本文实例为大家分享了android实现加载等待展示的具体代码,供大家参考,具体内容如下
package com.zhcs.gis.app.modulecore.core.component.tool;
import android.app.activity;
import android.view.layoutinflater;
import android.view.view;
import com.zhcs.gis.app.modulecore.r;
import java.lang.ref.weakreference;
import androidx.appcompat.app.alertdialog;
public class loadingdialogutils_m {
private static alertdialog loadingdialog;
private static weakreference<activity> reference;
private static void init(activity act) {
init(act, -1);
}
private static void init(activity activity, int res) {
if (loadingdialog == null || reference == null || reference.get() == null || reference.get().isfinishing()) {
reference = new weakreference<>(activity);
loadingdialog = new alertdialog.builder(reference.get()).create();
if (res > 0) {
view view = layoutinflater.from(activity).inflate(res, null);
loadingdialog.setview(view);
loadingdialog.getwindow().setbackgrounddrawableresource(android.r.color.transparent);
// loadingdialog.setcontentview(res);
} else {
loadingdialog.setmessage("加载中...");
}
loadingdialog.setcancelable(false);
}
}
public static void setcancelable(boolean b) {
if (loadingdialog == null) return;
loadingdialog.setcancelable(b);
}
/**
* 显示等待框
*/
public static void show(activity act) {
show(act, false);
}
public static void show(activity act, boolean iscancelable) {
show(act, r.layout.dialog_loading, iscancelable);
}
public static void show(activity activity, int res, boolean iscancelable) {
init(activity, res);
loadingdialog.show();
setcancelable(iscancelable);
}
/**
* 隐藏等待框
*/
public static void dismiss() {
if (loadingdialog != null && loadingdialog.isshowing()) {
loadingdialog.dismiss();
loadingdialog = null;
reference = null;
}
}
}
在使用的时候,在baseactivity里面这样设置:
public void showloading(boolean show) {
if (show) {
loadingdialogutils_m.show(context, true);
} else {
loadingdialogutils_m.dismiss();
}
}
附件:
这是dialog_loading布局文件:
<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<progressbar
android:id="@+id/progress"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_centerinparent="true"
android:indeterminatedrawable="@drawable/bg_progressbar" />
</relativelayout>
这是bg_progressbar配置:
<?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:drawable="@mipmap/img_loading" android:fromdegrees="0" android:pivotx="50%" android:pivoty="50%" android:todegrees="1080" />
最后就是加载的图片img_loading的样式,可以自定义,随便上网找一个就可以,看着好看就行。

最后就可以使用了,挺有用的一个小技巧,加载用的,也可以用其他的方式实现,只要效果一样就行。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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