沒有太多花樣,也沒有很複雜的技術,就是簡單的PopupWindow的使用,可以實現點擊彈出一個自定義的view,view裏可以隨便設計,常用的可以放一個listview。
demo中我只是一個點擊展示,簡單的使用了fade in out的動畫效果,也沒有精美的圖片資源,看着也醜,不過這麼短的時間,讓你掌握一個很好用的技術,可以自己擴展,不很好麼?
廢話不說了,直接上代碼:
MainActivity.java
- public class MainActivity extends Activity implements OnClickListener {
- private PopupWindow popupwindow;
- private Button button;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- button = (Button) findViewById(R.id.button1);
- button.setOnClickListener(this);
- }
- @Override
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.button1:
- if (popupwindow != null&&popupwindow.isShowing()) {
- popupwindow.dismiss();
- return;
- } else {
- initmPopupWindowView();
- popupwindow.showAsDropDown(v, 0, 5);
- }
- break;
- default:
- break;
- }
- }
- public void initmPopupWindowView() {
- // // 獲取自定義佈局文件pop.xml的視圖
- View customView = getLayoutInflater().inflate(R.layout.popview_item,
- null, false);
- // 創建PopupWindow實例,200,150分別是寬度和高度
- popupwindow = new PopupWindow(customView, 250, 280);
- // 設置動畫效果 [R.style.AnimationFade 是自己事先定義好的]
- popupwindow.setAnimationStyle(R.style.AnimationFade);
- // 自定義view添加觸摸事件
- customView.setOnTouchListener(new OnTouchListener() {
- @Override
- public boolean onTouch(View v, MotionEvent event) {
- if (popupwindow != null && popupwindow.isShowing()) {
- popupwindow.dismiss();
- popupwindow = null;
- }
- return false;
- }
- });
- /** 在這裏可以實現自定義視圖的功能 */
- Button btton2 = (Button) customView.findViewById(R.id.button2);
- Button btton3 = (Button) customView.findViewById(R.id.button3);
- Button btton4 = (Button) customView.findViewById(R.id.button4);
- btton2.setOnClickListener(this);
- btton3.setOnClickListener(this);
- btton4.setOnClickListener(this);
- }
- }
activity_main.xml
- <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"
- android:background="#000000"
- tools:context=".MainActivity" >
- <Button
- android:id="@+id/button1"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_alignParentLeft="true"
- android:layout_alignParentTop="true"
- android:gravity="center"
- android:background="#C0C0C0"
- android:text="點擊下拉列表" />
- </RelativeLayout>
自定義view的xml
- <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"
- android:background="#C0C0C0" >
- <Button
- android:id="@+id/button2"
- android:layout_width="200dp"
- android:layout_height="wrap_content"
- android:layout_alignParentLeft="true"
- android:layout_alignParentTop="true"
- android:paddingRight="70dp"
- android:text="viviens" />
- <Button
- android:id="@+id/button3"
- android:layout_width="200dp"
- android:layout_height="wrap_content"
- android:layout_alignParentLeft="true"
- android:layout_below="@+id/button2"
- android:paddingRight="70dp"
- android:text="mryang" />
- <Button
- android:id="@+id/button4"
- android:layout_width="200dp"
- android:layout_height="wrap_content"
- android:layout_alignParentLeft="true"
- android:layout_below="@+id/button3"
- android:paddingRight="70dp"
- android:text="張曉達" />
- </RelativeLayout>
動畫效果:
inputodown.xml 進入屏幕
- <?xml version="1.0" encoding="UTF-8"?>
- <set xmlns:android="http://schemas.android.com/apk/res/android" >
- <translate
- android:duration="500"
- android:fromYDelta="-100%"
- android:toYDelta="0" />
- </set>
outdowntoup.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <set xmlns:android="http://schemas.android.com/apk/res/android" >
- <translate
- android:duration="500"
- android:fromYDelta="0"
- android:toYDelta="-100%" />
- </set>
styles.xml
- <style name="AnimationFade">
- <!-- PopupWindow左右彈出的效果 -->
- <item name="android:windowEnterAnimation">@anim/inuptodown</item>
- <item name="android:windowExitAnimation">@anim/outdowntoup</item>
- </style>
實現效果:
demo地址:
http://download.csdn.net/detail/mad1989/5518035