9.鸿蒙app用户界面的跳转abilityslice的跳转-编程知识

9.鸿蒙app用户界面的跳转abilityslice的跳转

9.用户界面的跳转abilityslice的跳转，值传递，数值累加

首页页面显示1，第2页显示2，再次点击返回首页3。。。

MainAbilitySlice.java

关键代码：

点击事件

 text.setClickedListener(new Component.ClickedListener() {@Overridepublic void onClick(Component component) {// present(new SecondAbilitySlice(),new Intent());Intent _intent = new Intent();_intent.setParam("count",count);presentForResult(new SecondAbilitySlice(),_intent,0x00101);}});}@Overrideprotected void onResult(int requestCode,Intent resultIntent){if(requestCode == 0x00101){count=resultIntent.getIntParam("count",1);text.setText("t1:" + ++count);}}

MainAbilitySlice.java

package com.example.myapplication.slice;import com.example.myapplication.ResourceTable;
import com.example.myapplication.slice.slice.SecondAbilitySlice;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.colors.RgbColor;
import ohos.agp.components.Component;
import ohos.agp.components.ComponentContainer;
import ohos.agp.components.DirectionalLayout;
import ohos.agp.components.Text;
import ohos.agp.components.element.ShapeElement;
import ohos.agp.utils.TextAlignment;public class MainAbilitySlice extends AbilitySlice {private  Text text;private int count =1;@Overridepublic void onStart(Intent intent) {super.onStart(intent);// super.setUIContent(ResourceTable.Layout_ability_main);ComponentContainer.LayoutConfig config = new ComponentContainer.LayoutConfig(ComponentContainer.LayoutConfig.MATCH_PARENT,ComponentContainer.LayoutConfig.MATCH_PARENT);DirectionalLayout layout= new DirectionalLayout(this);ShapeElement element = new ShapeElement();element.setRgbColor(new RgbColor(255,255,255));//白色layout.setBackground(element);layout.setLayoutConfig(config);//// Text text = new Text(this);text = new Text(this);text.setLayoutConfig(config);text.setTextAlignment(TextAlignment.CENTER);//text.setText("MainAbilitySlice");text.setText("t1:"+count);text.setTextSize(100);layout.addComponent(text);super.setUIContent(layout);text.setClickedListener(new Component.ClickedListener() {@Overridepublic void onClick(Component component) {// present(new SecondAbilitySlice(),new Intent());Intent _intent = new Intent();_intent.setParam("count",count);presentForResult(new SecondAbilitySlice(),_intent,0x00101);}});}@Overrideprotected void onResult(int requestCode,Intent resultIntent){if(requestCode == 0x00101){count=resultIntent.getIntParam("count",1);text.setText("t1:" + ++count);}}@Overridepublic void onActive() {super.onActive();}@Overridepublic void onForeground(Intent intent) {super.onForeground(intent);}
}

关键代码2：

点击事件

SecondAbilitySlice.java

 text.setClickedListener(new Component.ClickedListener() {@Overridepublic void onClick(Component component) {//present(new MainAbilitySlice(),new Intent());Intent resultintent = new Intent();resultintent.setParam("count",count);setResult(resultintent);terminate();}});

SecondAbilitySlice.java

package com.example.myapplication.slice.slice;import com.example.myapplication.ResourceTable;
import com.example.myapplication.slice.MainAbilitySlice;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.colors.RgbColor;
import ohos.agp.components.Component;
import ohos.agp.components.ComponentContainer;
import ohos.agp.components.DirectionalLayout;
import ohos.agp.components.Text;
import ohos.agp.components.element.ShapeElement;
import ohos.agp.utils.TextAlignment;public class SecondAbilitySlice extends AbilitySlice {private  Text text;private  Text text2;private int count;@Overridepublic void onStart(Intent intent) {super.onStart(intent);count =intent.getIntParam("count",1);count++;// super.setUIContent(ResourceTable.Layout_ability_main1);ComponentContainer.LayoutConfig config = new ComponentContainer.LayoutConfig(ComponentContainer.LayoutConfig.MATCH_PARENT,ComponentContainer.LayoutConfig.MATCH_CONTENT);DirectionalLayout layout= new DirectionalLayout(this);DirectionalLayout layout2= new DirectionalLayout(this);ShapeElement element = new ShapeElement();element.setRgbColor(new RgbColor(100,100,255));//浅蓝色layout.setBackground(element);layout.setLayoutConfig(config);// element.setRgbColor(new RgbColor(100,255,255));//// layout2.setBackground(element);//text = new Text(this);text2 = new Text(this);text.setLayoutConfig(config);text.setTextAlignment(TextAlignment.CENTER);text2.setLayoutConfig(config);text2.setTextAlignment(TextAlignment.CENTER);// text.setText("SecondAbilitySlice");text.setText(""+count);text2.setText("t2:"+count);text.setTextSize(100);text2.setTextSize(100);layout.addComponent(text);layout.addComponent(text2);super.setUIContent(layout);//  super.setUIContent(layout2);text.setClickedListener(new Component.ClickedListener() {@Overridepublic void onClick(Component component) {//present(new MainAbilitySlice(),new Intent());Intent resultintent = new Intent();resultintent.setParam("count",count);setResult(resultintent);terminate();}});}@Overridepublic void onActive() {super.onActive();}@Overridepublic void onForeground(Intent intent) {super.onForeground(intent);}
}