新浪微博第三方登录界面上下拉伸图片之第三方开源PullToZoomListViewEx（一）

<RelativeLayout 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"
tools:context="com.zzw.testpullzoomview.MainActivity" >
<com.ecloud.pulltozoomview.PullToZoomListViewEx
xmlns:custom="http://schemas.android.com/apk/res-auto"
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
custom:headerView="@layout/head_view"
custom:zoomView="@layout/head_zoom_view" />
</RelativeLayout>

custom:headerView="@layout/head_view"
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="bottom"
android:gravity="bottom">
<ImageView
android:id="@+id/iv_user_head"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="@android:color/holo_red_light"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/tv_user_name"
android:textSize="sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/iv_user_head"
android:layout_centerHorizontal="true"
android:text="新浪微博"
android:textColor="#ffffff" />
<LinearLayout
android:id="@+id/ll_action_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#"
android:layout_alignParentBottom="true"
android:padding="dip">
<TextView
android:id="@+id/tv_register"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="注册"
android:layout_weight=""
android:textSize="sp"
android:gravity="center"
android:layout_gravity="center"
android:textColor="#ffffff" />
<TextView
android:id="@+id/tv_login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="登录"
android:layout_weight=""
android:textSize="sp"
android:gravity="center"
android:layout_gravity="center"
android:textColor="#ffffff" />
</LinearLayout>
</RelativeLayout> 

custom:zoomView="@layout/head_zoom_view"
<?xml version="." encoding="utf-"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:scaleType="centerCrop"
android:src="@drawable/a" /> 

package com.zzw.testpullzoomview;
import com.ecloud.pulltozoomview.PullToZoomListViewEx;
import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
PullToZoomListViewEx listView = (PullToZoomListViewEx) findViewById(R.id.listView);
String data[] = new String[];
for (int i = ; i < data.length; i++) {
data[i] = "测试数据" + i;
}
listView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_, data));
listView.getPullRootView().setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.d("position", "getPullRootView--->position = " + position);
}
});
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.d("position", "position = " + position);
}
});
setPullToZoomListViewExHeaderLayoutParams(listView);
}
// 设置头部的View的宽高。
private void setPullToZoomListViewExHeaderLayoutParams(PullToZoomListViewEx listView) {
DisplayMetrics localDisplayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(localDisplayMetrics);
int mScreenHeight = localDisplayMetrics.heightPixels;
int mScreenWidth = localDisplayMetrics.widthPixels;
AbsListView.LayoutParams localObject = new AbsListView.LayoutParams(mScreenWidth,
(int) (.f * (mScreenWidth / .F)));
listView.setHeaderLayoutParams(localObject);
}
}