android button 按下及抬起事件监听器设置

 

实现功能:按下及抬起不同button时button的背景图像不停地切换

1. public class UartTestActivity extends Activity {
   
2.     UartService uart_srv;
   
3.     String message = null;
   
4.     ImageButton imagebtn1, imagebtn2, imagebtn3, imagebtn4, imagebtn5;
   
5. 
   
6.     /** Called when the activity is first created. */
   
7.     @Override
   
8.     public void onCreate(Bundle savedInstanceState) {
   
9.         super.onCreate(savedInstanceState);
   
10.         setContentView(R.layout.main);
    
11.         uart_srv = new UartService();
    
12.         buttonListener btnliListener1 = new buttonListener();
    
13.         buttonListener btnliListener2 = new buttonListener();
    
14.         buttonListener btnliListener3 = new buttonListener();
    
15.         buttonListener btnliListener4 = new buttonListener();
    
16.         buttonListener btnliListener5 = new buttonListener();
    
17.         //获取imagebutton对象
    
18.         imagebtn1 = (ImageButton) this.findViewById(R.id.imageButton1);
    
19.         imagebtn2 = (ImageButton) this.findViewById(R.id.imageButton2);
    
20.         imagebtn3 = (ImageButton) this.findViewById(R.id.imageButton3);
    
21.         imagebtn4 = (ImageButton) this.findViewById(R.id.imageButton4);
    
22.         imagebtn5 = (ImageButton) this.findViewById(R.id.imageButton5);
    
23.         //设置touch监听器
    
24.         imagebtn1.setOnTouchListener(btnliListener1);
    
25.         imagebtn2.setOnTouchListener(btnliListener2);
    
26.         imagebtn3.setOnTouchListener(btnliListener3);
    
27.         imagebtn4.setOnTouchListener(btnliListener4);
    
28.         imagebtn5.setOnTouchListener(btnliListener5);
    
29.         //设置click监听器
    
30.         imagebtn1.setOnClickListener(btnliListener1);
    
31.         imagebtn2.setOnClickListener(btnliListener2);
    
32.         imagebtn3.setOnClickListener(btnliListener3);
    
33.         imagebtn4.setOnClickListener(btnliListener4);
    
34.         imagebtn5.setOnClickListener(btnliListener5);
    
35.     }
    
36. 
    
37.     public void receive_message(View view) {
    
38.         //
    
39.         int[] message;
    
40.         int i = 0;
    
41.         message = uart_srv.ReceiveMessage();
    
42.         System.out.println("message length is " + message.length);
    
43.         for (i = 0; i < message.length; i++) {
    
44.             System.out.println("message[" + i + "]: = " + message[i]);
    
45.         }
    
46.     }
    
47. 
    
48.     class buttonListener implements OnClickListener, OnTouchListener {
    
49. 
    
50.         @Override
    
51.         public boolean onTouch(View v, MotionEvent event) {
    
52.             // TODO Auto-generated method stub
    
53.             switch (v.getId()) {
    
54.             case R.id.imageButton1:
    
55.                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
    
56.                     imagebtn1.setBackgroundResource(R.drawable.led_on);
    
57.                 }
    
58.                 if (event.getAction() == MotionEvent.ACTION_UP) {
    
59.                     imagebtn1.setBackgroundResource(R.drawable.led);
    
60.                 }
    
61.                 break;
    
62.             case R.id.imageButton2:
    
63.                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
    
64.                     imagebtn2.setBackgroundResource(R.drawable.message_on);
    
65.                 }
    
66.                 if (event.getAction() == MotionEvent.ACTION_UP) {
    
67.                     imagebtn2.setBackgroundResource(R.drawable.message);
    
68.                 }
    
69.                 break;
    
70.             case R.id.imageButton3:
    
71.                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
    
72.                     imagebtn3.setBackgroundResource(R.drawable.fan_on);
    
73.                 }
    
74.                 if (event.getAction() == MotionEvent.ACTION_UP) {
    
75.                     imagebtn3.setBackgroundResource(R.drawable.fan);
    
76.                 }
    
77.                 break;
    
78.             case R.id.imageButton4:
    
79.                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
    
80.                     imagebtn4.setBackgroundResource(R.drawable.digital_on);
    
81.                 }
    
82.                 if (event.getAction() == MotionEvent.ACTION_UP) {
    
83.                     imagebtn4.setBackgroundResource(R.drawable.digital);
    
84.                 }
    
85.                 break;
    
86.             case R.id.imageButton5:
    
87.                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
    
88.                     imagebtn5.setBackgroundResource(R.drawable.beep_on);
    
89.                 }
    
90.                 if (event.getAction() == MotionEvent.ACTION_UP) {
    
91.                     imagebtn5.setBackgroundResource(R.drawable.beep);
    
92.                 }
    
93.                 break;
    
94.             }
    
95.             return true;
    
96.         }
    
97. 
    
98.         @Override
    
99.         public void onClick(View v) {
    
100.             // TODO Auto-generated method stub
     
101.             switch(v.getId()){
     
102.             case R.id.imageButton1:
     
103.                 break;
     
104.             case R.id.imageButton2:
     
105.                 break;
     
106.             case R.id.imageButton3:
     
107.                 break;
     
108.             case R.id.imageButton4:
     
109.                 break;
     
110.             case R.id.imageButton5:
     
111.                 break;
     
112.             }    
     
113.         }
     
114. 
     
115.     }