1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
package
com.example.android.active;
import
android.app.Activity;
import
android.content.Intent;
import
android.os.Bundle;
import
android.view.View;
import
android.view.View.OnClickListener;
import
android.widget.Button;
import
android.widget.EditText;
/**
* Activity实现返回结果
* 1.需要得到activity的返回结果,必须使用startActivityForResult()方法启动另一个activity
* 2.必须重写onActivityResult()方法来处理返回结果
* 3.在返回结果的activity中要使用setResult()方法设置结果
*
* */
public
class
MainActivity3
extends
Activity
implements
OnClickListener{
private
Button button1;
private
EditText etNumber;
private
static
final
int
REQUESTCODE=
1
;
//请求编码,只是做一个标记,以便在onActivityResult()中识别
@Override
protected
void
onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super
.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
button1=(Button) findViewById(R.id.submit1);
button1.setOnClickListener(
this
);
etNumber=(EditText) findViewById(R.id.EditPhoneNumber);
}
@Override
public
void
onClick(View v) {
// TODO Auto-generated method stub
//启动一个有返回结果的Activity
Intent intent=
new
Intent(
this
,MainActivity4.
class
);
//参数:1.intent对象 2.请求编码(标记)可以是正整数值
startActivityForResult(intent, REQUESTCODE);
}
//重写返回结果的方法
@Override
protected
void
onActivityResult(
int
requestCode,
int
resultCode, Intent data) {
// TODO Auto-generated method stub
super
.onActivityResult(requestCode, resultCode, data);
switch
(requestCode) {
case
REQUESTCODE:
if
(resultCode==RESULT_OK){
String phone=data.getStringExtra(
"phone"
);
etNumber.setText(phone);
}
break
;
default
:
break
;
}
}
}
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
package
com.example.android.active;
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;
import
android.widget.TextView;
public
class
MainActivity4
extends
Activity
implements
OnItemClickListener{
private
ListView listView;
@Override
protected
void
onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super
.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4);
listView=(ListView) findViewById(R.id.listView1);
String [] array={
"123"
,
"334"
,
"435"
};
ArrayAdapter<String> adapter=
new
ArrayAdapter<String>(
this
, android.R.layout.simple_list_item_single_choice,array);
listView.setAdapter(adapter);
listView.setOnItemClickListener(
this
);
}
@Override
public
void
onItemClick(AdapterView<?> arg0, View v,
int
arg2,
long
arg3) {
// TODO Auto-generated method stub
TextView textView=(TextView)v;
String s=(String) textView.getText().toString();
System.out.println(s);
//设置返回的结果
Intent intent=
new
Intent();
intent.putExtra(
"phone"
, s);
this
.setResult(RESULT_OK, intent);
this
.finish();
}
}
|
activity_main3.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
<?xml version=
"1.0"
encoding=
"utf-8"
?>
<LinearLayout xmlns:android=
"http://schemas.android.com/apk/res/android"
android:layout_width=
"match_parent"
android:layout_height=
"match_parent"
android:orientation=
"vertical"
>
<EditText
android:id=
"@+id/EditPhoneNumber"
android:layout_width=
"match_parent"
android:layout_height=
"wrap_content"
android:hint=
"请输入"
/>
<Button
android:id=
"@+id/submit1"
android:layout_width=
"match_parent"
android:layout_height=
"wrap_content"
android:text=
"提交"
/>
</LinearLayout>
|
activity_main4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
<?xml version=
"1.0"
encoding=
"utf-8"
?>
<LinearLayout xmlns:android=
"http://schemas.android.com/apk/res/android"
android:layout_width=
"match_parent"
android:layout_height=
"match_parent"
android:orientation=
"vertical"
>
<ListView
android:id=
"@+id/listView1"
android:layout_width=
"match_parent"
android:layout_height=
"wrap_content"
>
</ListView>
</LinearLayout>
|
本文转自 matengbing 51CTO博客,原文链接:http://blog.51cto.com/matengbing/1881325