带有ListView的Dialog

一、简述：

        平时我们用dialog用的比较多，最近突然想起来可以在diaolog里面放个ListView那样的话可以实现好多功能，于是自己就写了一个，好了不说了开始撸代码！

二、代码：

     1.先写一个类继承Dialog:      

•         自定义dialog
  

public abstract class ChooseItemDialogWidget extends Dialog {  private Context mContext;  private View mDialogLayout;  private ImageView cancelIv;  private Button sureBtn;  public ChooseItemDialogWidget(@NonNull Context context) {    super(context);    this.mContext = context;    initView();  }  /**   * 自定义布局及主题的构造方法   *   * @param context 上下文   * @param theme 主题   */  public ChooseItemDialogWidget(@NonNull Context context, int theme) {    super(context, theme);    this.mContext = context;    initView();  }  private void initView() {    View view = View.inflate(mContext, R.layout.dialog_choose_list, null);    cancelIv = (ImageView) view.findViewById(R.id.iv_cancel);    RelativeLayout containerRl = (RelativeLayout) view.findViewById(R.id.rl_container);    sureBtn = (Button) view.findViewById(R.id.btn_sure);    mDialogLayout = setDialogLayout();    containerRl.addView(mDialogLayout);    setContentView(view);    initListener();  }  /*  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    // 指定布局    this.setContentView(R.layout.dialog_choose_list);    cancelIv = (ImageView) findViewById(R.id.iv_cancel);    RelativeLayout containerRl = (RelativeLayout) findViewById(R.id.rl_container);    sureBtn = (Button) findViewById(R.id.btn_sure);    mDialogLayout = setDialogLayout();    containerRl.addView(mDialogLayout);    initListener();  }*/  public void setButtonVisible(boolean visible){    if (true ==visible) {      sureBtn.setVisibility(View.VISIBLE);    }else {      sureBtn.setVisibility(View.GONE);    }  }  private void initListener() {    cancelIv.setOnClickListener(        new View.OnClickListener() {          @Override          public void onClick(View v) {            mOnDialogListener.onCancel();          }        });    sureBtn.setOnClickListener(        new View.OnClickListener() {          @Override          public void onClick(View v) {            mOnDialogListener.onSure();          }        });  }  public abstract View setDialogLayout();  private OnDialogListener mOnDialogListener;  public void setOnDialogListener(OnDialogListener onDialogListener) {    this.mOnDialogListener = onDialogListener;  }  public interface OnDialogListener {    void onCancel();    void onSure();  }}

• dialog布局文件
  

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:gravity="center">    <LinearLayout        android:layout_width="300dp"        android:layout_height="wrap_content"        android:gravity="center"        android:orientation="vertical">        <RelativeLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_gravity="center_vertical"            android:padding="10dp">            <TextView                android:layout_width="match_parent"                android:layout_height="100px"                android:gravity="center"                android:text="请选择:"                android:textColor="@android:color/black"                android:textSize="18sp" />            <ImageView                android:id="@+id/iv_cancel"                android:layout_width="18dp"                android:layout_height="18dp"                android:layout_alignParentRight="true"                android:layout_centerVertical="true"                android:src="@mipmap/icon_search" />        </RelativeLayout>        <View            android:layout_width="match_parent"            android:layout_height="1dp"            android:background="#D1D1D1" />        <RelativeLayout            android:id="@+id/rl_container"            android:layout_width="match_parent"            android:layout_height="300dp" />        <View            android:layout_width="match_parent"            android:layout_height="1dp"            android:layout_marginBottom="20dp"            android:background="#D1D1D1" />        <Button            android:id="@+id/btn_sure"            android:layout_width="wrap_content"            android:layout_height="match_parent"            android:layout_marginBottom="20dp"            android:background="@drawable/select_btn_sure"            android:text="确定"            android:textColor="#1E90FF"            android:textSize="18sp"            android:visibility="gone" />    </LinearLayout></RelativeLayout>

• dialog主题
  

<style name="dialog_choose_list" parent="@android:style/Theme.Dialog">    <item name="android:windowFrame">@null</item>    <item name="android:windowIsFloating">true</item>    <item name="android:windowIsTranslucent">false</item>    <item name="android:windowNoTitle">true</item>    <item name="android:windowBackground">@drawable/shape_dialog_bg</item>    <item name="android:backgroundDimEnabled">true</item></style>

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android">    <gradient        android:angle="90"        android:endColor="#ffffff"        android:startColor="#ffffff" />    <solid android:color="#ffffff" />    <corners        android:bottomLeftRadius="15dp"        android:bottomRightRadius="15dp"        android:topLeftRadius="15dp"        android:topRightRadius="15dp" /></shape>

