时间：2020-11-08 12:16:07 | 栏目：iOS代码 | 点击：次
在修改交易密码界面用到一个自定义输入框
类似这种（原谅丑了点~）
结果昨天有用户反馈在VIVO手机上回出现，Del键无效的问题~~~
最后发现是：EdiText的OnKeyListener没有响应。
最后搜搜了一下，找到了解决方案：重写EdiTextView的InputConnectionWrapper的方法后解决了问题：
代码如下：
public class ZanyEditText extends EditText {
private OnDelKeyEventListener delKeyEventListener;
public ZanyEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public ZanyEditText(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ZanyEditText(Context context) {
super(context);
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
return new ZanyInputConnection(super.onCreateInputConnection(outAttrs),
true);
}
private class ZanyInputConnection extends InputConnectionWrapper {
public ZanyInputConnection(InputConnection target, boolean mutable) {
super(target, mutable);
}
@Override
public boolean sendKeyEvent(KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN
&& event.getKeyCode() == KeyEvent.KEYCODE_DEL) {
if (delKeyEventListener != null) {
delKeyEventListener.onDeleteClick();
return true;
}
}
return super.sendKeyEvent(event);
}
@Override
public boolean deleteSurroundingText(int beforeLength, int afterLength) {
if (beforeLength == 1 && afterLength == 0) {
return sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_DEL))
&& sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP,
KeyEvent.KEYCODE_DEL));
}
return super.deleteSurroundingText(beforeLength, afterLength);
}
}
/**
*
* 功能描述: <br>
* 〈功能详细描述〉
*
* @param delKeyEventListener EditText删除回调
*/
public void setDelKeyEventListener(OnDelKeyEventListener delKeyEventListener) {
this.delKeyEventListener = delKeyEventListener;
}
public interface OnDelKeyEventListener {
void onDeleteClick();
}
}
参考：http://stackoverflow.com/questions/4886858/android-edittext-deletebackspace-key-event%22