对话框

最新推荐文章于 2025-08-20 15:04:37 发布

转载最新推荐文章于 2025-08-20 15:04:37 发布 · 61 阅读

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原文链接：http://www.cnblogs.com/nangongyibin/p/10230563.html

文章标签：

#java #移动开发

本文详细介绍了Android中对话框的使用，包括普通对话框、单选对话框、多选对话框和进度条对话框的创建与逻辑实现。通过具体代码示例，展示了如何设置标题、选项及监听器，为开发者提供了实用的参考。

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对话框

对话框分类普通(alertdialog) 单选多选进度条对话框
- 单选对话框逻辑

                AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
                dialog.setTitle("请选择爱人:");
                final String[] strings = {"成青青", "B", "C"};
                dialog.setSingleChoiceItems(strings, 0, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        String string = strings[which];
                        Toast.makeText(MainActivity.this, "" + string, Toast.LENGTH_SHORT).show();
                        dialog.dismiss();
                    }
                });
                dialog.show();

- 多选对话框

                AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
                dialog.setTitle("请选择这学期的选修课:");
                final String[] strings = {"java", "c", "c++", "android", "iso"};
                final boolean[] checks = {false, false, false, true, false};
                dialog.setMultiChoiceItems(strings, checks, new DialogInterface.OnMultiChoiceClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which, boolean isChecked) {

                    }
                });
                dialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        StringBuffer sb = new StringBuffer();
                        for (int i = 0; i < strings.length; i++) {
                            if (checks[i]) {
                                String string = strings[i];
                                sb.append(string + "  ");
                            }
                        }
                        Toast.makeText(MainActivity.this, "" + sb, Toast.LENGTH_SHORT).show();
                        dialog.dismiss();
                    }
                });
                dialog.show();

- 进度条对话框

                dialog = new ProgressDialog(MainActivity.this);
                dialog.setMessage("正在加载中");
                dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                dialog.show();
                new Thread() {
                    @Override
                    public void run() {
                        dialog.setMax(100);
                        for (int i = 0; i < 100; i++) {
                            dialog.setProgress(i);
                            SystemClock.sleep(50);
                        }
                        dialog.dismiss();
                        super.run();
                    }
                }.start();