  2.封装成一个工具类（这是我没事找事自己简单封装的，也可以不封装这个东西，直接调用代码）

public abstract class CreateListDialogUtils {  private Context mContext;  private boolean mVisible;  public ChooseItemDialogWidget dialog;  public CreateListDialogUtils(Context context, boolean visible) {    this.mContext = context;    this.mVisible = visible;    initDialog();  }  public void initDialog() {    dialog =        new ChooseItemDialogWidget(mContext, R.style.dialog_choose_list) {          @Override          public View setDialogLayout() {            return setDialogView();          }        };    dialog.show();    dialog.setButtonVisible(mVisible);    dialog.setOnDialogListener(        new ChooseItemDialogWidget.OnDialogListener() {          @Override          public void onCancel() {            dialog.dismiss();          }          @Override          public void onSure() {            onDialogSureListener.sure();          }        });  }  private OnDialogSureListener onDialogSureListener;  public abstract View setDialogView();  public void setOnDialogLisener(OnDialogSureListener onDialogSureListener) {    this.onDialogSureListener = onDialogSureListener;  }  public interface OnDialogSureListener {    void sure();  }}

3.activity中的调用：

public class SecondActivity extends AppCompatActivity {  private CreateListDialogUtils dialogUtils;  private Button click;  private ChooseItemDialogWidget dialog;  @Override  protected void onCreate(@Nullable Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_second);    click = (Button) findViewById(R.id.btn_click);    init();  }  private void init() {    click.setOnClickListener(        new View.OnClickListener() {          @Override          public void onClick(View v) {            dialogUtils =                new CreateListDialogUtils(SecondActivity.this, false) {                  @Override                  public View setDialogView() {                    return SecondActivity.this.setDialogView();                  }                };          }        });  }  private View setDialogView() {    View view = View.inflate(this, R.layout.dialog_choose_list_item, null);    ListView listLv = (ListView) view.findViewById(R.id.lv_list);    initListView(listLv);    return view;  }  private void initListView(ListView listLv) {    List<User> userList = new ArrayList<>();    for (int i = 0; i < 20; i++) {      User user = new User("帅哥" + i + "号！");      userList.add(user);    }    ListAdapter adapter = new ListAdapter(SecondActivity.this, userList);    listLv.setAdapter(adapter);    listLv.setOnItemClickListener(        new AdapterView.OnItemClickListener() {          @Override          public void onItemClick(AdapterView<?> parent, View view, int position, long id) {            User u = (User) parent.getItemAtPosition(position);            click.setText(u.getName());            dialogUtils.dialog.dismiss();          }        });  }  @Override  protected void onDestroy() {    super.onDestroy();    if (dialogUtils.dialog != null) {      dialogUtils.dialog.dismiss();    }  }}

• activity的布局文件
  

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:gravity="center"    android:orientation="vertical">    <Button        android:id="@+id/btn_click"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="点击" /></LinearLayout>

• User bean
  

@NoArgsConstructor@AllArgsConstructorpublic class User implements Serializable {  @Setter(AccessLevel.PUBLIC)  @Getter(AccessLevel.PUBLIC)  @NonNull  public String name;  }

• Adapter文件
  

public class ListAdapter extends BaseAdapter {  private List<?> mList;  private Context mContext;  public ListAdapter(Context context, @NonNull List<?> list) {    this.mContext = context;    this.mList = list;  }  @Override  public int getCount() {    return mList.size();  }  @Override  public Object getItem(int position) {    return mList.get(position);  }  @Override  public long getItemId(int position) {    return position;  }  @Override  public View getView(int position, View convertView, ViewGroup parent) {    ViewHolder viewHolder;    if (convertView == null) {      convertView = View.inflate(mContext, R.layout.item_choose_course, null);      viewHolder = new ViewHolder(convertView);      convertView.setTag(viewHolder);    } else {      viewHolder = (ViewHolder) convertView.getTag();    }    User user = (User) mList.get(position);    viewHolder.chooseCourseTxtTv.setText(user.getName());    return convertView;  }  static class ViewHolder {    @BindView(R.id.tv_choose_course_txt)    TextView chooseCourseTxtTv;    ViewHolder(View view) {      ButterKnife.bind(this, view);    }  }}

• adapter布局文件
  

<?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="wrap_content"    android:orientation="vertical">    <RelativeLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="#ffffff"        android:padding="15dp">        <TextView            android:id="@+id/tv_choose_course_txt"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerVertical="true"            android:textColor="#333"            android:textSize="16sp" />    </RelativeLayout></LinearLayout>

三、总结：

总的来说比较简单的一个实现吧，代码比较简单所以我就没有上传Demo，如果有需要的可以直接复制代码，然后改改就可以直接使用了，如果对你有用记得点赞奥亲！