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(){ @Override public void onClick(View v) { // TODO Auto-generated method stub showPopupWindow(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() { @Override public void onClick(View v) { // TODO Auto-generated method stub //doSomething } }); btns[1].setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub //doSomething } }); btns[2].setOnClickListener(new OnClickListener() { @Override public 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>