private TextView tv;
private Button btn,btn2;
private int btnsend;
private final int HANDLER_TEST=1;
private final int HANDLER_STOP=0;
private int count=0;
private Handler handler=new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
// Toast.makeText(MainActivity.this, count, 500).show();
switch (msg.what) {
case HANDLER_TEST :
tv.setText("当前计数值："+count);
break;
default:
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv=(TextView)findViewById(R.id.Tv);
btn=(Button)findViewById(R.id.button);
btn2=(Button)findViewById(R.id.button2);
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
btnsend=HANDLER_TEST;
}
});
btn2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
btnsend=HANDLER_STOP;
}
});
new Thread(new Runnable() {
@Override
public void run() {
while(true){
try {
Thread.sleep(10);
count++;
System.out.println(count);
// btnsend=HANDLER_TEST;
} catch (Exception e) {
e.printStackTrace();
}
Message msg=new Message();
msg.what=btnsend;
handler.sendMessage(msg);
}
}
}).start();
}