Android第9周练习 

  1 <?xml version="1.0" encoding="utf-8"?>
  2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3     xmlns:tools="http://schemas.android.com/tools"
  4     android:layout_width="match_parent"
  5     android:layout_height="match_parent"
  6     android:orientation="vertical"
  7     tools:context=".MainActivity">
  8 
  9     <LinearLayout
 10         android:id="@+id/ll_id"
 11         android:layout_width="match_parent"
 12         android:layout_height="wrap_content"
 13         android:layout_marginLeft="20dp"
 14         android:layout_marginTop="100dp"
 15         android:layout_marginRight="20dp">
 16 
 17         <TextView
 18             android:id="@+id/tv_id1"
 19             android:layout_width="wrap_content"
 20             android:layout_height="wrap_content"
 21             android:text="用户名："
 22 
 23             android:textSize="30sp" />
 24 
 25         <EditText
 26             android:id="@+id/et_id"
 27             android:layout_width="match_parent"
 28             android:layout_height="wrap_content"
 29             android:hint="请输入用户名"
 30             android:minLines="1" />
 31 
 32     </LinearLayout>
 33 
 34     <LinearLayout
 35         android:id="@+id/ll_pass"
 36         android:layout_width="match_parent"
 37         android:layout_height="wrap_content"
 38         android:layout_below="@id/ll_id"
 39         android:layout_marginLeft="20dp"
 40         android:layout_marginTop="20dp"
 41         android:layout_marginRight="20dp">
 42 
 43         <TextView
 44             android:id="@+id/tv_pass"
 45             android:layout_width="wrap_content"
 46             android:layout_height="wrap_content"
 47             android:layout_marginLeft="30dp"
 48             android:text="密码："
 49             android:textSize="30sp" />
 50 
 51         <EditText
 52             android:id="@+id/et_pass"
 53             android:layout_width="match_parent"
 54             android:layout_height="wrap_content"
 55             android:hint="请输入密码 "
 56             android:password="true"
 57             android:minLines="1" />
 58 
 59     </LinearLayout>
 60 
 61     <TextView
 62         android:id="@+id/tv_xh"
 63         android:layout_width="wrap_content"
 64         android:layout_height="wrap_content"
 65         android:layout_marginLeft="20dp"
 66         android:layout_marginTop="30dp"
 67         android:text="兴趣爱好：" />
 68 
 69     <CheckBox
 70         android:id="@+id/cb_pro"
 71         android:layout_width="wrap_content"
 72         android:layout_height="wrap_content"
 73         android:layout_marginLeft="30dp"
 74         android:layout_marginTop="10dp"
 75         android:text="编程" />
 76 
 77     <CheckBox
 78         android:id="@+id/cb_chess"
 79         android:layout_width="wrap_content"
 80         android:layout_height="wrap_content"
 81         android:layout_marginLeft="30dp"
 82         android:layout_marginTop="10dp"
 83         android:text="下棋" />
 84 
 85     <CheckBox
 86         android:id="@+id/cb_sing"
 87         android:layout_width="wrap_content"
 88         android:layout_height="wrap_content"
 89         android:layout_marginLeft="30dp"
 90         android:layout_marginTop="10dp"
 91         android:text="唱歌" />
 92 
 93     <Button
 94         android:id="@+id/btn_login"
 95         android:layout_width="wrap_content"
 96         android:layout_height="wrap_content"
 97         android:layout_gravity="center"
 98         android:layout_marginTop="100dp"
 99         android:text="注册" />
100 
101 </LinearLayout>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns: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=".SecondActivity">

    <LinearLayout
        android:id="@+id/ll_1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="50dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/yhm"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="用户名："
            android:textSize="30dp" />

        <TextView
            android:id="@+id/tv_id2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20dp"
            android:text=""/>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll_xc"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="20dp"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="兴趣爱好："
            android:textSize="20dp" />

        <TextView
            android:id="@+id/tv_xc"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20dp"
            android:text=""/>
    </LinearLayout>

    <Button
        android:id="@+id/btn_top"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="50dp"
        android:text="我要充值" />

