Activity(縁結びのまとめ)

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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
    android:orientation="vertical">

    <EditText
        android:id="@+id/name1"
        android:hint="      "
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <EditText
        android:id="@+id/name2"
        android:hint="          "
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <Button
        android:text="   "
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="click"/>

LinearLayout>

 
  
 
  
 
  
 布局二： 
   
   
  
xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent">
<TextView
    android:id="@+id/ceshi"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
LinearLayout>
  
 
  
 
  
 
  
 
  
 
  MainActivity.java: 
   
  
 
  
package com.caozhihong.dell.test2;

    import android.content.Intent;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.EditText;

    public class MainActivity extends AppCompatActivity {
        private EditText etYourName;
        private EditText etOtherNmae;
        String yourname;
        String othername;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            etYourName=(EditText)findViewById(R.id.name1);
            etOtherNmae=(EditText)findViewById(R.id.name2);
        }

        public void click(View v){
            Intent intent=new Intent();
            intent.putExtra("yourname",etYourName.getText().toString());
            intent.putExtra("othername",etOtherNmae.getText().toString());
            intent.setClass(MainActivity.this,Activity2.class);
            startActivity(intent);
        }
}
  
Activity2.java: 
package com.caozhihong.dell.test2;

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

import java.util.Random;

/**
 * Created by dell on 2016/1/3.
 */
public class Activity2 extends Activity {

    private TextView tvyinyuan;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout2);
        tvyinyuan=(TextView)findViewById(R.id.ceshi);
        Intent intent=getIntent();
        String yourName=intent.getStringExtra("yourname");
        String otherName=intent.getStringExtra("othername");

        Random random=new Random();
        int num=random.nextInt(100);
        tvyinyuan.setText(yourName+"  "+otherName+"  "+num);
    }
}
  
 
  
 
  
 
  
 
  
 
  
 
  
  ：
  
1. 
setContentView(R.layout.activity_main);
  
「setContentView」を使用して、onCreate関数にレイアウトを追加します.
2.EditTextタイプのetYourNameとetOtherNameを宣言して、レイアウトのEditTextに連絡します.
3.通過
etYourName=(EditText)findViewById(R.id.name1);
etOtherNmae=(EditText)findViewById(R.id.name2);  etYourName etOtherName   。
  
 
  
4.  
  
android:onClick="click"        
  
public void click(View v){
    Intent intent=new Intent();
    intent.putExtra("yourname",etYourName.getText().toString());
    intent.putExtra("othername",etOtherNmae.getText().toString());
    intent.setClass(MainActivity.this,Activity2.class);
    startActivity(intent);
}              
  
    。
  
 
  
5.  intent    “  ”，    intent          。
  
  
 
  
6.  intent.setClass(MainActivity.this,Activity2.class);             。
  
 
  
7.  startActivity(intent);  Activity2。
  

  
8.Activity2 ，  
  
private TextView tvyinyuan;  ，     tvyinyuan.setText(yourName+"  "+otherName+"  "+num);  ，       。
  

  
9.  
  
Random random=new Random();
int num=random.nextInt(100);  ，      num。
  
 
  
10.
  
MainActivity  private EditText etYourName;         String yourname;   intent.putExtra("yourname",etYourName.getText().toString());   Activity   String yourName=intent.getStringExtra("yourname");               。
  

  
  ：
  
1.   。
  
2. manifests   Activity2:
  
<activity android:name=".Activity2">activity>