Android 使用原生列表对话框Dialog（单选、多选）

如果公司不是特殊要求，尽量还是使用系统原生的控件，维持一个好的生态，而不是闭着眼睛抄iOS效果。

直接上代码：

import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

public class DialogDemoActivity extends AppCompatActivity {
    private AlertDialog alertDialog1; //信息框
    private AlertDialog alertDialog2; //单选框
    private AlertDialog alertDialog3; //多选框

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_dialog_demo);
    }

    public void showList(View view) {
        String[] items = {"列表1", "列表2", "列表3", "列表4"};
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("普通列表对话框");
        builder.setItems(items, (dialogInterface, i) -> {
            Toast.makeText(DialogDemoActivity.this, items[i], Toast.LENGTH_SHORT).show();
            alertDialog1.dismiss();
        });
        alertDialog1 = builder.create();
        alertDialog1.show();
    }

    public void showSingleAlertDialog(View view) {
        String[] items = {"单选1", "单选2", "单选3", "单选4"};
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("单选列表对话框");
        builder.setSingleChoiceItems(items, 0, (dialogInterface, i) ->
                Toast.makeText(DialogDemoActivity.this, items[i], Toast.LENGTH_SHORT).show());

        builder.setPositiveButton("确定", (dialogInterface, i) -> alertDialog2.dismiss());
        builder.setNegativeButton("取消", (dialogInterface, i) -> alertDialog2.dismiss());

        alertDialog2 = builder.create();
        alertDialog2.show();
    }

    public void showMutiAlertDialog(View view) {
        String[] items = {"多选1", "多选2", "多选3", "多选4"};
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("多选列表对话框");
        builder.setMultiChoiceItems(items, null, (dialogInterface, i, isChecked) -> {
            // 处理选中和取消选中的事件
            if (isChecked) {
                Toast.makeText(DialogDemoActivity.this, "选择" + items[i], Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(DialogDemoActivity.this, "取消选择" + items[i], Toast.LENGTH_SHORT).show();
            }
        });
        builder.setPositiveButton("确定", (dialogInterface, i) -> alertDialog3.dismiss());
        builder.setNegativeButton("取消", (dialogInterface, i) -> alertDialog3.dismiss());

        alertDialog3 = builder.create();
        alertDialog3.show();
    }

}

简单布局添加点击事件绑定：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="showList"
        android:text="列表框" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="showSingleAlertDialog"
        android:text="单选列表" />

    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="showMutiAlertDialog"
        android:text="多选按钮" />

</LinearLayout>