【HarmonyOS】【DevEco Studio】NOTE05：PageAbility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

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
public class BarAbilitySlice extends AbilitySlice {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_bar);
    }

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

FooAbilitySlice

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
public class FooAbilitySlice extends AbilitySlice{
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_foo);
    }

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

ability_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:alignment="center"
    ohos:orientation="vertical">

    <Text
        ohos:id="$+id:text_bar"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="The Page Is Bar!"
        ohos:text_size="40vp"
        />

</DirectionalLayout>

ability_foo.xml

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:alignment="center"
    ohos:orientation="vertical">

    <Text
        ohos:id="$+id:text_foo"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="The Page Is Foo !"
        ohos:text_size="40vp"
        />

</DirectionalLayout>

设置主页面

MainAbility

package com.example.myapplication;

import com.example.myapplication.slice.FooAbilitySlice;
import com.example.myapplication.slice.MainAbilitySlice;
import ohos.aafwk.ability.Ability;
import ohos.aafwk.content.Intent;

public class MainAbility extends Ability {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setMainRoute(FooAbilitySlice.class.getName());
    }
}

跳转设置

BarAbilitySlice

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Text;

public class BarAbilitySlice extends AbilitySlice {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_bar);
            Text text = findComponentById(ResourceTable.Id_text_bar);
            text.setClickedListener(listener -> present(new FooAbilitySlice(),new Intent()));

    }

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

FooAbilitySlice

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Text;

public class FooAbilitySlice extends AbilitySlice{
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_foo);
        Text text = findComponentById(ResourceTable.Id_text_foo);
        text.setClickedListener(listener -> present(new BarAbilitySlice(),new Intent()));
    }

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

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

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Text;
import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;


public class FooAbilitySlice extends AbilitySlice{
    public static final HiLogLabel loglabel = new HiLogLabel(HiLog.LOG_APP,0x11102,"FooAbilitySlice");
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_foo);
        Text text = findComponentById(ResourceTable.Id_text_foo);
        text.setClickedListener(listener -> present(new BarAbilitySlice(),new Intent()));
    }

    @Override
    public void onActive() {
        HiLog.info(loglabel,"[xrilang]FooAbilitySlice onActive start");
        super.onActive();
    }

    @Override
    protected void onInactive() {
        HiLog.info(loglabel,"[xrilang]FooAbilitySlice onInactive start");
        super.onInactive();
    }

    @Override
    protected void onBackground() {
        HiLog.info(loglabel,"[xrilang]FooAbilitySlice onBackground start");
        super.onBackground();
    }

    @Override
    public void onForeground(Intent intent) {
        HiLog.info(loglabel,"[xrilang]FooAbilitySlice onForeground start");
        super.onForeground(intent);
    }

    @Override
    protected void onStop() {
        HiLog.info(loglabel,"[xrilang]FooAbilitySlice onstop start");
        super.onStop();
    }
}

BarAbilitySlice

package com.example.myapplication.slice;
import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.components.Text;
import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;

public class BarAbilitySlice extends AbilitySlice {
    public static final HiLogLabel loglabel = new HiLogLabel(HiLog.LOG_APP,0x11103,"BarAbilitySlice");
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_bar);
            Text text = findComponentById(ResourceTable.Id_text_bar);
            text.setClickedListener(listener -> present(new FooAbilitySlice(),new Intent()));
    }
    @Override
    public void onActive() {
        HiLog.info(loglabel,"[xrilang]BarAbilitySlice onActive start");
        super.onActive();
    }

    @Override
    protected void onInactive() {
        HiLog.info(loglabel,"[xrilang]BarAbilitySlice onInactive start");
        super.onInactive();
    }

    @Override
    protected void onBackground() {
        HiLog.info(loglabel,"[xrilang]BarAbilitySlice onBackground start");
        super.onBackground();
    }

    @Override
    protected void onStop() {
        HiLog.info(loglabel,"[xrilang]BarAbilitySlice onStop start");
        super.onStop();
    }

    @Override
    public void onForeground(Intent intent) {
        HiLog.info(loglabel,"[xrilang]BarAbilitySlice onForeground start");
        super.onForeground(intent);
    }
}