Android_对话框

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效果

代码

    //创建对话框    AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);    //设置图标    builder.setIcon(R.mipmap.ic_launcher);    //设置标题    builder.setTitle("确定退出!");    //设置确定按钮    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i) {            Toast.makeText(MainActivity.this, "点击了确定", Toast.LENGTH_LONG).show();        }    });    //设置取消按钮 如果只是要取消对话框 点击事件可以传NULL    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i) {            Toast.makeText(MainActivity.this, "点击了取消", Toast.LENGTH_LONG).show();        }    });    //显示对话框    builder.show();

多按钮

效果

代码

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);builder.setIcon(R.mipmap.ic_launcher);builder.setTitle("提示");builder.setMessage("是否保存文件?");builder.setPositiveButton("是", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialogInterface, int i) {        Toast.makeText(MainActivity.this, "是", Toast.LENGTH_LONG).show();    }});builder.setNegativeButton("否", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialogInterface, int i) {        Toast.makeText(MainActivity.this, "否", Toast.LENGTH_LONG).show();    }});builder.setNeutralButton("取消", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialogInterface, int i) {        Toast.makeText(MainActivity.this, "取消", Toast.LENGTH_LONG).show();    }});builder.show();

列表框

效果

代码

    //条目数组    final String[] arr = new String[]{            "香蕉", "苹果", "橘子", "西瓜", "葡萄"    };    AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);    builder.setTitle("请选择你喜欢的水果!");    //设置条目    builder.setItems(arr, new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i) {            Toast.makeText(MainActivity.this, arr[i], Toast.LENGTH_LONG).show();        }    });    //创建对话框并且显示    builder.create().show();

单选列表框

效果

代码

    //条目数据    final String[] arr = new String[]{            "香蕉", "苹果", "橘子", "西瓜", "葡萄"    };    AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);    builder.setTitle("请选择你喜欢的水果!");    //设置条目    builder.setSingleChoiceItems(arr, 0, new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i) {            Toast.makeText(MainActivity.this, arr[i], Toast.LENGTH_LONG).show();        }    });    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i) {        }    });    builder.setNeutralButton("取消", null);    builder.create().show();

进度条

效果

代码

        final ProgressDialog progressDialog = new ProgressDialog(MainActivity.this);        //设置标题        progressDialog.setTitle("正在下载...");        //设置风格        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);        //设置最大大进度        progressDialog.setMax(100);        progressDialog.setButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {            }        });        progressDialog.setButton2("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialogInterface, int i) {            }        });        progressDialog.show();        //创建线程模拟下载进度        new Thread(new Runnable() {            @Override            public void run() {                int i = 0;                while (i <= 100) {                    i++;                    //设置进度                    progressDialog.incrementProgressBy(i);                    try {                        Thread.sleep(300);                    } catch (InterruptedException e) {                        e.printStackTrace();                    }                }            }        }).start();

多选列表框

效果

代码

    //条目数据    final String[] arr = new String[]{            "香蕉", "苹果", "橘子", "西瓜", "葡萄"    };    AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);    builder.setTitle("请选择你喜欢的水果!");    //设置条目    builder.setMultiChoiceItems(arr, new boolean[]{false, false, false, false, false}, new DialogInterface.OnMultiChoiceClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i, boolean b) {            if (b) {                Toast.makeText(MainActivity.this, arr[i], Toast.LENGTH_LONG).show();            }        }    });    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialogInterface, int i) {        }    });    builder.setNeutralButton("取消", null);    builder.create().show();

自定义消息框

效果

代码

    final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);    View view1 = View.inflate(MainActivity.this, R.layout.item, null);    builder.setView(view1);    EditText et_user = view1.findViewById(R.id.et_user);    EditText et_pass = view1.findViewById(R.id.et_pass);    Button btn_login = view1.findViewById(R.id.btn_login);    Button btn_right = view1.findViewById(R.id.btn_right);    final AlertDialog alertDialog = builder.create();    btn_login.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View view) {            Toast.makeText(MainActivity.this, "登陆成功", Toast.LENGTH_LONG).show();            alertDialog.dismiss();        }    });    btn_right.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View view) {            Toast.makeText(MainActivity.this, "注册成功", Toast.LENGTH_LONG).show();            alertDialog.dismiss();        }    });    alertDialog.show();

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:layout_margin="10dp"    android:orientation="vertical"    android:padding="10dp">    <EditText        android:hint="请输入用户名"        android:id="@+id/et_user"        android:layout_width="match_parent"        android:layout_height="wrap_content" />    <EditText        android:hint="请输入密码"        android:id="@+id/et_pass"        android:layout_width="match_parent"        android:layout_height="wrap_content" />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal"        >        <Button            android:id="@+id/btn_login"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:text="登陆" />        <Button            android:id="@+id/btn_right"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:text="注册" />    </LinearLayout></LinearLayout>

读取进度框

效果

代码

ProgressDialog progressDialog = new ProgressDialog(MainActivity.this);progressDialog.setTitle("正在读取");progressDialog.setIndeterminate(true);progressDialog.setCancelable(true);progressDialog.show();

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