在Android原生弹窗中引用Flutter页面_flulter 弹窗

如果没有引入FlutterBoost，可以使用FlutterView

// 通过FlutterView引入Flutter编写的页面
FlutterView flutterView = new FlutterView(this);
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
        ViewGroup.LayoutParams.MATCH_PARENT,
        ViewGroup.LayoutParams.MATCH_PARENT);
FrameLayout flContainer = findViewById(R.id.fl_container);
flContainer.addView(flutterView, lp);

FlutterEngine flutterEngine = new FlutterEngine(this);
flutterEngine.getDartExecutor().executeDartEntrypoint(
        DartExecutor.DartEntrypoint.createDefault()
);
// 关键代码，将Flutter页面显示到FlutterView中
flutterView.attachToFlutterEngine(flutterEngine);
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详情见https://blog.csdn.net/ruiruiddd/article/details/115318612

如果引入了FlutterBoost，由于FlutterBoost暂不支持FlutterView这种级别
Issue: [Android] Boost新增FlutterView级别支持

所以，就需要使用Fragment了。
我们需要新建一个DialogFragment，代码如下所示

class MyTestFragmentDialog : DialogFragment() {
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        val root = inflater.inflate(R.layout.layout_fragment_container,container,false)
        return root
    }

    override fun onStart() {
        super.onStart()

        val window = dialog!!.window
        if (window != null) {
            val params = window.attributes
            params.gravity = Gravity.BOTTOM
            params.width = ScreenUtils.getAppScreenWidth()
            window.attributes = params
        }

        val fragment =
            FlutterBoostFragment.CachedEngineFragmentBuilder(FlutterBoostFragment::class.java)
                .url("testPage") //TODO ---> 这里需要修改为你自己项目中的URL
                .build<FlutterBoostFragment>()

        val transaction = childFragmentManager.beginTransaction()
        transaction.replace(R.id.layout_container, fragment)
        transaction.commit()
    }
}
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进行调用

MyTestFragmentDialog().show(supportFragmentManager,"tag")
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效果如下所示