startActivityForResult 开启一个新的界面，并且获取界面的返回值

package com.heima.sms_send;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.EditText;public class SMS_SendActivity extends Activity {    /** Called when the activity is first created. */		private EditText et_content;	private EditText et_number;	    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                et_content = (EditText) findViewById(R.id.et_content);		et_number = (EditText) findViewById(R.id.et_number);    }    public void selectSms (View view){    	Intent intent = new Intent(this,ListSmsActivity.class);    	    	// 开启一个新的界面，并且获取界面的返回值    	startActivityForResult(intent, 0);    }    public void selectNumber(View view){    	Intent intent = new Intent(this,ListNumberActivity.class);    	startActivityForResult(intent, 1);    }	@Override	protected void onActivityResult(int requestCode, int resultCode, Intent data) {		// TODO Auto-generated method stub		super.onActivityResult(requestCode, resultCode, data);				if(resultCode == 0){			et_content.setText(data.getStringExtra("smsinfo"));		}else if (resultCode == 1){			et_number.setText(data.getStringExtra("numberinfo"));		}			}    }

listView界面设置

setResult返回界面数据

package com.heima.sms_send;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ArrayAdapter;import android.widget.ListView;public class ListSmsActivity extends Activity {	private ListView lv;	private String[] objects = {			"玫瑰香香，情人黏黏，情话甜甜，情歌绵绵；花灯灿灿，礼花点点，好运连连，好梦圆圆。情人节喜逢元宵节，喜鹊登枝蝴蝶成双鸳鸯成对双喜临门祝双节快乐，合家团团圆圆，甜甜蜜蜜，开开心心，幸幸福福",			"情人节快到了，我精心挑选玫瑰花、百合花和满天星，扎成一束鲜花随短信送给你，火红的玫瑰代表热烈奔放，洁白的百合代表百年好合，小小的满天星代表幸福美好。愿你的情人节热烈奔放，你们的爱情百年好合，你们的生活幸福美满。预祝情人节快乐",			"^o^满天星光，最爱你许过愿望的那一颗，鲜花绽放，最爱你摘下微笑的那一朵，曼妙旋律，最爱你感动落泪的那一段，亲爱的，情人节快乐，爱你。 ",			"^o^宝贝，情人节到了，送你一束玫瑰，用真心塑料纸包扎，系上快乐彩带，喷点爱的香水，插一张真情卡片，写着：宝贝，愿我的爱能带给你一生的快乐！" };		@Override	protected void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);				setContentView(R.layout.activity_sms);		lv = (ListView) findViewById(R.id.lv);		lv.setAdapter(new ArrayAdapter
    
     (this, R.layout.sms_item,				R.id.tv_info, objects));				lv.setOnItemClickListener(new OnItemClickListener() {			@Override			public void onItemClick(AdapterView
      arg0, View arg1, int arg2,					long arg3) {				// TODO Auto-generated method stub				String message = objects[arg2];				Intent data = new Intent();				data.putExtra("smsinfo", message);				//设置数据				setResult(0, data);				//关闭当前的activity并且返回数据				finish();			}		});			}}
    

package com.heima.sms_send;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ArrayAdapter;import android.widget.ListView;public class ListNumberActivity extends Activity {	private ListView lv;	private String[] objects = {			"1234","34324","5643543","32424" };		@Override	protected void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);				setContentView(R.layout.activity_sms);		lv = (ListView) findViewById(R.id.lv);		lv.setAdapter(new ArrayAdapter
    
     (this, R.layout.sms_item,				R.id.tv_info, objects));				lv.setOnItemClickListener(new OnItemClickListener() {			@Override			public void onItemClick(AdapterView
      arg0, View arg1, int arg2,					long arg3) {				// TODO Auto-generated method stub				String message = objects[arg2];				Intent intent = new Intent();				intent.putExtra("numberinfo", message);				setResult(1, intent);				finish();			}		});			}}