Android(安卓)自定义PopupWindow动画效果

public class RollActivity extends Activity {private View view;private Button btn;private PopupWindow mPopupWindow;private View[] btns;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);//LinearLayout layout=(LinearLayout) view.findViewById(R.id.layout_main);////设置背景图片旋转180//Bitmap mBitmap=setRotate(R.drawable.bg_kuang);//BitmapDrawable drawable=new BitmapDrawable(mBitmap);//layout.setBackgroundDrawable(drawable);                btn=(Button) this.findViewById(R.id.btn);        btn.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {// TODO Auto-generated method stubshowPopupWindow(btn);}                });                initPopupWindow(R.layout.popwindow);    }    private void initPopupWindow(int resId){LayoutInflater mLayoutInflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);    view = mLayoutInflater.inflate(resId, null);        mPopupWindow = new PopupWindow(view, 400,LayoutParams.WRAP_CONTENT);//mPopupWindow.setBackgroundDrawable(new BitmapDrawable());//必须设置background才能消失mPopupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.bg_frame));mPopupWindow.setOutsideTouchable(true);//自定义动画//mPopupWindow.setAnimationStyle(R.style.PopupAnimation);//使用系统动画mPopupWindow.setAnimationStyle(android.R.style.Animation_Dialog);mPopupWindow.update();mPopupWindow.setTouchable(true);mPopupWindow.setFocusable(true);btns=new View[3];btns[0]=view.findViewById(R.id.btn_0);btns[1]=view.findViewById(R.id.btn_1);btns[2]=view.findViewById(R.id.btn_2);btns[0].setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//doSomething}});btns[1].setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//doSomething}});btns[2].setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//doSomething}});}private void showPopupWindow(View view) {if(!mPopupWindow.isShowing()){//mPopupWindow.showAsDropDown(view,0,0);mPopupWindow.showAtLocation(view, Gravity.CENTER, 0, 0);}}public Bitmap setRotate(int resId) {Matrix mFgMatrix = new Matrix();Bitmap mFgBitmap = BitmapFactory.decodeResource(getResources(), resId);mFgMatrix.setRotate(180f);return mFgBitmap=Bitmap.createBitmap(mFgBitmap, 0, 0, mFgBitmap.getWidth(), mFgBitmap.getHeight(), mFgMatrix, true);}}

PopupWindow的布局popwindow.xml
注意3个LinearLayout里必须设置clickable和background，这样当点击上去的时候才会有点击效果。
android:clickable="true"
android:background="@drawable/state_btn_pressed"

<?xml version="1.0" encoding="utf-8"?> <LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent"android:layout_height="wrap_content" android:orientation="horizontal"android:id="@+id/layout_main"><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"android:orientation="vertical"android:gravity="center_horizontal"android:clickable="true"android:background="@drawable/state_btn_pressed"android:layout_weight="1"android:id="@+id/btn_0"><ImageView android:layout_width="wrap_content"android:layout_height="wrap_content" android:scaleType="fitCenter"android:src="@drawable/ic_call"></ImageView><TextView android:layout_width="wrap_content"android:layout_height="wrap_content" android:textColor="#000000"android:textSize="18px"android:text="电话"></TextView></LinearLayout><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"android:orientation="vertical"android:gravity="center_horizontal"android:clickable="true"android:background="@drawable/state_btn_pressed"android:layout_weight="1"android:id="@+id/btn_1"><ImageView android:layout_width="wrap_content"android:layout_height="wrap_content" android:scaleType="fitCenter"android:src="@drawable/ic_home"></ImageView><TextView android:layout_width="wrap_content"android:layout_height="wrap_content" android:textColor="#000"android:textSize="18px"android:text="空间"></TextView></LinearLayout><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"android:orientation="vertical"android:gravity="center_horizontal"android:clickable="true"android:background="@drawable/state_btn_pressed"android:layout_weight="1"android:id="@+id/btn_2"><ImageView android:layout_width="wrap_content"android:layout_height="wrap_content" android:scaleType="fitCenter"android:src="@drawable/ic_sms"></ImageView><TextView android:layout_width="wrap_content"android:layout_height="wrap_content" android:textColor="#000"android:textSize="18px"android:text="短信"></TextView></LinearLayout></LinearLayout>

state_btn_pressed.xml，点击的效果：

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:state_pressed="true"        android:drawable="@drawable/bg_btn_pressed"        android:padding="0dp"/></selector>

Android 模仿迅雷的 PopupWindow 出现/消失动画
出现：

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><scale android:fromXScale="0.6" android:toXScale="1.1"android:fromYScale="0.6" android:toYScale="1.1" android:pivotX="50%"android:pivotY="50%" android:duration="200" /><scale android:fromXScale="1.0" android:toXScale="0.91"android:fromYScale="1.0" android:toYScale="0.91" android:pivotX="50%"android:pivotY="50%" android:duration="400" android:delay="200" /><alpha android:interpolator="@android:anim/linear_interpolator"android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="400" /></set>

消失：

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><scale android:fromXScale="1.0" android:toXScale="1.25"android:fromYScale="1.0" android:toYScale="1.25" android:pivotX="50%"android:pivotY="50%" android:duration="200" /><scale android:fromXScale="1.0" android:toXScale="0.48"android:fromYScale="1.0" android:toYScale="0.48" android:pivotX="50%"android:pivotY="50%" android:duration="400" android:delay="200" /><alpha android:interpolator="@android:anim/linear_interpolator"android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="400" /></set>

最后用下面的 XML 封装：

<?xml version="1.0" encoding="utf-8"?><resources><style name="PopupAnimation" parent="android:Animation"mce_bogus="1"><item name="android:windowEnterAnimation">@anim/anim_dialog_show</item><item name="android:windowExitAnimation">@anim/anim_dialog_hide</item></style></resources>

DraweRoll.rar (111 KB)

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