main端：
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/**
* 实现：主页面点击按钮1，跳转到页面二输入内容，点击页面二按钮返回主页面并显示输入信息；
* 主页面点击按钮2，跳转到页面三输入内容，点击页面三按钮返回主页面并显示输入信息.
* 主要步骤：
* 1) startActivityForResult(intent, 0);
* 2) 回传数据时，调用setResult(0, data)方法，然后执行finish()
* 3) onActivityResult(int, int, Intent data)
*/
public
class
MainActivity
extends
Activity
{
private
static
final
int
BTN_ONE =
1
;
//将常量封装定义
private
static
final
int
BTN_TWO =
2
;
@Override
//重写onActivityResult
protected
void
onActivityResult(
int
requestCode,
int
resultCode, Intent data)
{
super
.onActivityResult(requestCode, resultCode, data);
//有参数的super必须重写
TextView textView = (TextView) findViewById(R.id.textView1_main);
if
(requestCode == BTN_ONE)
//根据请求码判断接收内容
{
String str = data.getStringExtra(
"one"
);
textView.setText(str);
}
else
if
(requestCode == BTN_TWO)
{
String str = data.getStringExtra(
"two"
);
textView.setText(str);
}
}
@Override
protected
void
onCreate(Bundle savedInstanceState)
{
super
.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//监听button1，跳转到NextActivity，等待result
Button button1=(Button) findViewById(R.id.button1_main);
button1.setOnClickListener(
new
OnClickListener()
{
@Override
public
void
onClick(View v)
{
Intent intent =
new
Intent(MainActivity.
this
,NextActivity.
class
);
startActivityForResult(intent, BTN_ONE);
}
});
//监听button2，跳转到ThirdActivity，等待result
Button button2 =(Button) findViewById(R.id.button2_main);
button2.setOnClickListener(
new
OnClickListener()
{
@Override
public
void
onClick(View v)
{
Intent intent =
new
Intent(MainActivity.
this
,ThirdActivity.
class
);
startActivityForResult(intent, BTN_TWO);
}
});
}
@Override
public
boolean
onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.main, menu);
return
true
;
}
}
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public
class
NextActivity
extends
Activity
{
@Override
protected
void
onCreate(Bundle savedInstanceState)
{
super
.onCreate(savedInstanceState);
setContentView(R.layout.activity_next);
Button button =(Button) findViewById(R.id.button1_next);
button.setOnClickListener(
new
OnClickListener()
{
@Override
public
void
onClick(View v)
{
//得到用户数据
EditText editText=(EditText) findViewById(R.id.editText1_next);
String strone = editText.getText().toString();
//回传数据
Intent data =
new
Intent();
data.putExtra(
"one"
, strone);
setResult(
1
, data );
//关闭当前窗口
finish();
}
});
}
@Override
public
boolean
onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.next, menu);
return
true
;
}
}
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third端：
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public
class
ThirdActivity
extends
Activity
{
@Override
protected
void
onCreate(Bundle savedInstanceState)
{
super
.onCreate(savedInstanceState);
setContentView(R.layout.activity_third);
Button button = (Button) findViewById(R.id.button1_third);
button.setOnClickListener(
new
OnClickListener()
{
@Override
public
void
onClick(View v)
{
EditText editText = (EditText) findViewById(R.id.editText1_third);
String strtwo = editText.getText().toString();
Intent data =
new
Intent();
data.putExtra(
"two"
, strtwo);
setResult(
2
,data );
finish();
}
});
}
@Override
public
boolean
onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.third, menu);
return
true
;
}
}
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本文转自 glblong 51CTO博客，原文链接：http://blog.51cto.com/glblong/1195845，如需转载请自行联系原作者
