一个自定义dialog提供确定和取消按钮的回调接口

public class MessageDialog {
Context context;
AlertDialog dialog;
AlertDialog.Builder builder;
private MessageDialog() {}
private static MessageDialog messageDialog = new MessageDialog();
public static MessageDialog getInstance() {return messageDialog;}

OnCancelClickListener cancelClickListener;
OnCommitClickListener commitClickListener;

public void showMessageDialog() {
if (dialog != null && !dialog.isShowing()) {
dialog.show();
}
}

public void cancelMessageDialog() {
if(dialog != null && dialog.isShowing()) {
dialog.cancel();
}
}

public AlertDialog generateDialog() {
if (builder == null) {
return null;
}
dialog = builder.create();
return dialog;
}

public void initDialog(Context context, String message) {
this.initDialog(context, "是", "否", message);
}
/**
* 初始化对话框
* @param context
* @param message
*/
public void initDialog(Context context, String btnCommit, String btnCancel, String message) {
this.context = context;
builder = new AlertDialog.Builder(context).setMessage(message).setPositiveButton(btnCommit, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
if(commitClickListener == null) {
return;
}
commitClickListener.onCommit();
}
}).setNegativeButton(btnCancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
if(cancelClickListener == null) {
return;
}
cancelClickListener.onCancel();
}
});
}

public OnCancelClickListener getCancelClickListener() {
return cancelClickListener;
}

public MessageDialog setCancelClickListener(OnCancelClickListener cancelClickListener) {
this.cancelClickListener = cancelClickListener;
return this;
}

public OnCommitClickListener getCommitClickListener() {
return commitClickListener;
}

public MessageDialog setCommitClickListener(OnCommitClickListener commitClickListener) {
this.commitClickListener = commitClickListener;
return this;
}

public void setAlertMessage(String message) {
builder.setMessage(message);
}

public interface OnCancelClickListener {
public void onCancel();
}

public interface OnCommitClickListener {
public void onCommit();
}

}

在别的类中使用的例子

MessageDialog messageDialog = MessageDialog.getInstance();messageDialog.initDialog(context, "是", "否", "报备成功，是否继续？");messageDialog.generateDialog();messageDialog.showMessageDialog();messageDialog.setCommitClickListener(new MessageDialog.OnCommitClickListener() {@Overridepublic void onCommit() {fragment.viewReset();}});messageDialog.setCancelClickListener(new MessageDialog.OnCancelClickListener() {@Overridepublic void onCancel() {fragment.getActivity().onBackPressed();}});