一个自定义dialog提供确定和取消按钮的回调接口

来源：互联网发布：佛家讲究因果知乎编辑：程序博客网时间：2024/05/22 03:09

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() {    @Override    public void onCommit() {        fragment.viewReset();    }});messageDialog.setCancelClickListener(new MessageDialog.OnCancelClickListener() {    @Override    public void onCancel() {        fragment.getActivity().onBackPressed();    }});

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