    <TextView
        android:id="@+id/tv_money"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="30dp"
        android:text="充值金额显示" />

</LinearLayout>
activity_second.xml

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns: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:layout_weight="5"
    android:orientation="horizontal"
    tools:context=".ThirdActivity">

    <EditText
        android:id="@+id/et_money"
        android:layout_width="0dp"
        android:layout_height="50dp"
        android:layout_margin="20dp"
        android:layout_weight="4"
        android:minLines="1"
        android:text="" />

    <Button
        android:id="@+id/btn_money"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:layout_marginRight="20dp"
        android:layout_weight="1"
        android:text="充值" />

</LinearLayout>
activity_third.xml
package com.example.textapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity implements View.OnClickListener, CompoundButton.OnCheckedChangeListener {
    String cb1 = "",cb2 = "",cb3 = "";
    TextView id;
    String idx;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        CheckBox pro = findViewById(R.id.cb_pro);
        CheckBox chess = findViewById(R.id.cb_chess);
        CheckBox sing = findViewById(R.id.cb_sing);
        pro.setOnCheckedChangeListener(MainActivity.this);
        chess.setOnCheckedChangeListener(MainActivity.this);
        sing.setOnCheckedChangeListener(MainActivity.this);

        findViewById(R.id.btn_login).setOnClickListener(MainActivity.this);
    }

    @Override
    public void onClick(View view) {
        id = findViewById(R.id.et_id);
        idx = id.getText().toString();
        String xc=cb1+cb2+cb3;
        Toast.makeText(MainActivity.this,"恭喜您，注册成功",Toast.LENGTH_LONG).show();
        Intent intent = new Intent(MainActivity.this,SecondActivity.class);
        intent.putExtra("id",idx);
        intent.putExtra("xc",xc);
        startActivity(intent);

    }

    @Override
    public void onCheckedChanged(CompoundButton cb, boolean isChecked) {
        // TODO Auto-generated method stub
        switch (cb.getId()) {
            case R.id.cb_pro:
                if(isChecked)
                    cb1+="编程;";
                else
                    cb1="";
                break;
            case R.id.cb_chess:
                if(isChecked)
                    cb2+="下棋;";
                else
                    cb2="";
                break;
            case R.id.cb_sing:
                if(isChecked)
                    cb3+="唱歌;";
                else
                    cb3="";
                break;
            default:
                break;
        }

    }
}
MainActivity.java
package com.example.textapplication;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

public class SecondActivity extends AppCompatActivity implements View.OnClickListener {
    TextView tv_id,tv_money,tv_xc;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        tv_id = findViewById(R.id.tv_id2);
        tv_money = findViewById(R.id.tv_money);
        tv_xc = findViewById(R.id.tv_xc);
        Intent intent=getIntent();
        String id = intent.getStringExtra("id");
        String xc = intent.getStringExtra("xc");
        tv_id.setText(id);
        tv_xc.setText(xc);

        findViewById(R.id.btn_top).setOnClickListener(SecondActivity.this);
    }

    @Override
    public void onClick(View view) {
        Intent intent2 = new Intent(SecondActivity.this, ThirdActivity.class);
        startActivityForResult(intent2,1);

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1&&resultCode == 2) {
            String requestCodeData = data.getStringExtra("money");
            tv_money.setText("充值金额为" + requestCodeData + "元");
        }
    }
}
SecondActivity
package com.example.textapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

public class ThirdActivity extends AppCompatActivity implements View.OnClickListener {

    String money;
    TextView sum;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_third);

        findViewById(R.id.btn_money).setOnClickListener(ThirdActivity.this);
    }

    @Override
    public void onClick(View view) {
        sum = findViewById(R.id.et_money);
        money = sum.getText().toString();
        Toast.makeText(ThirdActivity.this,"充值成功",Toast.LENGTH_LONG).show();
        Intent intent = new Intent();

        intent.putExtra("money",money);
        setResult(2,intent);
        finish();

    }
}
ThirdActivity

 

 

posted @ 2021-10-18 21:58  L'童话故事  阅读(6)  评论(0)  编辑  收藏  举报