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

public class UartTestActivity extends Activity {

UartService uart_srv;

String message = null;

ImageButton imagebtn1, imagebtn2, imagebtn3, imagebtn4, imagebtn5;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

uart_srv = new UartService();

buttonListener btnliListener1 = new buttonListener();

buttonListener btnliListener2 = new buttonListener();

buttonListener btnliListener3 = new buttonListener();

buttonListener btnliListener4 = new buttonListener();

buttonListener btnliListener5 = new buttonListener();

//获取imagebutton对象

imagebtn1 = (ImageButton) this.findViewById(R.id.imageButton1);

imagebtn2 = (ImageButton) this.findViewById(R.id.imageButton2);

imagebtn3 = (ImageButton) this.findViewById(R.id.imageButton3);

imagebtn4 = (ImageButton) this.findViewById(R.id.imageButton4);

imagebtn5 = (ImageButton) this.findViewById(R.id.imageButton5);

//设置touch监听器

imagebtn1.setOnTouchListener(btnliListener1);

imagebtn2.setOnTouchListener(btnliListener2);

imagebtn3.setOnTouchListener(btnliListener3);

imagebtn4.setOnTouchListener(btnliListener4);

imagebtn5.setOnTouchListener(btnliListener5);

//设置click监听器

imagebtn1.setOnClickListener(btnliListener1);

imagebtn2.setOnClickListener(btnliListener2);

imagebtn3.setOnClickListener(btnliListener3);

imagebtn4.setOnClickListener(btnliListener4);

imagebtn5.setOnClickListener(btnliListener5);

}

public void receive_message(View view) {

//

int[] message;

int i = 0;

message = uart_srv.ReceiveMessage();

System.out.println("message length is " + message.length);

for (i = 0; i < message.length; i++) {

System.out.println("message[" + i + "]: = " + message[i]);

}

}

class buttonListener implements OnClickListener, OnTouchListener {

@Override

public boolean onTouch(View v, MotionEvent event) {

// TODO Auto-generated method stub

switch (v.getId()) {

case R.id.imageButton1:

if (event.getAction() == MotionEvent.ACTION_DOWN) {

imagebtn1.setBackgroundResource(R.drawable.led_on);

}

if (event.getAction() == MotionEvent.ACTION_UP) {

imagebtn1.setBackgroundResource(R.drawable.led);

}

break;

case R.id.imageButton2:

if (event.getAction() == MotionEvent.ACTION_DOWN) {

imagebtn2.setBackgroundResource(R.drawable.message_on);

}

if (event.getAction() == MotionEvent.ACTION_UP) {

imagebtn2.setBackgroundResource(R.drawable.message);

}

break;

case R.id.imageButton3:

if (event.getAction() == MotionEvent.ACTION_DOWN) {

imagebtn3.setBackgroundResource(R.drawable.fan_on);

}

if (event.getAction() == MotionEvent.ACTION_UP) {

imagebtn3.setBackgroundResource(R.drawable.fan);

}

break;

case R.id.imageButton4:

if (event.getAction() == MotionEvent.ACTION_DOWN) {

imagebtn4.setBackgroundResource(R.drawable.digital_on);

}

if (event.getAction() == MotionEvent.ACTION_UP) {

imagebtn4.setBackgroundResource(R.drawable.digital);

}

break;

case R.id.imageButton5:

if (event.getAction() == MotionEvent.ACTION_DOWN) {

imagebtn5.setBackgroundResource(R.drawable.beep_on);

}

if (event.getAction() == MotionEvent.ACTION_UP) {

imagebtn5.setBackgroundResource(R.drawable.beep);

}

break;

}

return true;

}

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

switch(v.getId()){

case R.id.imageButton1:

break;

case R.id.imageButton2:

break;

case R.id.imageButton3:

break;

case R.id.imageButton4:

break;

case R.id.imageButton5:

break;

}

}

}