安卓作业

package com.example.app;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.text.style.ClickableSpan;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioGroup;
import android.widget.TextView;

public class MainActivity extends Activity {
    private RadioGroup radioGroup;
    private TextView textView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        radioGroup = (RadioGroup) findViewById(R.id.rdg);
        textView=(TextView) findViewById(R.id.tv4);
        radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            
            
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                if(checkedId==R.id.man){
                    textView.setText("您的性别为：男");
                }else{
                    textView.setText("您的性别为：女");
                }
                // TODO Auto-generated method stub
                
            }
        });
        Log.i("MainActivity", "调用onCreate()");
    }
    protected void onStart(){
        super.onStart();
        Log.i("MainActivity","调用onStart()");
    }
@Override

protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    Log.i("MainActivity", "调用onResume()");
}
@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    Log.i("MainActivity", "调用onPause()");
}
@Override
protected void onStop() {
    // TODO Auto-generated method stub
    super.onStop();
    Log.i("MainActivity", "调用onStop()");
}
@Override
protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    Log.i("MainActivity", "调用onDestory()");
}
@Override
protected void onRestart() {
    // TODO Auto-generated method stub
    super.onRestart();
    Log.i("MainActivity", "调用onRestart()");
}

public void click(View v){
    switch (v.getId()) {
    case R.id.btn1:
        Intent it1=new Intent(this,SecondActivity.class);
        String name=((EditText)findViewById(R.id.et1)).getText().toString();
        String id=((EditText)findViewById(R.id.et1)).getText().toString();
        it1.putExtra("name", name);
        it1.putExtra("age",id);            
        startActivity(it1);
        break;
    
    default:
        break;
    }
}
}



package com.example.app;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;


public class SecondActivity extends Activity{
    
protected void onCreate(Bundle savedlnstanceState){
    super.onCreate(savedlnstanceState);
    setContentView(R.layout.second);
    setContentView(R.layout.activity_main);
    
}
@Override
    protected void onStart() {
        // TODO Auto-generated method stub
        super.onStart();
        Log.i("2222222222222", "界面2调用了Onstart");
        Intent intent=getIntent();
        String name=intent.getStringExtra("name");
        int id=intent.getIntExtra("id", 0);
        Toast.makeText(this, name+"你好,密码是："+id, id).show();
}
        
@Override
protected void onResume(){
    // TODO Auto-generated method stub
    super.onResume();
    Log.i("2222222222222", "界面2调用了Onresume");
}

@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    Log.i("2222222222222", "界面2调用了Onpause");
}

@Override
protected void onStop() {
    // TODO Auto-generated method stub
    super.onStop();
    Log.i("2222222222222", "界面2调用了Onstop");
}

@Override
protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    Log.i("2222222222222", "界面2调用了OnDestroy");
}



}


<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" 
    android:orientation="vertical">
   
  <TextView
        android:id="@+id/tv1"
        android:layout_width="90dp"
        android:layout_height="wrap_content" 
        android:text="请输入用户名:"      
        android:onClick="click"/>

     <TextView
         android:id="@+id/tv2"
         android:layout_width="90dp"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/tv1"
         android:layout_below="@+id/tv1"
         android:layout_marginTop="18dp"
         android:onClick="click"
         android:text="请输入密码:" />

     <EditText
         android:id="@+id/et1"
         android:layout_width="90dp"
         android:layout_height="wrap_content"
         android:layout_above="@+id/et2"
         android:layout_alignRight="@+id/btn1"
         android:maxLines="2"
         android:textSize="20sp"
         android:textStyle="italic"
         android:ems="10" />

     <EditText
         android:id="@+id/et2"
         android:layout_width="90dp"
         android:layout_height="wrap_content"
         android:layout_alignLeft="@+id/et1"
         android:layout_alignRight="@+id/et1"
         android:layout_alignTop="@+id/tv2"
         android:textSize="20sp"
         android:textStyle="italic"
         android:ems="10" >
     
  
         <requestFocus />
         </EditText>
        <RadioGroup
            android:id="@+id/rdg"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            >
            </RadioGroup>
        
        
        <TextView
        android:id="@+id/tv4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:textSize="15sp"/>

        <Button
            android:id="@+id/btn1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="36dp"
            android:onClick="click"
            android:text="注册按钮"
            android:textColor="#000000" />

        <RadioButton
            android:id="@+id/man"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/btn1"
            android:layout_below="@+id/et2"
            android:layout_marginTop="22dp"
            android:text="男"
            android:textSize="15sp" />

        <RadioButton
            android:id="@+id/women"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/man"
            android:layout_alignBottom="@+id/man"
            android:layout_toRightOf="@+id/et2"
            android:text="女"
            android:textSize="15sp" />

        <TextView
            android:id="@+id/tv3"
            android:layout_width="90dp"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/man"
            android:layout_alignBottom="@+id/man"
            android:layout_alignLeft="@+id/tv2"
            android:onClick="click"
            android:text="性别" />
    
</RelativeLayout>
   
   

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
<Button android:id="@id/btn1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="注册信息"/>"
    
</LinearLayout>