HarmonyOSDevEco StudioNOTE05PageAbility生命周期的呈现

NOTE05：PageAbility生命周期的呈现

基本界面设置

创建Slice与对应xml

BarAbilitySlice

1.  
   package com.example.myapplication.slice;
2.  
   import com.example.myapplication.ResourceTable;
3.  
   import ohos.aafwk.ability.AbilitySlice;
4.  
   import ohos.aafwk.content.Intent;
5.  
   public class BarAbilitySlice extends AbilitySlice {
6.  
   @Override
7.  
   public void onStart(Intent intent) {
8.  
   super.onStart(intent);
9.  
   super.setUIContent(ResourceTable.Layout_ability_bar);
10.  
    }
11.  
     
12.  
    @Override
13.  
    public void onActive() {
14.  
    super.onActive();
15.  
    }
16.  
     
17.  
    @Override
18.  
    public void onForeground(Intent intent) {
19.  
    super.onForeground(intent);
20.  
    }
21.  
    }

FooAbilitySlice

1.  
   package com.example.myapplication.slice;
2.  
   import com.example.myapplication.ResourceTable;
3.  
   import ohos.aafwk.ability.AbilitySlice;
4.  
   import ohos.aafwk.content.Intent;
5.  
   public class FooAbilitySlice extends AbilitySlice{
6.  
   @Override
7.  
   public void onStart(Intent intent) {
8.  
   super.onStart(intent);
9.  
   super.setUIContent(ResourceTable.Layout_ability_foo);
10.  
    }
11.  
     
12.  
    @Override
13.  
    public void onActive() {
14.  
    super.onActive();
15.  
    }
16.  
     
17.  
    @Override
18.  
    public void onForeground(Intent intent) {
19.  
    super.onForeground(intent);
20.  
    }
21.  
    }

ability_bar.xml

1.  
   <?xml version="1.0" encoding="utf-8"?>
2.  
   <DirectionalLayout
3.  
   xmlns:ohos="http://schemas.huawei.com/res/ohos"
4.  
   ohos:height="match_parent"
5.  
   ohos:width="match_parent"
6.  
   ohos:alignment="center"
7.  
   ohos:orientation="vertical">
8.  
    
9.  
   <Text
10.  
    ohos:id="$ id:text_bar"
11.  
    ohos:height="match_content"
12.  
    ohos:width="match_content"
13.  
    ohos:background_element="$graphic:background_ability_main"
14.  
    ohos:layout_alignment="horizontal_center"
15.  
    ohos:text="The Page Is Bar!"
16.  
    ohos:text_size="40vp"
17.  
    />
18.  
     
19.  
    </DirectionalLayout>

ability_foo.xml

1.  
   <?xml version="1.0" encoding="utf-8"?>
2.  
   <DirectionalLayout
3.  
   xmlns:ohos="http://schemas.huawei.com/res/ohos"
4.  
   ohos:height="match_parent"
5.  
   ohos:width="match_parent"
6.  
   ohos:alignment="center"
7.  
   ohos:orientation="vertical">
8.  
    
9.  
   <Text
10.  
    ohos:id="$ id:text_foo"
11.  
    ohos:height="match_content"
12.  
    ohos:width="match_content"
13.  
    ohos:background_element="$graphic:background_ability_main"
14.  
    ohos:layout_alignment="horizontal_center"
15.  
    ohos:text="The Page Is Foo !"
16.  
    ohos:text_size="40vp"
17.  
    />
18.  
     
19.  
    </DirectionalLayout>

设置主页面

MainAbility

1.  
   package com.example.myapplication;
2.  
    
3.  
   import com.example.myapplication.slice.FooAbilitySlice;
4.  
   import com.example.myapplication.slice.MainAbilitySlice;
5.  
   import ohos.aafwk.ability.Ability;
6.  
   import ohos.aafwk.content.Intent;
7.  
    
8.  
   public class MainAbility extends Ability {
9.  
   @Override
10.  
    public void onStart(Intent intent) {
11.  
    super.onStart(intent);
12.  
    super.setMainRoute(FooAbilitySlice.class.getName());
13.  
    }
14.  
    }

跳转设置

BarAbilitySlice

1.  
   package com.example.myapplication.slice;
2.  
   import com.example.myapplication.ResourceTable;
3.  
   import ohos.aafwk.ability.AbilitySlice;
4.  
   import ohos.aafwk.content.Intent;
5.  
   import ohos.agp.components.Text;
6.  
    
7.  
   public class BarAbilitySlice extends AbilitySlice {
8.  
   @Override
9.  
   public void onStart(Intent intent) {
10.  
    super.onStart(intent);
11.  
    super.setUIContent(ResourceTable.Layout_ability_bar);
12.  
    Text text = findComponentById(ResourceTable.Id_text_bar);
13.  
    text.setClickedListener(listener -> present(new FooAbilitySlice(),new Intent()));
14.  
     
15.  
    }
16.  
     
17.  
    @Override
18.  
    public void onActive() {
19.  
    super.onActive();
20.  
    }
21.  
     
22.  
    @Override
23.  
    public void onForeground(Intent intent) {
24.  
    super.onForeground(intent);
25.  
    }
26.  
    }

FooAbilitySlice

1.  
   package com.example.myapplication.slice;
2.  
   import com.example.myapplication.ResourceTable;
3.  
   import ohos.aafwk.ability.AbilitySlice;
4.  
   import ohos.aafwk.content.Intent;
5.  
   import ohos.agp.components.Text;
6.  
    
