Dynamically move view or widget after activity start time on button click function.
What we are doing in this project : Firstly we are creating two buttons inside activity_main.xml layout file. Now we are setting up button first alignment at the right side of second button on second button click using three major different function called as layoutparams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 0);
layoutparams.addRule(RelativeLayout.LEFT_OF, two.getId());
layoutparams.addRule(RelativeLayout.ALIGN_BASELINE, two.getId()); . So here is the complete step by step tutorial for Place a view to left side of another view in relativelayout programmatically.
How to Place a view to left side of another view in relativelayout programmatically.
Code for MainActivity.java file.
package com.view2leftsideofanotherview_android_examples.com; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.RelativeLayout; import android.widget.RelativeLayout.LayoutParams; public class MainActivity extends Activity { Button one,two; LayoutParams layoutparams; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); one = (Button)findViewById(R.id.button1); two = (Button)findViewById(R.id.button2); layoutparams = (LayoutParams)one.getLayoutParams(); two.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub layoutparams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 0); layoutparams.addRule(RelativeLayout.LEFT_OF, two.getId()); layoutparams.addRule(RelativeLayout.ALIGN_BASELINE, two.getId()); one.setLayoutParams(layoutparams); } }); } }
Code for activity_main.xml layout file.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.view2leftsideofanotherview_android_examples.com.MainActivity" > <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button-1" /> <Button android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:text="Move Button 1" /> </RelativeLayout>
Screenshot without button click :
Screenshot with button click :