android-custom-view – Page 2

Add multiple custom views to layout programmatically

August 13, 2023 by Tarik

You can inflate the layout2.xml file, edit the texts, and add it to the first layout: public class MyActivity extends Activity { private ViewGroup mLinearLayout; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.layout1); mLinearLayout = (ViewGroup) findViewById(R.id.linear_layout); addLayout(“This is text 1”, “This is first button”, “This is second Button”); } private void addLayout(String textViewText, String … Read more

Android: Jetpack Compose and XML in Activity

August 4, 2023 by Tarik

If you want to use a Compose in your XML file, you can add this to your layout file: <androidx.compose.ui.platform.ComposeView android:id=”@+id/my_composable” android:layout_width=”wrap_content” android:layout_height=”wrap_content” /> and then, set the content: findViewById<ComposeView>(R.id.my_composable).setContent { MaterialTheme { Surface { Text(text = “Hello!”) } } } If you want the opposite, i.e. to use an XML file in your compose, … Read more

Cannot remove Padding from Tabs when using Custom views with Tab Layout

August 3, 2023 by Tarik

<android.support.design.widget.TabLayout android:id=”@+id/tab_layout” android:layout_width=”210dp” android:layout_height=”28dp” android:layout_centerInParent=”true” android:background=”@drawable/bg_forum_tab” app:tabIndicatorColor=”@color/colorBtnBg” app:tabIndicatorHeight=”0dp” app:tabPaddingBottom=”-1dp” app:tabPaddingEnd=”-1dp” app:tabPaddingStart=”-1dp” app:tabPaddingTop=”-1dp” app:tabSelectedTextColor=”@color/colorBtnBg” app:tabTextColor=”@color/colorWhite” /> Set tabPaddingStart/tabPaddingEnd/tabPaddingTop/tabPaddingBottom like this.

Android: Multiple view children for custom view with existing layout

July 31, 2023 by Tarik

It’s absolutely possible, and encouraged, to create custom container views. This is what Android would call a compound control. So: public class MyCustomView extends RelativeLayout { private LinearLayout mContentView; public MyCustomView(Context context) { this(context, null); } public MyCustomView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public MyCustomView(Context context, AttributeSet attrs, int defStyle) { super(context, … Read more

How to get an enum which is created in attrs.xml in code

June 25, 2023 by Tarik

There does not seem to be an automated way to get a Java enum from an attribute enum – in Java you can get the numeric value you specified – the string is for use in XML files (as you show). You could do this in your view constructor: TypedArray a = context.getTheme().obtainStyledAttributes( attrs, R.styleable.IconView, … Read more

How is StaticLayout used in Android?

June 10, 2023 by Tarik

StaticLayout (similar to DynamicLayout and BoringLayout) is used to layout and draw text on a canvas. It is commonly used for the following tasks: Measuring how big multiline text would be after being laid out. Drawing text on a bitmap image. Making a custom view that handles its own text layout (as opposed to making … Read more

Using Enums as Custom XML Attributes

June 7, 2023 by Tarik

Ex : <attr name=”myProperty” format=”enum”> <enum name=”None” value=”0″/> <enum name=”One” value=”1″/> <enum name=”Two” value=”2″/> <enum name=”Three” value=”3″/> </attr> Use like this: <YourCustomView … app:myProperty=”One”/> Reference https://stackoverflow.com/a/15231645/1329126

Android Custom Shape Button

June 2, 2023 by Tarik

Interesting question. I tried some solutions and this is what I found that has the same result of what you are trying to achieve. The solution below resolves 2 problems: Custom shape as you presented it The top right side of the button shouldn’t be clickable So this is the solution in 3 steps: Step … Read more

How do you get “android:” tag values in a Custom View

May 28, 2023 by Tarik

The namespace should be “http://schemas.android.com/apk/res/android” android is an alias declared in your xml file

When drawing outside the view clip bounds with Android: how do I prevent underling views from drawing on top of my custom view?

May 21, 2023 by Tarik

I found the solution myself, even if this is not optimal for performances. Just add: android:clipChildren=”false” to the RelativeLayout (or whatever layout you have). This has 2 effects (may be more, this are the two that interested me): – the ViewGroup doesn’t clip the drawing of his children (obvious) – the ViewGroup doesn’t check for … Read more