Android Button Position Programmatically

Question

I have a button in my application. I want to change its position programmatically. I have created a button in XML as follows:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

<Button android:text="@+id/Button01" 
        android:id="@+id/Button01" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:layout_marginLeft="50px"
        android:layout_marginTop="10px"
        >
</Button>
</LinearLayout>

Suppose I want to set the position of the button as 100px from left (as layout_marginLeft="100px"). How can I do it programmatically? Please help me to solve the problem.

Let me come to the point... Actually My Layout contains 9 buttons...so some buttons are visible and invisible based on the condition..so i want to align(move left or right) it programmatically...pls help me — Paresh Mayani, Jul 13 '10 at 05:02
Take a look at this answer. It shows clearly how to set the margins on a button. http://stackoverflow.com/a/4594374/525541 — MindWire, Jun 27 '12 at 13:03
Padding and margin are not the same ... this is thread is what you are looking for https://stackoverflow.com/questions/2481455/set-margins-in-a-linearlayout-programmatically — Mojo Risin, Jul 12 '10 at 13:58

score 11 · Answer 1 · answered Aug 16 '12 at 18:39

Luke, use the

RelativeLayout.LayoutParams rel_btn = new RelativeLayout.LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

rel_btn.leftMargin = myXPosition;
rel_btn.topMargin = myYPosition;
rel_btn.width = buttonW;
rel_btn.height = buttonH;

myButton.setLayoutParams(rel_btn);

score 6 · Answer 2 · edited Jul 21 '17 at 12:55

6

You need to get the view and transform into a Java object, then call setPadding on it.

some thing like this would work out

Button myBtn;
myBtn = (Button) findViewById(R.id.Button01);
myBtn.setPadding(0,100,0,0);

Read more here: https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html

edited Jul 21 '17 at 12:55

Vadim Kotov

8,084
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answered Jul 12 '10 at 12:43

Pentium10

204,586
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502

its not working ..showing red line (error) under setMargins function. I am using Android 1.5 – Paresh Mayani Jul 12 '10 at 12:48
i have also tried btnTest.setPadding(100,0,0,0); but it makes button of 100 width and text will be displyed on Right-hand side.but still not working – Paresh Mayani Jul 12 '10 at 13:01
yeh...this working if i set "setPadding(100,0,0,0) to the Layout as follows: LinearLayout l1 = (LinearLayout) findViewById(R.id.LinearLayout01); l1.setPadding(120, 0, 0, 0); Thanx a lot...@Pentium – Paresh Mayani Jul 12 '10 at 13:24

score 2 · Answer 3 · edited Jan 17 '12 at 07:15

2

You can't use setMargin() with btn, use it with LayoutParams and then btn.setLayoutParams(params);

edited Jan 17 '12 at 07:15

Dyppl

12,161
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answered Jan 17 '12 at 07:06

Arun

1,407
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10

Hasan A Yousef · Answer 4 · 2018-04-02T21:45:58.610

With Kotlin you can use the below:

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val btnTag = Button(this).apply {
            text = "Done"
            setOnClickListener { finish() }
        }

        // btnTag.setOnClickListener { this.finish() }

        val lp = RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT).apply {
            addRule(RelativeLayout.ALIGN_PARENT_BOTTOM)
            addRule(RelativeLayout.ALIGN_PARENT_RIGHT)
        }

        main_layout.addView(btnTag, lp)
}

Note: The layout should be RelativeLayout

Android Button Position Programmatically

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