常见对话框

来源：互联网发布：c语言32个关键字举例编辑：程序博客网时间：2024/05/17 09:04
                / 点击按钮 弹出一个普通对话框                    public void click1(View v) {                        // 构建AlertDialog                        AlertDialog.Builder builder = new Builder(this);                        builder.setTitle("警告");                        builder.setMessage("世界上最遥远的距离是没有网络");                        builder.setPositiveButton("确定", new OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                                System.out.println("点击了确定按钮 执行的逻辑");                            }                        });                        builder.setNegativeButton("取消", new OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                                System.out.println("点击了取消按钮");                            }                        });                        // 最后一步一定要记得 show出来                        builder.show();                    }                    // 点击按钮 弹出一个单选对话框                    public void click2(View v) {                        // 构建AlertDialog                        AlertDialog.Builder builder = new Builder(this);                        builder.setTitle("请选择您喜欢的课");                        final String items[] = { "Android", "ios", "php", "c", "C++", "html" };                        builder.setSingleChoiceItems(items, -1, new OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                                // 取出点中的条目                                String item = items[which];                                Toast.makeText(getApplicationContext(), item, 1).show();                                // 关闭当前对话框                                dialog.dismiss();                            }                        });                        // 最后一步一定要记得 show出来                        builder.show();                    }                    // 点击按钮 弹出一个多选对话框                    public void click3(View v) {                        // 构建AlertDialog                        AlertDialog.Builder builder = new Builder(this);                        builder.setTitle("请选择您喜欢吃的水果");                        final String items[] = { "榴莲", "苹果", "葡萄", "香蕉", "黄瓜", "火龙果", "荔枝" };                        final boolean[] checkedItems = { true, false, false, false, false,                                false, true };                        builder.setMultiChoiceItems(items, checkedItems,                                new OnMultiChoiceClickListener() {                                    @Override                                    public void onClick(DialogInterface dialog, int which,                                            boolean isChecked) {                                    }                                });                        builder.setPositiveButton("确定", new OnClickListener() {                            @Override                            public void onClick(DialogInterface dialog, int which) {                                StringBuffer sb = new StringBuffer();                                // [1]把你选中的水果给取出来                                for (int i = 0; i < checkedItems.length; i++) {                                    if (checkedItems[i]) {                                        // 就证明是选中的                                        String fruit = items[i];                                        sb.append(fruit + " ");                                    }                                }                                Toast.makeText(getApplicationContext(), sb.toString(), 1)                                        .show();                                // 关闭对话框                                dialog.dismiss();                            }                        });                        // 最后一步一定要记得 show出来                        builder.show();                    }                    //进度条对话框                    public void click4(View v) {                        //与进度相关的控件都可以直接在子线程更新ui                         final ProgressDialog dialog = new ProgressDialog(this);                        dialog.setTitle("正在玩命加载ing");                        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);                        dialog.show();                        //设置进度条的最大值                         dialog.setMax(100);                        new Thread(){public void run() {                            for (int i = 0; i <= 100; i++) {                                //设置当前的进度                                 SystemClock.sleep(50);//睡眠50毫秒                                dialog.setProgress(i);                            }                            //关闭对话框                            dialog.dismiss();                        };}.start();                    }
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