Android常用对话框大全——AlertDialog

• 普通的对话框

AlertDialog dialog = new AlertDialog.Builder(this)
                .setIcon(R.mipmap.icon)//设置标题的图片
                .setTitle("我是对话框")//设置对话框的标题
                .setMessage("我是对话框的内容")//设置对话框的内容
                //设置对话框的按钮
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, "点击了取消按钮", Toast.LENGTH_SHORT).show();
                        dialog.dismiss();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, "点击了确定的按钮", Toast.LENGTH_SHORT).show();
                        dialog.dismiss();
                    }
                }).create();
        dialog.show();

• 列表对话框

        final String items[] = {"我是Item一", "我是Item二", "我是Item三", "我是Item四"};
        AlertDialog dialog = new AlertDialog.Builder(this)
                .setIcon(R.mipmap.icon)//设置标题的图片
                .setTitle("列表对话框")//设置对话框的标题
                .setItems(items, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, items[which], Toast.LENGTH_SHORT).show();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                }).create();
        dialog.show();

• 单选列表对话框

final String items[] = {"我是Item一", "我是Item二", "我是Item三", "我是Item四"};
        AlertDialog dialog = new AlertDialog.Builder(this)
                .setIcon(R.mipmap.icon)//设置标题的图片
                .setTitle("单选列表对话框")//设置对话框的标题
                .setSingleChoiceItems(items, 1, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, items[which], Toast.LENGTH_SHORT).show();
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                }).create();
        dialog.show();

• 多选列表对话框

final String items[] = {"我是Item一", "我是Item二", "我是Item三", "我是Item四"};
        final boolean checkedItems[] = {true, false, true, false};
        AlertDialog dialog = new AlertDialog.Builder(this)
                .setIcon(R.mipmap.icon)//设置标题的图片
                .setTitle("多选对话框")//设置对话框的标题
                .setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                        checkedItems[which] = isChecked;
                    }
                })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        for (int i = 0; i < checkedItems.length; i++) {
                            if (checkedItems[i]) {
                                Toast.makeText(MainActivity.this, "选中了" + i, Toast.LENGTH_SHORT).show();
                            }
                        }
                        dialog.dismiss();
                    }

                }).create();

        dialog.show();

• 完全自定义的对话框

1.首先我们需要自定义Dialog的style，让他自己本有的东西全部透明，然后在设置我们自己的内容就可以达到完全自定义的效果了。

<!--对话框的样式-->
    <style name="NormalDialogStyle">
        <!--对话框背景 -->
        <item name="android:windowBackground">@android:color/transparent</item>
        <!--边框 -->
        <item name="android:windowFrame">@null</item>
        <!--没有标题 -->
        <item name="android:windowNoTitle">true</item>
        <!-- 是否浮现在Activity之上 -->
        <item name="android:windowIsFloating">true</item>
        <!--背景透明 -->
        <item name="android:windowIsTranslucent">false</item>
        <!-- 是否有覆盖 -->
        <item name="android:windowContentOverlay">@null</item>
        <!--进出的显示动画 -->
        <item name="android:windowAnimationStyle">@style/normalDialogAnim</item>
        <!--背景变暗-->
        <item name="android:backgroundDimEnabled">true</item>
    </style>
    <!--对话框动画-->
    <style name="normalDialogAnim" parent="android:Animation">
        <item name="@android:windowEnterAnimation">@anim/normal_dialog_enter</item>
        <item name="@android:windowExitAnimation">@anim/normal_dialog_exit</item>
    </style>

2.接下来就可以为对话框设置我们自定义的style了.

 /**
     * 自定义对话框
     */
    private void customDialog() {
        final Dialog dialog = new Dialog(this, R.style.NormalDialogStyle);
        View view = View.inflate(this, R.layout.dialog_normal, null);
        TextView cancel = (TextView) view.findViewById(R.id.cancel);
        TextView confirm = (TextView) view.findViewById(R.id.confirm);
        dialog.setContentView(view);
        //使得点击对话框外部不消失对话框
        dialog.setCanceledOnTouchOutside(true);
        //设置对话框的大小
        view.setMinimumHeight((int) (ScreenSizeUtils.getInstance(this).getScreenHeight() * 0.23f));
        Window dialogWindow = dialog.getWindow();
        WindowManager.LayoutParams lp = dialogWindow.getAttributes();
        lp.width = (int) (ScreenSizeUtils.getInstance(this).getScreenWidth() * 0.75f);
        lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
        lp.gravity = Gravity.CENTER;
        dialogWindow.setAttributes(lp);
        cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });
        confirm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });
        dialog.show();
    }