Android AlertDialog六种创建方式案例详解

目录

• 一、setMessage：设置对话框内容为简单文本内容
• 二、setItem：设置文本框内容为简单列表项
• 三、setSingleChoiceItems()设置对话框内容为单选列表项
• 四、setMultiChoiceItems()设置对话框内容为多选项列表
• 五、setAdapter()设置对话框内容为自定义列表项（这里是一个布局）
• 六、setView()设置对话框为自定义View

// 创建构建器
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        // 设置参数
        builder.setTitle("请做出选择").setIcon(R.drawable.ic_launcher)
                .setMessage("我美不美")
                .setPositiveButton("美", new OnClickListener() {// 积极
                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which) {
                                // TODO Auto-generated method stub
                                Toast.makeText(MainActivity.this, "恭喜你答对了", 0)
                                        .show();
                            }
                        }).setNegativeButton("不美", new OnClickListener() {// 消极
                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which) {
                                // TODO Auto-generated method stub
                                Toast.makeText(MainActivity.this, "一点也不老实", 0)
                                        .show();
                            }
                        }).setNeutralButton("不知道", new OnClickListener() {// 中间级
                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which) {
                                // TODO Auto-generated method stub
                                Toast.makeText(MainActivity.this, "快睁开眼瞅瞅", 0)
                                        .show();
                            }
                        });
        builder.create().show();

// 创建数据
        final String[] items = new String[] { "北京", "上海", "广州", "深圳" };
        // 创建对话框构建器
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        // 设置参数
        builder.setIcon(R.drawable.ic_launcher).setTitle("提示")
                .setItems(items, new OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, items[which],
                                Toast.LENGTH_SHORT).show();
                    }
                });
        builder.create().show();

// 创建数据
        final String[] items = new String[] { "北京", "上海", "广州", "深圳" };
        // 创建对话框构建器
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        // 设置参数
        builder.setIcon(R.drawable.ic_launcher).setTitle("提示")
                .setSingleChoiceItems(items, 0, new OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub
                        Toast.makeText(MainActivity.this, items[which],
                                Toast.LENGTH_SHORT).show();
                    }
                });
        builder.create().show();

// 创建数据
        final String[] items = new String[] { "北京", "上海", "广州", "深圳" };
        // 创建对话框构建器
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setIcon(R.drawable.ic_launcher)
                .setTitle("提示")
                .setMultiChoiceItems(items,
                        new boolean[] { true, true, false, false, false },
                        new OnMultiChoiceClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which, boolean isChecked) {
                                // TODO Auto-generated method stub
                                if (isChecked) {
                                    Toast.makeText(MainActivity.this,
                                            items[which], 0).show();
                                }
                            }
                        });
        builder.create().show();

// 创建数据
        final String[] items = new String[] { "北京", "上海", "广州", "深圳" };
        // 创建对话框构建器
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("提示")
                .setIcon(R.drawable.ic_launcher)
                .setAdapter(
                        new ArrayAdapter<String>(MainActivity.this,
                                R.layout.item, R.id.tv, items),
                        new OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog,
                                    int which) {
                                // TODO Auto-generated method stub
                                Toast.makeText(MainActivity.this, items[which],
                                        0).show();
                            }
                        });
        builder.create().show();

// 创建对话框构建器
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        // 获取布局
        View view2 = View.inflate(MainActivity.this, R.layout.login, null);
        // 获取布局中的控件
        final EditText username = (EditText) view2.findViewById(R.id.username);
        final EditText password = (EditText) view2.findViewById(R.id.password);
        final Button button = (Button) view2.findViewById(R.id.btn_login);
        // 设置参数
        builder.setTitle("Login").setIcon(R.drawable.ic_launcher)
                .setView(view2);
        // 创建对话框
        final AlertDialog alertDialog = builder.create();
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                String uname = username.getText().toString().trim();
                String psd = password.getText().toString().trim();
                if (uname.equals("shenhua") && psd.equals("123456")) {
                    Toast.makeText(MainActivity.this, "登录成功", 0).show();
                }
                Toast.makeText(MainActivity.this, "登录失败", 0).show();
                alertDialog.dismiss();// 对话框消失
            }
        });
        alertDialog.show();