对控件的控制（2月5号，2月6号）

这两天系统学习了对大部分基本控件得控制，今天做了一个系统的控件控制，先把代码发表一下，随后由上而下功能分讲。

MainActivity：

package com.example.controlmode;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RadioGroup;
import android.widget.RatingBar;
import android.widget.SeekBar;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;

import org.w3c.dom.Text;

public class MainActivity extends AppCompatActivity {
    String TAG;
TextView display;
Button button1,button2,button3;
Switch switch1;
ProgressBar progressBar;
EditText editText;
RadioGroup radioGroup;
ImageView imageView;
SeekBar seekBar;
CheckBox checkBoxyuwen,checkBoxyingyu,checkBoxshuxue;
RatingBar ratingBar;
    String yuwen = "";
    String yingyu = "";
    String shuxue= "";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        display = findViewById(R.id.textView1);
        button1  = findViewById(R.id.button);
        button2 = findViewById(R.id.button2);
        button3 = findViewById(R.id.button3);
        switch1 = findViewById(R.id.switch1);
        progressBar = findViewById(R.id.progressBar3);
        editText = findViewById(R.id.editText2);
        radioGroup = findViewById(R.id.group);
        imageView = findViewById(R.id.imageView);
        seekBar = findViewById(R.id.seekBar2);
        checkBoxyingyu= findViewById(R.id.checkBox);
        checkBoxyuwen = findViewById(R.id.checkBox2);
        checkBoxshuxue = findViewById(R.id.checkBox3);
        ratingBar = findViewById(R.id.ratingBar);

        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                display.setText(R.string.button1);
            }
        });
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                display.setText(R.string.button2);
            }
        });
       switch1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
           @Override
           public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
               if(isChecked){
                   display.setText("打开");
               }else{
                   display.setText("关闭");
               }
           }
       });
       button3.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
               String s = editText.getText().toString();
               if(TextUtils.isEmpty(s)){
                 s="0";
               }
               progressBar.setProgress(Integer.valueOf(s));
               display.setText(s);
           }
       });
       radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
           @Override
           public void onCheckedChanged(RadioGroup group, int checkedId) {
               if(checkedId==R.id.radioButton4){
                   imageView.setImageResource(R.drawable.a);
               }
               else{
                   imageView.setImageResource(R.drawable.b);
               }
           }
       });
       seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
           @Override
           public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
               display.setText(String.valueOf(progress));
           }

           @Override
           public void onStartTrackingTouch(SeekBar seekBar) {

           }

           @Override
           public void onStopTrackingTouch(SeekBar seekBar) {

           }
       });
       checkBoxyingyu.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
           @Override
           public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
               if(isChecked){
                   yingyu = "英语";
               }else{
                   yingyu = " ";
               }
               display.setText(yingyu+yuwen+shuxue);
           }

       });
        checkBoxshuxue.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    shuxue = "数学";
                }else{
                    shuxue = " ";
                }
                display.setText(yingyu+yuwen+shuxue);
            }
        });
        checkBoxyuwen.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    yuwen = "语文";
                }else{
                    yuwen = " ";
                }
                display.setText(yingyu+yuwen+shuxue);
            }
        });
        ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
                Toast.makeText(getApplicationContext(),String.valueOf(rating),Toast.LENGTH_LONG).show();
            }
        });
    }
}

activity：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_alignParentStart="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:layout_alignParentEnd="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentBottom="true"
    android:isScrollContainer="true"
    tools:context=".MainActivity">

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="46dp" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:isScrollContainer="true"
        android:keepScreenOn="true"
        android:orientation="vertical"
        app:layout_constraintGuide_begin="205dp" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/textview"
        android:textSize="30sp"
        app:layout_constraintBottom_toTopOf="@+id/guideline"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toTopOf="@+id/guideline" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="103dp" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button1"
        app:layout_constraintBottom_toTopOf="@+id/guideline3"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline3" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button2"
        app:layout_constraintBottom_toTopOf="@+id/guideline3"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toTopOf="@+id/guideline3" />

