结对编程

文档说明:

这个demo实现的功能是用户登陆后点击球员的名字可以显示图片

关键代码

 1 public class MainActivity extends AppCompatActivity {
 2     EditText et_name;
 3     EditText et_password;
 4     Button bt_login;
 5 
 6     @Override
 7     protected void onCreate(Bundle savedInstanceState) {
 8         super.onCreate(savedInstanceState);
 9         setContentView(R.layout.activity_main);
10         et_name =(EditText)findViewById(R.id.et_name);
11         et_password=(EditText)findViewById(R.id.et_passwaord);
12         bt_login =(Button)findViewById(R.id.bt_login);
13         bt_login.setOnClickListener(new View.OnClickListener() {
14             @Override
15             public void onClick(View view) {
16                 String  name =et_name.getText().toString();
17                 String  password =et_password.getText().toString();
18                 if(TextUtils.isEmpty(name)&&TextUtils.isEmpty(password)){
19                     Toast.makeText(MainActivity.this,"请输入用户名和密码",Toast.LENGTH_SHORT).show();
20 
21                 }else if(TextUtils.isEmpty(name)&&password!=null){
22                     Toast.makeText(MainActivity.this,"请输入用户名",Toast.LENGTH_SHORT).show();
23 
24 
25                 }else if(TextUtils.isEmpty(password)&&name!=null){
26                     Toast.makeText(MainActivity.this,"请输入密码",Toast.LENGTH_SHORT).show();
27 
28                 }else{
29                     if(name.equals("niit")&&password.equals("123456")) {
30                         Toast.makeText(MainActivity.this, "登录成功", Toast.LENGTH_SHORT).show();
31                         Intent myIntent = new Intent(MainActivity.this, UserActivity.class);
32                         startActivity(myIntent);
33                     }else{
34                         Toast.makeText(MainActivity.this, "登录失败", Toast.LENGTH_SHORT).show();
35                     }
36                     }
37                 }
38 
39         });
40     }
41 }
 1 public class UserActivity extends AppCompatActivity {
 2     Button kb;
 3     Button back_m;
 4     @Override
 5     protected void onCreate(@Nullable Bundle savedInstanceState) {
 6         super.onCreate(savedInstanceState);
 7         setContentView(R.layout.userlayout);
 8         kb=(Button) findViewById(R.id.kb);
 9         back_m=(Button)findViewById(R.id.back_m) ;
10         kb.setOnClickListener(new View.OnClickListener() {
11             @Override
12             public void onClick(View view) {
13                 Intent kb = new Intent(UserActivity.this,KobeAcicity_two.class);
14                 startActivity(kb);
15             }
16         });
17         back_m.setOnClickListener(new View.OnClickListener() {
18             @Override
19             public void onClick(View v) {
20                 Intent back_m = new Intent(UserActivity.this,MainActivity.class);
21                 startActivity(back_m);
22             }
23         });
24     }
25 }
 1 public class KobeAcicity_two extends Activity {
 2     private Button btn;
 3     private ImageView img;
 4     private String url = "https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=4267085115,1950863501&fm=23&gp=0.jpg";
 5 
 6     
 7     private Handler handle = new Handler() {
 8         public void handleMessage(Message msg) {
 9             switch (msg.what) {
10                 case 0:
11                     System.out.println("111");
12                     Bitmap bmp=(Bitmap)msg.obj;
13                     img.setImageBitmap(bmp);
14                     break;
15             }
16         };
17     };
18     @Override
19     protected void onCreate(Bundle savedInstanceState) {
20         super.onCreate(savedInstanceState);
21         setContentView(R.layout.kobelayout);
22 
23         btn = (Button) findViewById(R.id.ld);
24         img = (ImageView) findViewById(R.id.kobe);
25 
26         btn.setOnClickListener(new View.OnClickListener() {
27 
28             @Override
29             public void onClick(View v) {
30                 
31                 new Thread(new Runnable() {
32 
33                     @Override
34                     public void run() {
35                         // TODO Auto-generated method stub
36                         Bitmap bmp = getURLimage(url);
37                         Message msg = new Message();
38                         msg.what = 0;
39                         msg.obj = bmp;
40                         System.out.println("000");
41                         handle.sendMessage(msg);
42                     }
43                 }).start();
44             }
45         });
46     }
47 
48     
49         public Bitmap getURLimage(String url) {
50         Bitmap bmp = null;
51         try {
52             URL myurl = new URL(url);
53          
54             HttpURLConnection conn = (HttpURLConnection) myurl.openConnection();
55             conn.setConnectTimeout(10000);
56             conn.setDoInput(true);
57             conn.setUseCaches(false);
58             conn.connect();
59             InputStream is = conn.getInputStream();
60             bmp = BitmapFactory.decodeStream(is);
61             is.close();
62         } catch (Exception e) {
63             e.printStackTrace();
64         }
65         return bmp;
66     }
67 }

 

posted @ 2017-03-29 00:58  Lippman丶  阅读(150)  评论(0编辑  收藏  举报