通过添加不同帧数的图片，来实现自己想要的动画效果正在加载。。。
第一步： Resources/drawable 目录下添加每一帧的图片，我设定了18帧
第二步：实现动画效果,drawable下新建页面 loading_anim.xml
<?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="false" > <item android:drawable="@drawable/load_img1" android:duration="150"/> <item android:drawable="@drawable/load_img2" android:duration="150"/> <item android:drawable="@drawable/load_img3" android:duration="150"/> <item android:drawable="@drawable/load_img4" android:duration="150"/> <item android:drawable="@drawable/load_img5" android:duration="150"/> <item android:drawable="@drawable/load_img6" android:duration="150"/> <item android:drawable="@drawable/load_img7" android:duration="150"/> <item android:drawable="@drawable/load_img8" android:duration="150"/> <item android:drawable="@drawable/load_img9" android:duration="150"/> <item android:drawable="@drawable/load_img10" android:duration="150"/> <item android:drawable="@drawable/load_img11" android:duration="150"/> <item android:drawable="@drawable/load_img12" android:duration="150"/> <item android:drawable="@drawable/load_img13" android:duration="150"/> <item android:drawable="@drawable/load_img14" android:duration="150"/> <item android:drawable="@drawable/load_img15" android:duration="150"/> <item android:drawable="@drawable/load_img16" android:duration="150"/> <item android:drawable="@drawable/load_img17" android:duration="150"/> <item android:drawable="@drawable/load_img18" android:duration="150"/> </animation-list>第三步：实现加载页半透明样式 values下新建界面style.xml <?xml version="1.0" encoding="utf-8" ?> <resources> <style name="MyDialogStyle"> <item name="android:windowBackground">@drawable/filled_box</item> <item name="android:backgroundDimEnabled">false</item> <item name="android:windowNoTitle">true</item> <item name="android:windowIsTranslucent">false</item> <item name="android:windowContentOverlay">@null</item> <!--<item name="android:windowAnimationStyle">@style/dialog_animation</item>--> <item name="android:colorBackgroundCacheHint">@null</item> <item name="android:backgroundDimAmount">0.6</item> <!--灰度--> </style> </resources> 第四步：layout下新建加载界面loading.axml <?xml version="1.0" encoding="utf-8"?> <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:gravity="center"> <RelativeLayout android:layout_width="600dp" android:layout_height="500dp"> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center" android:orientation="horizontal"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/imageView1" android:background="@drawable/loading_anim" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="正在加载..." android:textColor="#fff" android:textSize="28sp" android:layout_marginLeft="10dp" android:id="@+id/txt_loading" /> </LinearLayout> </RelativeLayout> </RelativeLayout> 第五步：点击事件下，弹出加载界面，完成 public void OnClick(View v) { int id = v.Id; if (id == Resource.Id.btn_buy) { Dialog dialog = new Dialog(this, Resource.Style.MyDialogStyle); dialog.SetContentView(Resource.Layout.loading); dialog.Show(); mImageView = dialog.FindViewById<ImageView>(Resource.Id.imageView1); TextView tv=dialog.FindViewById<TextView>(Resource.Id.txt_loading); tv.Text = "正在加载，请稍后..."; mAnimation = (AnimationDrawable)mImageView.Background; mImageView.Post(new Runnable(() => { mAnimation.Start(); })); new Handler().PostDelayed(new Runnable(() => { //等待10000毫秒后销毁此页面，并提示登陆成功 dialog.Dismiss();//取消加载 Toast.MakeText(this, "加载完成", ToastLength.Short).Show(); }), 10000); } }
