3

我对 android 开发相当陌生，我正在为自己创建一些简单的应用程序。我遇到了与动画有关的问题，特别是当单击该单元格时，gridview 的每个单独单元格上的翻转动画。

到目前为止，我的应用程序所做的是从手机中检索联系人，并使用数组适配器在网格视图中显示联系人照片和姓名。

我想要发生的是当用户单击联系人的网格单元格时，它将执行翻转动画并在背面显示联系人电话号码。当用户再次单击该单元格时，它将翻转回之前的名称和照片视图。

我已经在互联网上搜索并尝试了一些教程，但没有一个对我有任何帮助，其中一定会让我感到困惑，所以如果有人可以提供帮助，那就太好了。

我将在下面发布我当前的代码！

提前致谢。

此代码用于检索联系人的信息！

package content;

import android.provider.MediaStore.Images;

public class ContactBean {
private String name;
private String phoneNo;
private String proPic;

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getPhoneNo() {
    return phoneNo;
}
public void setPhoneNo(String phoneNo) {
    this.phoneNo = phoneNo;
}

public String getProPic() {
    return proPic;
}

public void setProPic(String proPic) {
    this.proPic = proPic;
}

}

查看联系人活动

package viewContacts;

import com.example.contactflipper.R;

import content.ContactBean;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.os.Bundle;

import android.provider.ContactsContract;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;


public class ViewContactsActivity extends Activity implements
OnItemClickListener {

private GridView listView;
private List<ContactBean> list = new ArrayList<ContactBean>();

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

    listView = (GridView) findViewById(R.id.gridview);
    listView.setOnItemClickListener(this);
    String image_uri = ""; 
    Bitmap bitmap = null;

    Cursor phones = getContentResolver().query(
            ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,   null,
            null, null);
    while (phones.moveToNext()) {

        String name = phones
                .getString(phones
                        .getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));

        String phoneNumber = phones
                .getString(phones
                        .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

        image_uri = phones
                  .getString(phones
                        .getColumnIndex(ContactsContract.CommonDataKinds.Phone.PHOTO_URI));

        ContactBean objContact = new ContactBean();
        objContact.setName(name);

        objContact.setPhoneNo(phoneNumber);
        list.add(objContact);



    }
    phones.close();

    GridAdapter objAdapter = new GridAdapter(
            ViewContactsActivity.this, R.layout.card_front, list);
    listView.setAdapter(objAdapter);

    if (null != list && list.size() != 0) {
        Collections.sort(list, new Comparator<ContactBean>() {

            @Override
            public int compare(ContactBean lhs, ContactBean rhs) {
                return lhs.getName().compareTo(rhs.getName());
            }
        });
        AlertDialog alert = new AlertDialog.Builder(
                ViewContactsActivity.this).create();
        alert.setTitle("");

        alert.setMessage(list.size() + " Contact Found!!!");

        alert.setButton("OK", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        alert.show();

    } else {
        showToast("No Contact Found!!!");
    }
}

private void showToast(String msg) {
    Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}

@Override
public void onItemClick(AdapterView<?> listview, View v, int position,
        long id) {
    ContactBean bean = (ContactBean) listview.getItemAtPosition(position);
    //implement something on the click of each listed item - bean
}

}

网格适配器

package viewContacts;

import java.util.List;

import com.example.contactflipper.R;
import com.example.contactflipper.R.id;

import content.ContactBean;


import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class GridAdapter extends ArrayAdapter<ContactBean> {

    private Activity activity;
    private List<ContactBean> items;
    private int row;
    private ContactBean objBean;


    public GridAdapter(Activity act, int row, List<ContactBean> items) {
        super(act, row, items);

        this.activity = act;
        this.row = row;
        this.items = items;


    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        View view = convertView;
        ViewHolder holder;
        if (view == null) {
            LayoutInflater inflater = (LayoutInflater) activity
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = inflater.inflate(row, null);

            holder = new ViewHolder();
            view.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }

        if ((items == null) || ((position + 1) > items.size()))
            return view;

        objBean = items.get(position);

        holder.tvname = (TextView) view.findViewById(R.id.profileName);
        //holder.tvPhoneNo = (TextView) view.findViewById(R.id.tvphone);

        if (holder.tvname != null && null != objBean.getName()
                && objBean.getName().trim().length() > 0) {
            holder.tvname.setText(Html.fromHtml(objBean.getName()));
        }
        if (holder.tvPhoneNo != null && null != objBean.getPhoneNo()
                && objBean.getPhoneNo().trim().length() > 0) {
            holder.tvPhoneNo.setText(Html.fromHtml(objBean.getPhoneNo()));
        }
        if (holder.ivPic != null && null != objBean.getProPic()
                && objBean.getProPic().trim().length() > 0) {
            holder.ivPic.setBackground((Drawable) Html.fromHtml(objBean.getProPic()));
        }
        return view;
    }

    public class ViewHolder {
        public TextView tvname, tvPhoneNo;
        public ImageView ivPic;
    }

}

查看联系人片段

package viewContacts;

import com.example.contactflipper.R;
import com.example.contactflipper.R.id;
import com.example.contactflipper.R.layout;

import content.AppDetails;
import android.app.Activity;
import android.app.Fragment;
import android.content.res.Configuration;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;

public class VCGridFragment extends Fragment {


    public static GridView mGridview;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){

            View view = inflater.inflate(R.layout.menu_viewcon_grid, container, false);
            Log.d("Called", "on Create View");
            return view;
        }

