如何将Listview链接到AlertDialog

时间：2017-07-12 11:24:02

标签： android listview dialog android-alertdialog

我创建了一个单独的ListView类，它将显示该公司的名称。现在我想将此listview传递给Main Activity上的AlertDialog。我创建了一个列表布局和一个文本布局来显示列表的项目。现在我为Alertdialog创建了另一个布局。我想在第一页按下按钮显示此对话框。如何在此Alerdialog中传递listView。这是我的主要活动代码

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.option_menu_laout);

    Button button=(Button) findViewById(R.id.button);

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            showDialog();
        }
    });
}

public void showDialog(){

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    LayoutInflater inflater = this.getLayoutInflater();
    View dialogView = inflater.inflate(R.layout.diallog_layout, null);
    builder.setView(dialogView);
    builder.setCancelable(true);
    builder.setTitle("Contact");

    ListViewActivity listViewActivity=new ListViewActivity();

    //how can I show li list item here?
  }
}

我的ListViewActivityClass是

public class ListViewActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.list_layout);
    populateListView();

}
private void populateListView() {
    //Create list of items
    String[] company= getResources().getStringArray(R.array.company_name);
    //Build Adapter
    ArrayAdapter<String> adapter=new ArrayAdapter<String>(
            this, //Context for the Activity
            R.layout.first_alertlist_textstyle,
            android.R.id.text1,//Layout to use
            company); //Items to be displayed

    //Configure the list view
    ListView companyList =(ListView) findViewById(R.id.list_view);
    TextView alertTitle = (TextView) findViewById(R.id.title);
    companyList.setAdapter(adapter);

  }
}

我的列表布局是

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

<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/list_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    />
</LinearLayout>

文本布局以显示列表项

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

<TextView
    android:id="@android:id/text1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:gravity="center"
    />
</LinearLayout>

对话框布局

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

<TextView
    android:id="@+id/title"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Contact"
    android:gravity="center_horizontal"
    android:textAppearance="@style/TextAppearance.AppCompat.Large"
    android:layout_gravity="center"
    />

  </LinearLayout>

修改代码 

public class MainActivity extends AppCompatActivity {

ArrayList<Bean> bean=new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.option_menu_laout);

    Button button=(Button) findViewById(R.id.button);

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Alert();
            Toast.makeText(MainActivity.this, "Dialog", Toast.LENGTH_SHORT).show();
        }
    });
}

private void Alert(){
    ArrayList<Bean> bean=new ArrayList<>();
    View view = getLayoutInflater().inflate(R.layout.rating_dialog_layout, null);
    ListView details = (ListView) view.findViewById(R.id.ratingListViewId);
    Adapter adapter = new Adapter(bean,getApplicationContext());
    details.setAdapter(adapter);

    final AlertDialog.Builder builder = new android.support.v7.app.AlertDialog.Builder(MainActivity.this);
    builder.setTitle("Select");
    builder.setView(view);

    builder.setCancelable(false);
    builder.setNegativeButton("close", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialogInterface, int i) {
            dialogInterface.dismiss();
        }
    });
    details.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(final AdapterView<?> adapterView, View view, final int i, long l) {

            ;
        }
    });
    AlertDialog alertDialog = builder.create();
    alertDialog.show();
}

}

5 个答案:

答案 0 :(得分：0)

只需创建一个自定义对话框，如下所示：

http://www.edumobile.org/android/custom-listview-in-a-dialog-in-android/

或参见下面的示例：

private void showDialog(){

    final Dialog dialog = new Dialog(this);

    View view = getLayoutInflater().inflate(R.layout.dialog_main, null);

    ListView lv = (ListView) view.findViewById(R.id.custom_list);

    // Change MyActivity.this and myListOfItems to your own values
    CustomListAdapterDialog clad = new CustomListAdapterDialog(MyActivity.this, myListOfItems);

    lv.setAdapter(clad);

    lv.setOnItemClickListener(........);

    dialog.setContentView(view);

    dialog.show();

}

答案 1 :(得分：0)

call this on Button Click
 private void Alert(){
        View view = getLayoutInflater().inflate(R.layout.rating_dialog_layout, null);
        ListView details = (ListView) view.findViewById(R.id.ratingListViewId);
        Adapter adapter = new Adapter(bean,getApplicationContext());
        details.setAdapter(adapter);

        android.support.v7.app.AlertDialog.Builder builder = new android.support.v7.app.AlertDialog.Builder(MainActivity.this);
        builder.setTitle("Select");
        builder.setView(view);

        builder.setCancelable(false);
        builder.setNegativeButton("close", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                dialogInterface.dismiss();
            }
        });
        detailsbtn.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(final AdapterView<?> adapterView, View view, final int i, long l) {

                alertdialog.dismiss();
            }
        });
        alertdialog = builder.create();
        alertdialog.show();
    }

use Bean Class

public class Bean {
    public Bean(String _id, String description) {
        this._id = _id;
        this.description = description;
    }

