安卓——Dialog

- 日理万妓 2022-05-29 07:19 211阅读 0赞

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一、确认对话框

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二、单选对话框

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三、多选按钮

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四、列表对话框

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五、自定义对话框

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activity\_main.xml

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        tools:context="com.example.lenovo.alertdialog.MainActivity">
    
    
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="点击出现确认对话框"
        android:id="@+id/comfirm_btn1"
        />
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="单选对话框对话框"
            android:id="@+id/dialog_btn2"
            />
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="多选对话框对话框"
            android:id="@+id/dialog_btn3"
            />
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="列表对话框对话框"
            android:id="@+id/dialog_btn4"
            />
    
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="自定义对话框"
            android:id="@+id/dialog_btn5"
            />
    
    </LinearLayout>

dialog\_layout.xml

<?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"
        >
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="输入内容..."
        android:layout_weight="1"
    
        />
    
        <Button
            android:layout_width="wrap_content"
            android:text="提交"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dip"
            />
    </LinearLayout>
    
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:src="@drawable/topimg"
            />
    
    </LinearLayout>

MainActivity.java

package com.example.lenovo.alertdialog;
    
    import android.app.Activity;
    import android.app.AlertDialog;
    import android.content.DialogInterface;
    import android.os.Bundle;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.widget.Toast;
    
    
    /*
    
    用AlertDialog.Builder builder=new AlertDialog.Builder(this);来创建一个对话框
    然后builder.creat()方法实例化对话框
    
     */
    public class MainActivity extends Activity {
    
        String []Signle_list={"男","女","老师","学生"};
    
        String []Languag={"C++","Java","C","VB"};
    
        String []item_list={"老板","程序员","前端","测试"};
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            InitEvent();
        }
    
        void InitEvent(){
    
            findViewById(R.id.comfirm_btn1).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
    
                    showConfirmDialog();
                }
            });
    
            findViewById(R.id.dialog_btn2).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    showSingleChoice();
                }
            });
    
            findViewById(R.id.dialog_btn3).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
    
                    showMultiChoice();
                }
            });
    
            findViewById(R.id.dialog_btn4).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
    
                    showItemList();
                }
            });
    
            findViewById(R.id.dialog_btn5).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
    
                    showMadeByMyself();
                }
            });
        }
    
        //显示确认对话框的方法
        void showConfirmDialog(){
            AlertDialog.Builder builder=new AlertDialog.Builder(this);
            builder.setIcon(R.mipmap.ic_launcher);//添加图片
            builder.setTitle("确认对话框");//添加标题
            builder.setMessage("你打开了确认对话框");//添加内容
            //设置确认按钮
            builder.setPositiveButton("确认", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
    
                    Toast.makeText(MainActivity.this,"点击了确认按钮",Toast.LENGTH_SHORT).show();
                }
            });
    
            //设置取消按钮
            builder.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();
                }
            });
            //用builder creat一个dialog
          AlertDialog alertDialog=  builder.create();
          //显示
            alertDialog.show();
        }
    
        //显示单选对话框
        void showSingleChoice(){
            AlertDialog.Builder builder=new AlertDialog.Builder(this);
            builder.setIcon(R.mipmap.ic_launcher);//添加图片
            builder.setTitle("单选对话框");//添加标题
          //  builder.setMessage("你打开了单选对话框");//添加内容
            //必须把setMessage()方法去掉，内容显示在单选框里
           builder.setSingleChoiceItems(Signle_list, 0, new DialogInterface.OnClickListener() {
               @Override
               public void onClick(DialogInterface dialog, int which) {
    
                   String str=Signle_list[which];
                   Toast.makeText(MainActivity.this,str,Toast.LENGTH_SHORT).show();
               }
           });
            //用builder creat一个dialog
            AlertDialog alertDialog=  builder.create();
            //显示
            alertDialog.show();
        }
    
        void showMultiChoice(){
            AlertDialog.Builder builder=new AlertDialog.Builder(this);
            builder.setIcon(R.mipmap.ic_launcher);//添加图片
            builder.setTitle("多选对话框");//添加标题
            //  builder.setMessage("你打开了单选对话框");//添加内容
            //必须把setMessage()方法去掉，内容显示在单选框里
          builder.setMultiChoiceItems(Languag, null, new DialogInterface.OnMultiChoiceClickListener() {
              @Override
              public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                  if(isChecked){
                      Toast.makeText(MainActivity.this,"你选择了"+Languag[which],Toast.LENGTH_SHORT).show();
                  }else{
                      Toast.makeText(MainActivity.this,"你取消了"+Languag[which],Toast.LENGTH_SHORT).show();
                  }
              }
          });
            //设置取消按钮
            builder.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();
                }
            });
            //用builder creat一个dialog
            AlertDialog alertDialog=  builder.create();
            //显示
            alertDialog.show();
        }
    
        void showItemList(){
            AlertDialog.Builder builder=new AlertDialog.Builder(this);
            builder.setIcon(R.mipmap.ic_launcher);//添加图片
            builder.setTitle("列表对话框");//添加标题
            //  builder.setMessage("你打开了单选对话框");//添加内容
            //必须把setMessage()方法去掉，内容显示在单选框里
            builder.setItems(item_list,new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
    
                    Toast.makeText(MainActivity.this,"我动了"+item_list[which],Toast.LENGTH_SHORT).show();
                }
            });
            //设置取消按钮
            builder.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();
                }
            });
            //用builder creat一个dialog
            AlertDialog alertDialog=  builder.create();
            //显示
            alertDialog.show();
        }
        void showMadeByMyself(){
    
            //获取布局对象
            LayoutInflater inflater=LayoutInflater.from(this);
            View view=inflater.inflate(R.layout.dialog_layout,null);
    
            AlertDialog.Builder builder=new AlertDialog.Builder(this);
            builder.setIcon(R.mipmap.ic_launcher);//添加图片
            builder.setTitle("自定义对话框");//添加标题
            //  builder.setMessage("你打开了单选对话框");//添加内容
            //必须把setMessage()方法去掉，内容显示在单选框里
            //自定义对话框加载自定义布局
           builder.setView(view);
            //设置取消按钮
            builder.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();
                }
            });
            //用builder creat一个dialog
            AlertDialog alertDialog=  builder.create();
            //显示
            alertDialog.show();
        }
    }

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