Android引导界面

简单引导界面

这个实现起来其实很简单，分为几步：

1. 创建Activity以及它的Layout.xml文件
2. 在你的Activity中使用Handler机制:

3. Handler handler = new Handler();
   //延时自动跳转
   handler.postDelayed((new Runnable() {
       @Override
       public void run() {
           Intent intent=new Intent (你的引导Activity.this, 你要跳转的Activity.class);
           startActivity(intent);
           GuideActivity.this.finish();
       }
   }),3000);//延时的时间

这样一个简单引导界面就成功了

更加好看的引导界面

这里需要使用一个第三方库

AVLoadingIndicatorView

首先导入依赖：

implementation 'com.wang.avi:library:2.1.3'

然后加入到xml文件中：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.investmate.GuideActivity">

        <com.wang.avi.AVLoadingIndicatorView
        android:id="@+id/avi"
        style="@style/AVLoadingIndicatorView"
        android:layout_width="300dp"
        android:layout_height="300dp"
        android:layout_gravity="center"
        android:visibility="visible"
        app:indicatorColor="#0000CD"
        app:indicatorName="PacmanIndicator"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.496"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.249" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:gravity="center"
        android:text="Welcome!"
        android:textSize="50dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.7"></TextView>

    <com.wang.avi.AVLoadingIndicatorView
        android:id="@+id/avi1"
        style="@style/AVLoadingIndicatorView"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_gravity="center"
        android:visibility="visible"
        app:indicatorColor="#000000"
        app:indicatorName="LineSpinFadeLoaderIndicator"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.867" />


</androidx.constraintlayout.widget.ConstraintLayout>

你的Activity文件不需要很大的变化，和简单的引导界面是一样的

package com.investmate;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;


public class GuideActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_guide);
        Handler handler = new Handler();
        //延时自动跳转
        handler.postDelayed((new Runnable() {
            @Override
            public void run() {
                Intent intent=new Intent (GuideActivity.this, MainActivity.class);
                startActivity(intent);
                GuideActivity.this.finish();
            }
        }),3000);//延时的时间

    }
}

这个时候的运行效果是这样的

还有很多种样式，如下：

 自己选择：

Row 1

BallPulseIndicator

BallGridPulseIndicator

BallClipRotateIndicator

BallClipRotatePulseIndicator

Row 2

SquareSpinIndicator

BallClipRotateMultipleIndicator

BallPulseRiseIndicator

BallRotateIndicator

Row 3

CubeTransitionIndicator

BallZigZagIndicator

BallZigZagDeflectIndicator

BallTrianglePathIndicator

Row 4

BallScaleIndicator

LineScaleIndicator

LineScalePartyIndicator

BallScaleMultipleIndicator

Row 5

BallPulseSyncIndicator

BallBeatIndicator

LineScalePulseOutIndicator

LineScalePulseOutRapidIndicator

Row 6

BallScaleRippleIndicator

BallScaleRippleMultipleIndicator

BallSpinFadeLoaderIndicator

LineSpinFadeLoaderIndicator

Row 7

TriangleSkewSpinIndicator

PacmanIndicator

BallGridBeatIndicator

SemiCircleSpinIndicator