public class Test extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.d("test","onCreate");
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button)findViewById(R.id.button);
final TextView textview = (TextView)findViewById(R.id.textview);
Timer timer = new Timer(); TimerTask timerTask = new TimerTask() {
@Override
public void run() {
textview.setText("change by timetask");
}
};
timer.schedule(timerTask, 2000); //2秒后执行
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
textview.setText("change by button");
}
});
}
}
按下Button按钮文字内容会改变,但是延时时间到了之后程序直接挂掉了,这是为什么啊
解决方案 »
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