【移动应用开发技术】Android Studio之Debug运行期代码植入的示例分析

【移动应用开发技术】AndroidStudio之Debug运行期代码植入的示例分析

背景@Data

@ToString

@AllArgsConstructor

public

class

User

{

private

String

name;

private

String

sex;

}public

class

Client

{

private

static

final

String[]

NAMES

=

{"美队",

"浩克",

"黑寡妇"};

private

static

final

List<User>

USERS

=

Arrays.stream(NAMES)

.map(name

->

new

User(name,

"男"))

.collect(Collectors.toList());

public

static

void

main(String[]

args)

{

for

(User

user

:

USERS)

{

System.out.println(user);

}

}

}普通断点/upload/information/20200623/125/121976.png条件断点/upload/information/20200623/125/121977.gif改变变量状态/upload/information/20200623/125/121978.gif/upload/information/20200623/125/121979.gif条件断点+代码植入/upload/information/20200623/125/121980.gifif

("黑寡妇".equals(user.getName()))

{

user.setSex("女");

}

//

此处返回false为了告诉IDE在该断点出不对程序执行挂起操作

return

false;/upload/information/20200623/125/121981.gif应用场景public

class

ImageActivity

extends

Activity

{

private

static

final

String

KEY_CONTENT

=

"imageUrl";

public

static

void

open(Context

context,

String

content)

{

Intent

intent

=

new

Intent(context,

ImageActivity.class);

intent.putExtra(KEY_CONTENT,

content);

context.startActivity(intent);

}

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ImageView

imageView

=

findViewById(R.id.image);

//

取出参数内容

String

imageUrl

=

getIntent().getStringExtra(KEY_CONTENT);

Glide.with(this).load(imageUrl).into(imageView);

}

}/upload/information/20200623/125/121982.png/upl