<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="300dp"
  android:layout_height="180dp"
  android:gravity="center"
  android:orientation="vertical">

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:background="@android:color/holo_green_light">

    <TextView
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:gravity="center_vertical"
      android:text="IP设置"
      android:textColor="#fff"
      android:textSize="24sp" />
  </LinearLayout>

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:background="#fff"
    android:gravity="center"
    android:orientation="horizontal"
    android:padding="5dp">

    <EditText
      android:id="@+id/et_ip1"
      style="@style/textview14sp"
      android:layout_weight="1"
      android:inputType="phone"
      android:maxLength="3"
      android:textColor="@color/colorPrimary" />

    <EditText
      android:id="@+id/et_ip2"
      style="@style/textview14sp"
      android:layout_weight="1"
      android:inputType="phone"
      android:maxLength="3"
      android:textColor="@color/colorPrimary" />

    <EditText
      android:id="@+id/et_ip3"
      style="@style/textview14sp"
      android:layout_weight="1"
      android:inputType="phone"
      android:maxLength="3"
      android:textColor="@color/colorPrimary" />

    <EditText
      android:id="@+id/et_ip4"
      style="@style/textview14sp"
      android:layout_weight="1"
      android:inputType="phone"
      android:maxLength="3"
      android:textColor="@color/colorPrimary" />
  </LinearLayout>

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="45dp"
    android:orientation="horizontal">

    <Button
      android:id="@+id/btn_ipok"
      android:layout_width="0dp"
      android:layout_height="match_parent"
      android:layout_weight="1"
      android:background="@android:color/holo_green_light"
      android:text="确认"
      android:textColor="#fff"
      android:textSize="30sp" />

    <View
      android:layout_width="1dp"
      android:layout_height="match_parent"
      android:background="#fff" />

    <Button
      android:id="@+id/btn_ipcancle"
      android:layout_width="0dp"
      android:layout_height="match_parent"
      android:layout_weight="1"
      android:background="@android:color/holo_green_light"
      android:text="取消"
      android:textColor="#fff"
      android:textSize="30sp" />
  </LinearLayout>
</LinearLayout>

<!-- 自定义对话框样式 -->
  <style name="dialog_custom" parent="android:style/Theme.Dialog">
    <item name="android:windowFrame">@null</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:background">#00000000</item>
    <item name="android:windowBackground">@android:color/transparent</item>
  </style>

public class IP_dialog extends Dialog {
  private Button btnOk, btnCancle;
  private EditText ip1, ip2, ip3, ip4;
  public static String ip = "";

  public IP_dialog(Context context) {
    super(context, R.style.dialog_custom);
  }

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

  /*初始化组件*/
  private void initView() {
    btnOk = (Button) findViewById(R.id.btn_ipok);
    btnCancle = (Button) findViewById(R.id.btn_ipcancle);
    ip1 = (EditText) findViewById(R.id.et_ip1);
    ip2 = (EditText) findViewById(R.id.et_ip2);
    ip3 = (EditText) findViewById(R.id.et_ip3);
    ip4 = (EditText) findViewById(R.id.et_ip4);
  }

  /*监听事件*/
  private void initEvet() {
    btnOk.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        ip = getIP();
        Log.e("IP--->", ip);
        dismiss();
      }
    });
    btnCancle.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        dismiss();
      }
    });
  }

  /*获取输入的IP值*/
  private String getIP() {
    String ip = ip1.getText().toString().trim() + "."
        + ip2.getText().toString().trim() + "."
        + ip3.getText().toString().trim() + "."
        + ip4.getText().toString().trim();
    return ip;
  }
}