通过Intent在Activity|Service之间传递数据

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>

activity_address.xml:

<?xml version="1.0" encoding="utf-8"?>

ActivityMain.java:

package com.miao.tran;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.EditText;import android.widget.TextView;public class MainActivity extends AppCompatActivity {    private TextView addr1 = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        addr1 = (TextView)findViewById(R.id.text1);    }    public void select(View view) {        Intent intent = new Intent("address");        startActivityForResult(intent,123);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if(requestCode == 123 & resultCode == 789){            String msg = data.getStringExtra("msg");            addr1.setText(msg);        }    }}

AddressActivity.java:

package com.miao.tran;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.EditText;public class AddressActivity extends AppCompatActivity {    private EditText addr2 = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_address);        addr2 = (EditText)findViewById(R.id.text2);    }    public void back(View view) {        Intent intent = getIntent();        intent.putExtra("msg",addr2.getText().toString());        setResult(789, intent);        finish();    }}

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