7.  
   public class FooAbilitySlice extends AbilitySlice{
8.  
   @Override
9.  
   public void onStart(Intent intent) {
10.  
    super.onStart(intent);
11.  
    super.setUIContent(ResourceTable.Layout_ability_foo);
12.  
    Text text = findComponentById(ResourceTable.Id_text_foo);
13.  
    text.setClickedListener(listener -> present(new BarAbilitySlice(),new Intent()));
14.  
    }
15.  
     
16.  
    @Override
17.  
    public void onActive() {
18.  
    super.onActive();
19.  
    }
20.  
     
21.  
    @Override
22.  
    public void onForeground(Intent intent) {
23.  
    super.onForeground(intent);
24.  
    }
25.  
    }

重写生命周期方法

按下Crtl o选择你需要重写的方法

打印HiLog日志

FooAbilitySlice

1.  
   package com.example.myapplication.slice;
2.  
   import com.example.myapplication.ResourceTable;
3.  
   import ohos.aafwk.ability.AbilitySlice;
4.  
   import ohos.aafwk.content.Intent;
5.  
   import ohos.agp.components.Text;
6.  
   import ohos.hiviewdfx.HiLog;
7.  
   import ohos.hiviewdfx.HiLogLabel;
8.  
    
9.  
    
10.  
    public class FooAbilitySlice extends AbilitySlice{
11.  
    public static final HiLogLabel loglabel = new HiLogLabel(HiLog.LOG_APP,0x11102,"FooAbilitySlice");
12.  
    @Override
13.  
    public void onStart(Intent intent) {
14.  
    super.onStart(intent);
15.  
    super.setUIContent(ResourceTable.Layout_ability_foo);
16.  
    Text text = findComponentById(ResourceTable.Id_text_foo);
17.  
    text.setClickedListener(listener -> present(new BarAbilitySlice(),new Intent()));
18.  
    }
19.  
     
20.  
    @Override
21.  
    public void onActive() {
22.  
    HiLog.info(loglabel,"[xrilang]FooAbilitySlice onActive start");
23.  
    super.onActive();
24.  
    }
25.  
     
26.  
    @Override
27.  
    protected void onInactive() {
28.  
    HiLog.info(loglabel,"[xrilang]FooAbilitySlice onInactive start");
29.  
    super.onInactive();
30.  
    }
31.  
     
32.  
    @Override
33.  
    protected void onBackground() {
34.  
    HiLog.info(loglabel,"[xrilang]FooAbilitySlice onBackground start");
35.  
    super.onBackground();
36.  
    }
37.  
     
38.  
    @Override
39.  
    public void onForeground(Intent intent) {
40.  
    HiLog.info(loglabel,"[xrilang]FooAbilitySlice onForeground start");
41.  
    super.onForeground(intent);
42.  
    }
43.  
     
44.  
    @Override
45.  
    protected void onStop() {
46.  
    HiLog.info(loglabel,"[xrilang]FooAbilitySlice onstop start");
47.  
    super.onStop();
48.  
    }
49.  
    }

BarAbilitySlice

1.  
   package com.example.myapplication.slice;
2.  
   import com.example.myapplication.ResourceTable;
3.  
   import ohos.aafwk.ability.AbilitySlice;
4.  
   import ohos.aafwk.content.Intent;
5.  
   import ohos.agp.components.Text;
6.  
   import ohos.hiviewdfx.HiLog;
7.  
   import ohos.hiviewdfx.HiLogLabel;
8.  
    
9.  
   public class BarAbilitySlice extends AbilitySlice {
10.  
    public static final HiLogLabel loglabel = new HiLogLabel(HiLog.LOG_APP,0x11103,"BarAbilitySlice");
11.  
    @Override
12.  
    public void onStart(Intent intent) {
13.  
    super.onStart(intent);
14.  
    super.setUIContent(ResourceTable.Layout_ability_bar);
15.  
    Text text = findComponentById(ResourceTable.Id_text_bar);
16.  
    text.setClickedListener(listener -> present(new FooAbilitySlice(),new Intent()));
17.  
    }
18.  
    @Override
19.  
    public void onActive() {
20.  
    HiLog.info(loglabel,"[xrilang]BarAbilitySlice onActive start");
21.  
    super.onActive();
22.  
    }
23.  
     
24.  
    @Override
25.  
    protected void onInactive() {
26.  
    HiLog.info(loglabel,"[xrilang]BarAbilitySlice onInactive start");
27.  
    super.onInactive();
28.  
    }
29.  
     
30.  
    @Override
31.  
    protected void onBackground() {
32.  
    HiLog.info(loglabel,"[xrilang]BarAbilitySlice onBackground start");
33.  
    super.onBackground();
34.  
    }
35.  
     
36.  
    @Override
37.  
    protected void onStop() {
38.  
    HiLog.info(loglabel,"[xrilang]BarAbilitySlice onStop start");
39.  
    super.onStop();
40.  
    }
41.  
     
42.  
    @Override
43.  
    public void onForeground(Intent intent) {
44.  
    HiLog.info(loglabel,"[xrilang]BarAbilitySlice onForeground start");
45.  
    super.onForeground(intent);
46.  
    }
47.  
    }

可以在搜索处搜索tag、key、以及一些你想要的字符

分析HiLog日志