Flutter开发之——Android-Flutter添加到Fragment

android:layout_width=“wrap_content”

android:layout_height=“wrap_content”

android:text=“Activity原生页面”

android:textSize=“20dp”

app:layout_constraintLeft_toLeftOf=“parent”

app:layout_constraintRight_toRightOf=“parent”

app:layout_constraintTop_toTopOf=“parent” />

<RelativeLayout

android:id=“@+id/fragment_container”

android:layout_width=“wrap_content”

android:layout_height=“wrap_content”

app:layout_constraintTop_toBottomOf=“@+id/textView”

app:layout_constraintLeft_toLeftOf=“parent”

app:layout_constraintRight_toRightOf=“parent” />

</androidx.constraintlayout.widget.ConstraintLayout>

3.2 将activity中的一部分替换为Fragment

fragmentManager

.beginTransaction()

.add(

R.id.fragment_container,

flutterFragment,

TAG_FLUTTER_FRAGMENT

)

.commit();

说明：将相对布局替换为Fragment显示

四 不使用带缓存的FlutterEngine和路由

---

4.1 代码

class MainActivity : AppCompatActivity() {

private val TAG_FLUTTER_FRAGMENT = “flutter_fragment”

private var flutterFragment: FlutterFragment?