android布局带参返回，android布局

android布局带参返回，android布局

package com.lxj.lesson2_3ID19;

import com.example.lesson2_3_id19.R;
import com.lxj.other.AgeActivity;
import com.lxj.other.HeightActivity;
import com.lxj.other.SexActivity;

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

public class MainActivity extends Activity implements OnClickListener {
    private static final int REQUEST_AGE = 1;
    private static final int REQUEST_HEIGHT = 2;
    private static final int REQUEST_SEX = 3;
    User user = new User();
    TextView tvAge,tvHeight,tvSex;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        initView();
        registerListener();
    }
    private void registerListener() {
        tvAge.setOnClickListener(this);
        tvHeight.setOnClickListener(this);
        tvSex.setOnClickListener(this);
    }
    private void initView() {
        tvAge = (TextView) findViewById(R.id.tv_age);
        tvHeight = (TextView) findViewById(R.id.tv_height);
        tvSex = (TextView) findViewById(R.id.tv_sex);
    }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.tv_age:
            startActivityForResult(new Intent(this, AgeActivity.class), REQUEST_AGE);
            break;
        case R.id.tv_height:
            startActivityForResult(new Intent(this, HeightActivity.class), REQUEST_HEIGHT);
            break;
        case R.id.tv_sex:
            startActivityForResult(new Intent(this, SexActivity.class), REQUEST_SEX);
            break;
        }
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        // 调试可见，程序中不用
        Log.e("TAG", "-------------程序从" + requestCode + "返回");
        if (resultCode == RESULT_OK) {
            switch (requestCode) {
            case REQUEST_AGE:
                String age = data.getStringExtra("age");
                tvAge.setText(age);
                break;
            case REQUEST_HEIGHT:
                String height = data.getStringExtra("height");
                tvHeight.setText(height);
                break;
            case REQUEST_SEX:
                String sex = data.getStringExtra("sex");
                tvSex.setText(sex);
                break;
            }
        }else {
            // 调试程序用log，代码中不需要
            Log.e("TAG", "-------------程序没有任何返回");
        }
    }
}

package com.lxj.lesson2_3ID19;

public class User {
    String age;
    String height;
    String sex;
    public String getAge() {
        return age;
    }
    public void setAge(String age) {
        this.age = age;
    }
    public String getHeight() {
        return height;
    }
    public void setHeight(String height) {
        this.height = height;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public User(String age, String height, String sex) {
        super();
        this.age = age;
        this.height = height;
        this.sex = sex;
    }
    
    public User() {
        super();
        // TODO Auto-generated constructor stub
    }
    @Override
    public String toString() {
        return "User [age=" + age + ", height=" + height + ", sex=" + sex + "]";
    }
    
}

package com.lxj.other;

import com.example.lesson2_3_id19.R;

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

public class AgeActivity extends Activity implements OnClickListener{
    TextView aga1,age2,age3;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_age);
        initView();
        registerListener();
    }
    private void registerListener() {
        aga1.setOnClickListener(this);
        age2.setOnClickListener(this);
        age3.setOnClickListener(this);
    }
    private void initView() {
        aga1 = (TextView) findViewById(R.id.tv_age_1);
        age2 = (TextView) findViewById(R.id.tv_age_2);
        age3 = (TextView) findViewById(R.id.tv_age_3);
    }
    @Override
    public void onClick(View v) {
        // 这个v代表当前所点击的视图
        // instanceof：代表 左边的对象是否是右边类型的实例
        if (v instanceof TextView) {
            // 把v强转成TextView类型
            TextView tv = (TextView) v;
            
            //带参返回