一個Demo學會用Android兼容包新控件

    <!--
        一個顯示圓形頭像的自定義ImageView
    -->
<com.sunjiajia.androidnewwidgetsdemo.view.RoundedImageView
    android:id="@+id/id_header_face"
    android:layout_width="110dp"
    android:layout_height="110dp"
    android:scaleType="fitXY"
    android:src="@drawable/author" />

<TextView
    android:id="@+id/id_header_authorname"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/header_author_name"
    android:textColor="@android:color/black"
    android:textSize="16sp" />

<TextView
    android:id="@+id/id_header_url"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/header_author_url"
    android:textColor="@android:color/black"
    android:textSize="18sp" />

</LinearLayout></code></pre>

Java代碼

Java代碼寫法比較簡單，這里只給出RecyclerView.Adapter<ViewHolder>的寫法（包括item點擊事件）。

RecyclerView.Adapter<ViewHolder>寫法源碼

package com.sunjiajia.androidnewwidgetsdemo.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.sunjiajia.androidnewwidgetsdemo.R;
import java.util.ArrayList;
import java.util.List;
/**

Created by Monkey on 2015/6/29.
*/
public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewHolder> {
// 點擊事件接口
 public interface OnItemClickListener {

 void onItemClick(View view, int position);

 void onItemLongClick(View view, int position);

}
public OnItemClickListener mOnItemClickListener;
public void setOnItemClickListener(OnItemClickListener listener) {

 this.mOnItemClickListener = listener;

}



public Context mContext;
public List<String> mDatas;
public LayoutInflater mLayoutInflater;

public MyRecyclerViewAdapter(Context mContext) {
    this.mContext = mContext;
    mLayoutInflater = LayoutInflater.from(mContext);
    // 這里是模擬數據。
    mDatas = new ArrayList<>();
    for (int i = 'A'; i <= 'z'; i++) {
        mDatas.add((char) i + "");
    }
}

/**
 * 創建ViewHolder
 */
@Override
public MyRecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View mView = mLayoutInflater.inflate(R.layout.item_main, parent, false);
    MyRecyclerViewHolder mViewHolder = new MyRecyclerViewHolder(mView);
    return mViewHolder;
}

/**
 * 綁定ViewHoler，給item中的控件設置數據
 */
@Override
public void onBindViewHolder(final MyRecyclerViewHolder holder, final int position) {
    //點擊事件在這里實現，主要是利用RecyclerView中填充的布局控件可以被點擊這個原理
    if (mOnItemClickListener != null) {
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mOnItemClickListener.onItemClick(holder.itemView, position);
            }
        });

        // 長點擊事件
        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                mOnItemClickListener.onItemLongClick(holder.itemView, position);
                return true;
            }
        });

    }

    holder.mTextView.setText(mDatas.get(position));
}

@Override
public int getItemCount() {
    return mDatas.size();
}

}</code></pre> 
  
MyRecyclerViewHolder.java源碼
 
  
package com.sunjiajia.androidnewwidgetsdemo.adapter;

import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.TextView;
import com.sunjiajia.androidnewwidgetsdemo.R;
/**

Created by Monkey on 2015/6/29.
*/
public class MyRecyclerViewHolder extends RecyclerView.ViewHolder {
public TextView mTextView;
public MyRecyclerViewHolder(View itemView) {

 super(itemView);
 mTextView = (TextView) itemView.findViewById(R.id.id_textview);

}
}</code></pre>
 
 
 
 
 
 
 
 
 
 
來自：http://www.jianshu.com/p/533f5ecee306