Question

我看到各种应用程序都使用这个确切的界面来帮助他们的用户第一次使用它。（彩色光盘，说明性文字和脉动fab按钮）。有人知道这个图书馆的名字吗？来自Android SDK吗？

Answer 1

使用TaptTargetView库可以实现相同的波纹效果。

TapTargetView 库

它的用法非常简单

TapTargetView.showFor(this,                 // `this` is an Activity
    TapTarget.forView(findViewById(R.id.target), "This is a target", "We have the best targets, believe me")
        // All options below are optional
        .outerCircleColor(R.color.red)      // Specify a color for the outer circle
        .outerCircleAlpha(0.96f)            // Specify the alpha amount for the outer circle
        .targetCircleColor(R.color.white)   // Specify a color for the target circle
        .cancelable(false)                  // Whether tapping outside the outer circle dismisses the view
        .tintTarget(true)                   // Whether to tint the target view's color
        .transparentTarget(false)           // Specify whether the target is transparent (displays the content underneath)
        .icon(Drawable)                     // Specify a custom drawable to draw as the target
        .targetRadius(60),                  // Specify the target radius (in dp)
    new TapTargetView.Listener() {          // The listener can listen for regular clicks, long clicks or cancels
        @Override
        public void onTargetClick(TapTargetView view) {
            super.onTargetClick(view);      // This call is optional
            doSomething();
        }
    });

您还可以对元素执行一系列操作

new TapTargetSequence(this)
    .targets(
        TapTarget.forView(findViewById(R.id.never), "Gonna"),
        TapTarget.forView(findViewById(R.id.give), "You", "Up")
                .dimColor(android.R.color.never)
                .outerCircleColor(R.color.gonna)
                .targetCircleColor(R.color.let)
                .textColor(android.R.color.you),
        TapTarget.forBounds(rickTarget, "Down", ":^)")
                .cancelable(false)
                .icon(rick))
    .listener(new TapTargetSequence.Listener() {
        // This listener will tell us when interesting(tm) events happen in regards
        // to the sequence
        @Override
        public void onSequenceFinish() {
            // Yay
        }

        @Override
        public void onSequenceStep(TapTarget lastTarget) {
           // Perfom action for the current target
        }

        @Override
        public void onSequenceCanceled(TapTarget lastTarget) {
            // Boo
        }
    });

将此添加到您的build.gradle

repositories { 
        jcenter()
   }

   dependencies {
         implementation 'com.getkeepsafe.taptargetview:taptargetview:1.12.0'
   }

Android：FAB按钮的循环脉动帮助

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