    //super.onCreateView(inflater, container, savedInstanceState);
    @Override
    public void onViewCreated(View view, Bundle savedInstanceState){
        super.onViewCreated(view, savedInstanceState);
        Log.d("Called", "created Grid");
        mGridview = (GridView) view.findViewById(R.id.gridview);


        Configuration config = getResources().getConfiguration();

        if(AppDetails.isTablet){

            if(config.orientation == Configuration.ORIENTATION_LANDSCAPE){
                mGridview.setNumColumns(4);
            }else{
                mGridview.setNumColumns(3);
            }

        }else{
            if(config.orientation == Configuration.ORIENTATION_LANDSCAPE){
                mGridview.setNumColumns(3);
            }else{
                mGridview.setNumColumns(2);
            }
        }

        /*
        mGridview.setOnItemClickListener(new onItemClickLitener(){

            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id){
                onGridItemClick((GridView) parent, view, position, id);
            }

        });
    }

    public void onGridItemClick(GridView g, View v, int position, long id){
        Activity activity = getActivity();
    }
    */
 }
}

网格视图 xml -

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/contact_grid"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:background="#ffffff"
    android:scrollbars="none"
    tools:context=".MainActivity" >

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:background="@drawable/gradient"
        android:padding="10dp" >

        <GridView
            android:id="@+id/gridview"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="50dp"
            android:numColumns="2"
            android:horizontalSpacing="8dp"
            android:scrollbars="none"
            android:verticalSpacing="8dp" >

        </GridView>

        <Button
            android:id="@+id/backButton"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:layout_gravity="top|right"
            android:background="#8043BFC7"
            android:text="@string/edit_contacts"
            android:textColor="#ffffff"
            android:textStyle="bold" />

    </FrameLayout>

</RelativeLayout>

卡片正面 XML -

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

    <ImageView
        android:id="@+id/profileThumb"
        android:layout_width="match_parent"
        android:layout_height="140dp"
        ></ImageView>

    <TextView
        android:id="@+id/profileName"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:layout_gravity="bottom"
        android:background="#40000000"
        android:textColor="#ffffff"
        android:textSize="22sp">
        </TextView> 


</LinearLayout>

卡片背面 XML -

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="180dp"
    android:layout_height="180dp"
    android:orientation="vertical"
    android:background="#a6c"
    android:padding="10dp"
    android:gravity="bottom"
    >
    <TextView
        android:id="@+id/infoName"
        style="?android:textAppearanceLarge"
        android:textStyle="bold"
        android:textColor="#fff"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="HCKDAHOIW" 
        ></TextView>   

    <TextView
        android:id="@+id/infoLocality"
        style="?android:textAppearanceSmall"
        android:textAllCaps="true"
        android:textStyle="bold"
        android:textColor="#80ffffff"
        android:lineSpacingMultiplier="1.2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="convoy" 
        ></TextView>

    <TextView
        android:id="@+id/infoEmail"
        style="?android:textAppearanceSmall"
        android:textColor="#80ffffff"
        android:lineSpacingMultiplier="1.2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="fowfow@email.com" 
        ></TextView>

    <TextView
        android:id="@+id/infoNumber"
        style="?android:textAppearanceSmall"
        android:textColor="#80ffffff"
        android:lineSpacingMultiplier="1.2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="(086) 123 4567" 
        ></TextView>

</LinearLayout>
4

1 回答 1

2

我会去做这样的事情。

假设这是您要在 gridview 中膨胀的布局，它被命名为view_flipper_layout。当然，您必须将所有 textview 组件等添加到前面或后面的线性布局中。

<?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" >

    <ViewFlipper
        android:id="@+id/my_view_flipper"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <LinearLayout
            android:id="@+id/front"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Large Text"
                android:textAppearance="?android:attr/textAppearanceLarge" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/back"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <ImageView
                android:id="@+id/picture"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

        </LinearLayout>

    </ViewFlipper>

</LinearLayout>

现在假设这是适配器

 public GridAdapter(Activity act, int row, List<ContactBean> items) {
    super(act, row, items);

    this.activity = act;
    this.row = row;
    this.items = items;


}


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

    View view = convertView;
    ViewHolder holder;
    if (view == null) {
        LayoutInflater inflater = (LayoutInflater) activity
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        //here is where you inflate your layout containing your viewflipper
        view = inflater.inflate(R.layout.view_flipper_layout, null);

    } else {
        holder = (ViewHolder) view.getTag();
    }

    //reference the viewFlipper
    ViewFlipper flipper = (viewFlipper) holder.findViewById(R.id.my_view_flipper);
    //your front layout should be set to displayed be default 


    //now you can get get references to your textview or ImageViews contained within the layout
    TextView name = (TextView) holder.findViewById(R.id.name);
    name.setText("your text");

    ImageView picture = (ImageView) holder.findViewById(R.id.picture);

    //now you set your onclick and pass it the current viewflipper to control the displayed child
    flipper.setOnClickListener(new OnClickListener(){
        @Override
        public void onClick(View click) {

            flipViewFlipper(flipper);

        }

    });


    return view;
}


private void flipViewFlipper(ViewFlipper flipper){

   if(flipper.getDisplayedChild() == 0){
      flipper.setDisplayedChild(1);
   }
   else{
     flipper.setDisplayeChild(0);
   }

}

}

我是从脑海中输入的，所以如果您尝试这样做，请将其用作指南。

于 2013-08-27T10:44:07.700 回答