DialogFragment弹窗外部监听
时间: 2024-02-01 08:47:56 浏览: 119
DialogFragment弹窗外部监听可以通过接口回调的方式实现。首先,在DialogFragment类中定义一个接口,用于回调外部的监听事件。然后,在外部实现该接口,并将实现的监听事件传递给DialogFragment。当DialogFragment中需要触发监听事件时,通过调用接口的方法,将事件传递给外部。这样,外部就可以监听DialogFragment的弹窗事件了。
以下是一个示例代码:
在DialogFragment类中定义接口:
```
public class MyDialogFragment extends DialogFragment {
// 定义接口
public interface OnDialogDismissListener {
void onDismiss();
}
private OnDialogDismissListener mListener;
// 设置监听器
public void setOnDialogDismissListener(OnDialogDismissListener listener) {
mListener = listener;
}
// 在DialogFragment消失时触发监听事件
@Override
public void onDismiss(@NonNull DialogInterface dialog) {
super.onDismiss(dialog);
if (mListener != null) {
mListener.onDismiss();
}
}
}
```
在外部实现接口:
```
public class MainActivity extends AppCompatActivity implements MyDialogFragment.OnDialogDismissListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 创建DialogFragment实例
MyDialogFragment dialogFragment = new MyDialogFragment();
// 设置监听器
dialogFragment.setOnDialogDismissListener(this);
// 显示DialogFragment
dialogFragment.show(getSupportFragmentManager(), "dialogFragment");
}
// 实现接口方法,处理DialogFragment弹窗消失事件
@Override
public void onDismiss() {
// 处理弹窗消失事件
// ...
}
}
```
在上述示例中,通过实现OnDialogDismissListener接口,并将MainActivity传递给DialogFragment的setOnDialogDismissListener方法,就可以在MainActivity中监听DialogFragment的弹窗消失事件了。当DialogFragment消失时,会调用MainActivity的onDismiss方法,可以在该方法中处理弹窗消失事件。<span class="em">1</span><span class="em">2</span>
#### 引用[.reference_title]
- *1* [dialogFragment弹窗处理器,背景模糊处理](https://download.csdn.net/download/mengchong55/10728678)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [Android DialogFragment的回调监听](https://blog.csdn.net/Life_s/article/details/80876187)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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