Android studio基础练习06PoolWater-觅稀奇MeXiQi.COM

一、结构搭建

二、代码实现

activity_main.xml

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

tools:context=".MainActivity">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="3"

android:orientation="horizontal">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

android:gravity="center_horizontal"

android:orientation="vertical">

<Button

android:id="@id/btn_incInput"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:onClick="onCtrlValve"

android:text="增加进水口"/>

<Button

android:id="@id/btn_decInput"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:onClick="onCtrlValve"

android:text="减少进水口"/>

<TextView

android:id="@id/tv_numInput"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="0"

android:textColor="#0000FF"

android:textSize="30sp"/>

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

android:gravity="center_horizontal"

android:orientation="vertical">

<Button

android:id="@id/btn_incOutput"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:onClick="onCtrlValve"

android:text="增加出水口"/>

<Button

android:id="@id/btn_decOutput"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:onClick="onCtrlValve"

android:text="减少出水口"/>

<TextView

android:id="@id/tv_numOutput"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="0"

android:textColor="#FF0000"

android:textSize="30sp"/>

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="2"

android:gravity="top|center_horizontal">

<ProgressBar

android:id="@id/progressBar"

style="@android:style/Widget.ProgressBar.Horizontal"

android:layout_width="match_parent"

android:layout_height="20dp"

android:layout_margin="10dp"/>

</LinearLayout>

MainActivity

packagecom.suke.poolwater;

importandroidx.annotation.NonNull;

importandroidx.appcompat.app.AppCompatActivity;

importandroid.os.Bundle;

importandroid.os.Handler;

importandroid.os.Message;

importandroid.view.View;

importandroid.widget.ProgressBar;

importandroid.widget.TextView;

importjava.util.ArrayList;

publicclassMainActivityextendsAppCompatActivity{

privateintwater_count=0;

privateTextViewtv_numInput,tv_numOutput;

privateProgressBarbar;

privateArrayList<ValveThread>InputThreads,OutputThreads;

@Override

protectedvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

tv_numInput=findViewById(R.id.tv_numInput);

tv_numOutput=findViewById(R.id.tv_numOutput);

bar=findViewById(R.id.progressBar);

InputThreads=newArrayList<>();

OutputThreads=newArrayList<>();

}

privateHandlerhdl_main=newHandler(){

@Override

publicvoidhandleMessage(@NonNullMessagemsg){

if(msg.what==ValveThread.WATER_INPUT){

water_count;

}elseif(msg.what==ValveThread.WATER_OUTPUT){

water_count--;

}

bar.setProgress(water_count);

super.handleMessage(msg);

}

};

publicvoidonCtrlValve(Viewview){

ValveThreadt=null;

switch(view.getId()){

caseR.id.btn_incInput:

t=newValveThread(InputThreads.size(),200,ValveThread.WATER_INPUT,hdl_main);

InputThreads.add(t);

t.start();

break;

caseR.id.btn_decInput:

t=InputThreads.remove(InputThreads.size()-1);

t.close();

break;

caseR.id.btn_incOutput:

t=newValveThread(OutputThreads.size(),200,ValveThread.WATER_OUTPUT,hdl_main);

OutputThreads.add(t);

t.start();

break;

caseR.id.btn_decOutput:

t=OutputThreads.remove(OutputThreads.size()-1);

t.close();

break;

}

//更新界面上阀门的数量

tv_numInput.setText(InputThreads.size()"");

tv_numOutput.setText(OutputThreads.size()"");

}

ValveThread

packagecom.suke.poolwater;

importandroid.os.Handler;

importandroid.os.Message;

publicclassValveThreadextendsThread{

publicstaticfinalintWATER_INPUT=1;

publicstaticfinalintWATER_OUTPUT=2;

privateintid;

privatelongms;

privateintctrl_what;

privatebooleanclosed;

privateHandlerhdl;

publicValveThread(intid,longms,intctrl_what,Handlerhandler){

this.id=id;

this.ms=ms;

this.ctrl_what=ctrl_what;

this.hdl=handler;

this.closed=false;

}

//关闭阀门

publicvoidclose(){

this.closed=true;

}

@Override

publicvoidrun(){

while(!closed){

//todo向消息队列发送进水或出水的消息

Messagemsg=Message.obtain();

msg.what=ctrl_what;

msg.arg1=id;

//todo向主线程发送msg

hdl.sendMessage(msg);

try{

sleep(ms);

}catch(InterruptedExceptione){

e.printStackTrace();

}

super.run();

}

Android studio基础练习06PoolWater

一、结构搭建

二、代码实现

activity_main.xml

MainActivity

ValveThread

三、执行效果