Android开发—弹出列表、单选、多选框

效果图如下：

需要建一个menu

xml布局如下：

<?xml version="1.0" encoding="utf-8"?>

Java代码如下：

import android.content.DialogInterface;import android.support.v7.app.AlertDialog;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.Toast; public class MainActivity extends AppCompatActivity {     private AlertDialog alertDialog1; //信息框    private AlertDialog alertDialog2; //单选框    private AlertDialog alertDialog3; //多选框     private Button button1;    private Button button2;    private Button button3;     @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        init();    }     public void init(){        button1 = (Button) findViewById(R.id.button1);        button2 = (Button) findViewById(R.id.button2);        button3 = (Button) findViewById(R.id.button3);    }     //@Override    //public boolean onCreateOptionsMenu(Menu menu) {    //    getMenuInflater().inflate(R.menu.mian, menu);    //    return true;    //}     public void showList(View view){        final String[] items = {"列表1", "列表2", "列表3", "列表4"};        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);        alertBuilder.setTitle("这是列表框");        alertBuilder.setItems(items, new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {                Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show();                alertDialog1.dismiss();            }        });        alertDialog1 = alertBuilder.create();        alertDialog1.show();    }     public void showSingleAlertDialog(View view){        final String[] items = {"单选1", "单选2", "单选3", "单选4"};        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);        alertBuilder.setTitle("这是单选框");        alertBuilder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {                Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show();            }        });         alertBuilder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {                alertDialog2.dismiss();            }        });         alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {                alertDialog2.dismiss();            }        });         alertDialog2 = alertBuilder.create();        alertDialog2.show();    }     public void showMutilAlertDialog(View view){        final String[] items = {"多选1", "多选2", "多选3", "多选4"};        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);        alertBuilder.setTitle("这是多选框");        /**         *第一个参数:弹出框的消息集合，一般为字符串集合         * 第二个参数：默认被选中的，布尔类数组         * 第三个参数：勾选事件监听         */        alertBuilder.setMultiChoiceItems(items, null, new DialogInterface.OnMultiChoiceClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i, boolean isChecked) {                if (isChecked){                    Toast.makeText(MainActivity.this, "选择" + items[i], Toast.LENGTH_SHORT).show();                }else {                    Toast.makeText(MainActivity.this, "取消选择" + items[i], Toast.LENGTH_SHORT).show();                }            }        });        alertBuilder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {                alertDialog3.dismiss();            }        });         alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {                alertDialog3.dismiss();            }        });          alertDialog3 = alertBuilder.create();        alertDialog3.show();    }}

ฅ՞•ﻌ•՞ฅ ~ 厚着脸皮要个赞赏哈 ~ ฅ՞•ﻌ•՞ฅ

效果图如下：

xml布局如下：

Java代码如下：

更多相关文章

随机推荐