android 学习随笔二十九（自定义监听）

来源：互联网发布：重做系统数据恢复编辑：程序博客网时间：2024/05/22 12:52

package com.itheima.momo.dialog;import com.itheima.momo.R;import android.app.AlertDialog;import android.content.Context;import android.os.Bundle;import android.view.View;public abstract class BaseDialog extends AlertDialog implements android.view.View.OnClickListener{protected BaseDialog(Context context) {//通过构造指定主题,主题中就已经设置了弧形边角的背景super(context, R.style.BaseDialog);// TODO Auto-generated constructor stub}@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);initView();initListener();initData();}public abstract void initView();public abstract void initListener();public abstract void initData();public abstract void processClick(View v);/** 这个是继承得来的方法，用这个方法后，一个activity里面所有组件的按钮都只要去* 实现抽象方法就行，组件上就会自动的挂上侦听，而不用每个组件都写一个点击事件* 了，这样可以提高代码的复用性，还有代码的间接性。*/@Overridepublic void onClick(View v) {processClick(v);}}

package com.itheima.momo.dialog;import com.itheima.momo.R;import android.content.Context;import android.view.View;import android.widget.Button;import android.widget.TextView;public class ConfirmDialog extends BaseDialog {private String title;private String message;private TextView tv_dialog_title;private TextView tv_dialog_message;private Button bt_dialog_cancel;private Button bt_dialog_confirm;private OnConfirmListener onConfirmListener;public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}protected ConfirmDialog(Context context) {super(context);// TODO Auto-generated constructor stub}//在类中写一个静态方法，直接获取本类的对象。public static void showDialog(Context context, String title, String message, OnConfirmListener confirmListener){ConfirmDialog dialog = new ConfirmDialog(context);dialog.setTitle(title);dialog.setMessage(message);dialog.setConfirmListener(confirmListener);dialog.show();}@Overridepublic void initView() {//设置对话框显示的布局文件setContentView(R.layout.dialog_confirm);tv_dialog_title = (TextView) findViewById(R.id.tv_dialog_title);tv_dialog_message = (TextView) findViewById(R.id.tv_dialog_message);bt_dialog_cancel = (Button) findViewById(R.id.bt_dialog_cancel);bt_dialog_confirm = (Button) findViewById(R.id.bt_dialog_confirm);}@Overridepublic void initListener() {bt_dialog_cancel.setOnClickListener(this);bt_dialog_confirm.setOnClickListener(this);}@Overridepublic void initData() {tv_dialog_title.setText(title);tv_dialog_message.setText(message);}@Overridepublic void processClick(View v) {switch (v.getId()) {//如果取消按钮按下时，侦听存在，那么调用侦听的onCancelcase R.id.bt_dialog_cancel:if(onConfirmListener != null){onConfirmListener.onCancel();}break;case R.id.bt_dialog_confirm:if(onConfirmListener != null){onConfirmListener.onConfirm();}break;}//对话框消失dismiss();}public void setConfirmListener(OnConfirmListener confirmListener) {this.onConfirmListener = confirmListener;}//自己定义一个接口，为了保证其能够被多次复用。public interface OnConfirmListener{void onCancel();void onConfirm();}}

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private void showDeleteDialog() {
ConfirmDialog.showDialog(getActivity(), "提示", "真的要删除会话吗？", new OnConfirmListener() {

@Override
public void onConfirm() {
deleteSms();
}

@Override
public void onCancel() {
}
});

}

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android 学习随笔二十九（自定义监听 ）

android 学习随笔二十九（自定义监听）