05 Activity 回传数据

当从一个Activity跳转到第二个Activity后然 让其处理完业务逻辑回传数据给第一个Activity：

回传调用方法顺序：

 onActivityResult---》》onRestart》》 start

第一个Activity：

package com.fmyboke;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.R.integer;
import android.R.string;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
	final int CODE =1;
	private Intent intent;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Log.e("fmytext", "oncreate");
		intent = new Intent(this, Second.class);

	}

	@Override
	protected void onStart(){
		super.onStart();
		Log.e("fmytext", "onStart");
	}
	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.onResume();
		Log.e("fmytext", "onResume");

		//开始跳转至 intent 意图   请求码
		//startActivityForResult(intent, CODE);
	}
	@Override
	protected void onRestart() {
		// TODO Auto-generated method stub
		super.onRestart();
		Log.e("fmytext", "onRestart");
	}
	public void  click(View v) {
		Toast.makeText(this, "dianji", 0).show();
		startActivityForResult(intent, CODE);
	}
	//当回传数据的时候调用 会先用
	//当回传数据的时候调用 会先用调用用这个回传方法才    onActivityResult---》》onRestart》》 start
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		//TODO Auto-generated method stub
		Log.e("fmytext", "onActivityResult");
		super.onActivityResult(requestCode, resultCode, data);
		String name = data.getStringExtra("name");
		Toast.makeText(this, name, 0).show();
		TextView tv =(TextView) findViewById(R.id.tv2);
		tv.setText(name+":");
	}
}

第二个回传：

package com.fmyboke;

import java.io.Serializable;

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

public class Second extends Activity{
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.second);
		Intent intent = new Intent();
		intent.putExtra("name", "张三");
		//设置响应码 和意图
		setResult(100, intent);
		//摧毁一个Activity

	}
	public void s(View v) {
		finish();
	}
}