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LikeAnimDemo

点赞飘心 ❤️ 效果,多用于直播场景,使用三阶贝塞尔曲线控制运动轨迹

效果预览

使用方式

1.在布局文件中添加View

<?xml version="1.0" encoding="utf-8"?>
<layout 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">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

        <androidx.appcompat.widget.AppCompatImageButton
            android:id="@+id/btnLike"
            android:layout_width="36dp"
            android:layout_height="36dp"
            android:layout_marginBottom="44dp"
            android:background="@drawable/heart"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent" />

        <com.hqb.demo.likeanim.LikeAnimView
            android:id="@+id/vLikeAnim"
            android:layout_width="100dp"
            android:layout_height="350dp"
            app:layout_constraintBottom_toTopOf="@id/btnLike"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>

布局预览

2.点击展示❤️

class MainActivity : AppCompatActivity() {

    private lateinit var binding: ActivityMainBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
        binding.lifecycleOwner = this
        initEvents()
    }

    private fun initEvents() {
        binding.btnLike.setOnClickListener {
            binding.vLikeAnim.addLike() // <-- 这里
        }
    }
}

自定义

所有代码均在一个类里 com.hqb.demo.likeanim.LikeAnimView

如需调整 ❤️ 飘出轨迹,直接修改 generateCurveAnim 方法中两个控制点的坐标即可。