() {@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
flag=false;
Intent intent=new Intent(MapActivity.this, minimapActivity.class);
startActivity(intent);}
});
return builder.create();
}
public void panduan(Location location){
    
     if(updateWithNewLocation(location)){  
      Dialog myDialog=dialog(this);
      myDialog.show();
      Log.i(tag, "出现了吧dialog？");   
     }
    }让别人帮你看，你带也贴规范点儿啊，这一大坨的。目测应该是下面这段代码在反复执行，这段代码是怎么调用的？
handler.post(new Runnable(){
public void run(){
panduan(location);
Log.i(tag, "弹出dialog");
}
});

Answer 2

多谢四楼  后来我是这样解决的  
本人才学半个月 比较菜  见谅 下次贴代码用notepad贴