如何提高加载活动的速度？

I am developing an Android application and it uses GoogleMaps. So when I click on a Button, I load a registraPosizioneActivity that shows the google maps. So I have noted that the loading speed of this activity is slow. Is there a mode for increasing the speed of loading this activity?

我正在开发一个Android应用程序,它使用GoogleMaps。因此,当我点击按钮时,我会加载一个显示谷歌地图的registraPosizioneActivity。所以我注意到这项活动的加载速度很慢。是否有提高此活动加载速度的模式?

This is my code:

这是我的代码:

         protected void onCreate(Bundle savedInstanceState) {
            try{
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_recordposition);
                locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
                Criteria criteria = new Criteria();
                criteria.setAccuracy(Criteria.ACCURACY_FINE);
                provider = locationManager.getBestProvider(criteria, false);
                locationManager.requestLocationUpdates(provider, 1000, 0, this);
                settaMappa();
                if(myPosition==null){
                    pDialog = ProgressDialog.show(this, "Attendere ...", "Localizzazione in corso ...", true);
                    pDialog.setCancelable(false);
                }
            }catch(Exception e){
                Log.e("Errore onCreate:",e.getMessage());
                Utility.generateNoteOnSD(fileName,e.getMessage());
            }
        }

       public void settaMappa(){
            mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map2)).getMap();
            mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
            mMap.setMyLocationEnabled(true);
        }

This is activity_recordposition.xml

这是activity_recordposition.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
    android:orientation="vertical"
    tools:context=".registraPosizioneActivity"
    android:gravity="center">


    <fragment 
      android:name="com.google.android.gms.maps.SupportMapFragment"
      android:id="@+id/map2"
      android:layout_height="0dp"
      android:layout_weight="10"
      android:layout_width="match_parent"
      class="com.google.android.gms.maps.SupportMapFragment"
      />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="horizontal" >

        <Button
        android:id="@+id/buttonR"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="0.20"
        android:layout_margin="20dp"
        android:background="#0080c2"
        android:textColor="#FFF"
        android:textSize="20sp"
        android:onClick="registraPunto"
        android:text="@string/registraPunto" />

    <Button
        android:id="@+id/buttonSava"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="0.20"
        android:layout_margin="20dp"
        android:background="#0080c2"
        android:textColor="#FFF"
        android:textSize="20sp"
        android:onClick="savaAreaTracciata"
        android:text="@string/terminaRegistrazione" />
    </LinearLayout>

1 个解决方案

#1

To me it seems like you're doing a lot of processing in the onCreate method. Try moving some of this processing into an Async thread. I believe that will increase load times by a lot.

对我而言,似乎你在onCreate方法中进行了大量处理。尝试将此处理中的一部分移动到异步线程中。我相信这会增加很多加载时间。

So,

Load up the activity, within the onCreate start an Async task

加载活动,在onCreate中启动异步任务

Async thread does the processing required after the activity has loaded :)

异步线程执行活动加载后所需的处理:)

#1