    String _id;
    String description;

    public String get_id() {
        return _id;
    }

    public void set_id(String _id) {
        this._id = _id;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }
}

use Adapter

public class Adapter extends BaseAdapter {

    Context context;
    List<Bean> list=new ArrayList<Bean>();

    public Adapter(ArrayList<Bean> list, Context context) {
        this.context = context;
        this.list = list;
    }

    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        return list.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {


        LayoutInflater inflater=LayoutInflater.from(context);
        View v=inflater.inflate(R.layout.rating_layout_row,null);

        TextView idTv= (TextView) v.findViewById(R.id.id);
        TextView nameTv= (TextView) v.findViewById(R.id.name);

        idTv.setText(String.valueOf(list.get(position)._id()));
        nameTv.setText(list.get(position).getDescription());
        return v;
    }
}

创建rating_layout_row 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="@dimen/activity_vertical_margin">

    <TextView
        android:id="@+id/id"
        android:textColor="#000000"
        android:layout_width="match_parent"
        android:visibility="gone"
        android:layout_height="wrap_content"/>

    <TextView
        android:id="@+id/name"
        android:textColor="#000000"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>



</LinearLayout>

创建自定义布局rating_dialog_layout 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"

    android:layout_height="match_parent">

    <ListView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/ratingListViewId"
        android:layout_gravity="center_horizontal" />
</LinearLayout>

答案 2 :(得分：0)

您可以使用以下代码创建一个简单的列表提醒对话框... 

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(mContext);
alertDialogBuilder.setTitle("Awesome alert")
.setCancelable(false)
.setAdapter(new NotificationListAdapter(mContext, listItems), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {

            // on item click...

            dialog.cancel();
        }
    })
.setPositiveButton(getString(R.string.close), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {

            dialog.cancel();

        }
    });
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();

尝试像这样的BaseAdapter。

public class NotificationListAdapter extends BaseAdapter {

private Context mContext;
private List<NotificationModel> notificationModels;

public NotificationListAdapter(Context mContext, List<NotificationModel> notificationModels) {
    this.mContext = mContext;
    this.notificationModels = notificationModels;
}

@Override
public int getCount() {
    return notificationModels.size();
}

@Override
public NotificationModel getItem(int i) {
    return notificationModels.get(i);
}

@Override
public long getItemId(int i) {
    return i;
}

@Override
public View getView(int position, View view, ViewGroup viewGroup) {

    NotificationViewHolder notificationViewHolder;

    if (view == null) {

        LayoutInflater mInflater = (LayoutInflater) mContext.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        view = mInflater.inflate(R.layout.item_notification, null);

        notificationViewHolder = new NotificationViewHolder();

        notificationViewHolder.item_view = (RelativeLayout) view.findViewById(R.id.notification_item);
        notificationViewHolder.textView_notification = (TextView) view.findViewById(R.id.tv_notification);
        notificationViewHolder.textView_time = (TextView) view.findViewById(R.id.tv_notification_time);

        view.setTag(notificationViewHolder);

    } else {
        notificationViewHolder = (NotificationViewHolder) view.getTag();
    }

    NotificationModel notificationModel = getItem(position);

    // UI Update...(Data binding)

    return view;
}

private class NotificationViewHolder {
    RelativeLayout item_view;
    TextView textView_notification, textView_time;
}
}

如果您需要更多有关此信息。请在下面评论......快乐的编码...

答案 3 :(得分：0)

如果您的目的是在对话框中显示列表，请阅读警告对话框文档：Alert dialog

Alert类的Alert对话框有很多实现列表的方法：

builder.setItems for list string
builder.setMultiChoiceItems
builder.setSingleChoiceItems

答案 4 :(得分：0)

在您的主要活动中写：

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.option_menu_laout);

    Button button=(Button) findViewById(R.id.button);

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            openCompaniesActivity()
        }
    });
}

public void openCompaniesActivity()(){   
    startActivity(new Intent(this, ListViewActivity.class));
  }
}

您的ListViewActivity：

public class ListViewActivity extends Activity{

String[] company;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.list_layout);
    populateListView();

}
private void populateListView() {
    //Create list of items
    company= getResources().getStringArray(R.array.company_name);
    //Build Adapter
    ArrayAdapter<String> adapter=new ArrayAdapter<String>(
            this, //Context for the Activity
            R.layout.first_alertlist_textstyle,
            android.R.id.text1,//Layout to use
            company); //Items to be displayed

    //Configure the list view
    ListView companyList =(ListView) findViewById(R.id.list_view);
    companyList.setAdapter(adapter);
    companyList.setOnItemsClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                String selectedCompany = company[position];
                //Create you dialog, depending from selected company.
                AlertDialog.Builder builder = new AlertDialog.Builder(ListViewActivity.this);
                LayoutInflater inflater = ListViewActivity.this.getLayoutInflater();
                View dialogView = inflater.inflate(R.layout.diallog_layout, null);
                builder.setView(dialogView);
                builder.setCancelable(true);
                builder.setTitle("Contact");
                builde.show(); 
            }
        })

  }
}

不要忘记将所有需要的活动添加到清单。

相关问题
最新问题