CODEWITHSUNDEEP
android-constraintlayoutbarrier
pan he
pan he

Reputation: 64

Constraintlayout Barrier setType not work

i have a Barrier in activity_constraint_layout, and want change it's type based some data from network, but setType(int type) is not work.

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_constraint_layout)
    clContainer =  findViewById(R.id.clContainer)
    
    // worked here 
    val barrier = findViewById<Barrier>(R.id.barrier)
    barrier.type = Barrier.START
    
    clContainer.setOnClickListener {
        // do not work here
        barrier.type = Barrier.END
    }
}

Upvotes: 0

Views: 31

Answers (1)

Cheticamp
Cheticamp

Reputation: 62831

The statement barrier.type = Barrier.END executes the following withing the Barrier class:

public void setType(int type) {
    mIndicatedType = type;
}

As you can see, it only sets the value of a variable. You also need to request a layout as follows:

clContainer.setOnClickListener {
    // do not work here
    barrier.type = Barrier.END
    barrier.requestLayout()
}

Once you do this, you should see the effect you want.

Upvotes: 1

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