这篇文章主要介绍“Android如何实现加载圈”，在日常操作中，相信很多人在Android如何实现加载圈问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”Android如何实现加载圈”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
首先，直接上菊花效果图，这是我直接从项目里面截取下来的。
核心代码
import android.app.Dialog;import android.content.Context;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.Window;import android.view.WindowManager;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.widget.ImageView;import android.widget.RelativeLayout;import android.widget.TextView; public class CircularLoading {public static Dialog showLoadDialog(Context context, String msg, boolean isCancelable) {LayoutInflater inflater = LayoutInflater.from(context);View v = inflater.inflate(R.layout.circular_loading, null);RelativeLayout layout = (RelativeLayout) v.findViewById(R.id.dialog_bg); // main.xml中的ImageViewImageView loadImage = (ImageView) v.findViewById(R.id.load_iv);TextView pointTextView = (TextView) v.findViewById(R.id.point_tv);// 加载动画Animation hyperspaceJumpAnimation = AnimationUtils.loadAnimation(context, R.anim.rotating_animation);// 使用ImageView显示动画loadImage.startAnimation(hyperspaceJumpAnimation);pointTextView.setText(msg);Dialog loadingDialog = new Dialog(context, R.style.TransDialogStyle);loadingDialog.setContentView(layout);loadingDialog.setCancelable(isCancelable);loadingDialog.setCanceledOnTouchOutside(false); Window window = loadingDialog.getWindow();WindowManager.LayoutParams lp = window.getAttributes();lp.width = WindowManager.LayoutParams.WRAP_CONTENT;lp.height = WindowManager.LayoutParams.WRAP_CONTENT;window.setGravity(Gravity.CENTER);window.setAttributes(lp);window.setWindowAnimations(R.style.PopWindowAnimStyle);loadingDialog.show();return loadingDialog;} public static void closeDialog(Dialog mCircularLoading) {if (mCircularLoading != null && mCircularLoading.isShowing()) {mCircularLoading.dismiss();}} }布局文件
circular_loading.xml
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/dialog_bg" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#000000" android:minHeight="60dp" android:minWidth="150dp" android:orientation="horizontal" > <ImageView android:id="@+id/load_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true" android:layout_marginLeft="20dp" android:layout_marginStart="20dp" android:src="@drawable/dialog_loading_img" /> <TextView android:id="@+id/point_tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:layout_marginTop="0dp" android:layout_toRightOf="@+id/load_iv" android:ellipsize="middle" android:singleLine="true" android:textSize="16sp" /></RelativeLayout>动画
rotating_animation.xml
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" android:shareInterpolator="false"> <rotate android:duration="1000" android:fromDegrees="0" android:interpolator="@android:anim/linear_interpolator" android:pivotX="50%" android:pivotY="50%" android:repeatCount="-1" android:repeatMode="restart" android:toDegrees="360" />dialog_show.xml
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha android:fromAlpha="0" android:toAlpha="1.0"/> </set>dialog_hide.xml
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><alpha android:fromAlpha="1.0" android:toAlpha="0"/></set>Style
</style> <style name="TransDialogStyle" parent="@android:style/Theme.Dialog"> <item name="android:windowFrame">@null</item> <item name="android:windowIsFloating">true</item> <item name="android:windowIsTranslucent">true</item> <item name="android:windowNoTitle">true</item> <item name="android:background">@android:color/transparent</item> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:backgroundDimEnabled">true</item> <item name="android:backgroundDimAmount">0.5</item> <item name="android:windowFullscreen">true</item> </style> </style> <style name="PopWindowAnimStyle"> <item name="android:windowShowAnimation">@anim/dialog_show</item> <item name="android:windowHideAnimation">@anim/dialog_hide</item></style>使用方法
//显示mCircularLoading = CircularLoading.showLoadDialog(Dvr_Activity_Main.this, "加载中...", true); //关闭CircularLoading.closeDialog(mCircularLoading);到此，关于“Android如何实现加载圈”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注编程网网站，小编会继续努力为大家带来更多实用的文章！