    <Switch
        android:id="@+id/switch1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:text="@string/switch1"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toBottomOf="@+id/button" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="205dp"
        android:layout_marginRight="205dp"
        android:orientation="horizontal"
        app:layout_constraintEnd_toStartOf="@+id/progressBar2"
        app:layout_constraintGuide_begin="211dp"
        app:layout_constraintStart_toStartOf="parent" />

    <ProgressBar
        android:id="@+id/progressBar"
        style="?android:attr/progressBarStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/guideline4"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline4" />

    <ProgressBar
        android:id="@+id/progressBar2"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:indeterminate="true"
        app:layout_constraintBottom_toTopOf="@+id/guideline4"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/guideline4"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toTopOf="@+id/guideline4" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="485dp" />

    <SeekBar
        android:id="@+id/seekBar2"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/guideline5"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline5" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="291dp" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:autofillHints=""
        android:ems="10"
        android:hint="@string/edittext"
        android:inputType="number"
        app:layout_constraintBottom_toTopOf="@+id/guideline6"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline6" />

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button3"
        app:layout_constraintBottom_toTopOf="@+id/guideline6"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toTopOf="@+id/guideline6" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="367dp" />

    <RadioGroup
        android:id="@+id/group"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/guideline8"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline8">

        <RadioButton
            android:id="@+id/radioButton4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="@string/radiobutton1" />

        <RadioButton
            android:id="@+id/radioButton3"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/radiobutton2" />
    </RadioGroup>

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline8"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="431dp" />

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:contentDescription="@string/img"
        app:layout_constraintBottom_toTopOf="@+id/guideline8"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toTopOf="@+id/guideline8"
        app:srcCompat="@drawable/a" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline9"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="255dp" />

    <ProgressBar
        android:id="@+id/progressBar3"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/guideline9"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline9" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline10"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="528dp" />

    <CheckBox
        android:id="@+id/checkBox"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/box1"
        app:layout_constraintBottom_toTopOf="@+id/guideline10"
        app:layout_constraintEnd_toStartOf="@+id/checkBox2"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline10" />

    <CheckBox
        android:id="@+id/checkBox2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/box2"
        app:layout_constraintBottom_toTopOf="@+id/guideline10"
        app:layout_constraintEnd_toStartOf="@+id/checkBox3"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/checkBox"
        app:layout_constraintTop_toTopOf="@+id/guideline10" />

    <CheckBox
        android:id="@+id/checkBox3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/box3"
        app:layout_constraintBottom_toTopOf="@+id/guideline10"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@+id/guideline2"
        app:layout_constraintTop_toTopOf="@+id/guideline10" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline11"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="593dp" />

    <RatingBar
        android:id="@+id/ratingBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@+id/guideline11"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/guideline11" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline12"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_begin="668dp" />

</androidx.constraintlayout.widget.ConstraintLayout>

strings.xml:

<resources>
    <string name="app_name">Control mode</string>
    <string name="textview">cosplay</string>
    <string name="button1">左边</string>
    <string name="button2">右边</string>
    <string name="switch1">Switch</string>
    <string name="button3">确定</string>
    <string name="radiobutton1">女生</string>
    <string name="radiobutton2">男生</string>
    <string name="edittext">请输入值</string>
    <string name="img">img</string>

    <string name="box1">英语</string>
    <string name="box2">语文</string>
    <string name="box3">数学</string>
</resources>

安卓布局：

点击“左边”“右边”按钮，显示左边右边：

 Switch:打开显示“打开”，关闭显示“关闭”。

数字输入框：输入数字，在上方的进度条中加载到相应的位置，在最上方的Viewtext上显示数字。

 点击单选框，显示相应的图片：

 

 拉下方的加载条，在上方显示出比例数字：

 点击多选框，显示选中选框的内容：

 点击星星评分：

这两天学习的都运用到了这次的开发之中，昨天因为学习的知识点太碎就没有发表博客，今天和昨天的一起发表。