请问在扩展 extends view中如何在引用其的程序中触发事件？

Question

本帖最后由 itakeblue 于 2013-12-13 10:13:47 编辑

Answer 1

你把touchpad这个activity穿个你的edittext，调用它的方法，或者传个handle给textview，通过handle去调用

Answer 2

Intent intent = new Intent();
intent.setAction("w.w.xxxx");
intent.putExtra("data", 5555);
sendBroadcast(intent);//-------------------
public class DataReceiver extends BroadcastReceiver { @Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
double data = intent.getDoubleExtra("data", 0);
tv.setText("的数据为:" + data); } }

Answer 3

test
public class test extends EditText { public test(Context context, AttributeSet attrs) {
super(context, attrs);
} OnKeyBackPressed keybackpressed = null; public void SetOnKeybackPressed(OnKeyBackPressed k) {
keybackpressed = k;
} @Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
if (event.getKeyCode() == android.view.KeyEvent.KEYCODE_BACK) {
// to do something
if (keybackpressed != null)
keybackpressed.back_pressed();
}
return super.onKeyPreIme(keyCode, event);
} public static interface OnKeyBackPressed {
public void back_pressed();
}
}touchpadeditText1.SetOnKeybackPressed(new OnKeyBackPressed() { @Override
public void back_pressed() {
// ToDo something }
});