Develop Reference

How to change the font family of SwitchCompat?

I've noticed that the SwitchCompat's font does not seem to change with what I've set in the fontFamily field. I've also tried using styles with custom fontFamily (which works on TextViews) and even the switchTextAppearance field. It does apply on the preview (I know the preview is not really accurate) but not when I tried running it on my test device.
Here's my SwitchCompat:
<android.support.v7.widget.SwitchCompat
style="#style/MyStyle.Body"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="#font/my_font_family"
android:text="Enable"
app:switchTextAppearance="#style/MyStyle.Body"/>
and here's my style:
<style name="MyStyle.Body" parent="Base.TextAppearance.AppCompat.Body1">
<item name="android:textSize">14sp</item>
<item name="android:fontFamily">#font/my_font_family</item>
<item name="android:textColor">#color/color_primary_text</item>
</style>
As you can see, I only really want to change it's font
EDIT
I've changed my style to this
<style name="MyStyle.Switch" parent="Widget.AppCompat.CompoundButton.Switch">
<item name="android:textSize">14sp</item>
<item name="android:textColor">#color/color_primary_text</item>
<item name="android:fontFamily">#font/my_font_family</item>
<item name="fontFamily">#font/my_font_family</item>
</style>
still doesn't work though

XML settings is not working, therefore I use following code:
someSwitch.setTypeface(ResourcesCompat.getFont(context, R.font.roboto));

Try
parent="Base.TextAppearance.AppCompat.Body1"
replace into this
parent="TextAppearance.AppCompat.Widget.Switch"

Try below
public class CustomSwitchCompact extends SwitchCompat {
public CustomSwitchCompact(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
public CustomSwitchCompact(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public CustomSwitchCompact(Context context) {
super(context);
init();
}
private void init() {
if (!isInEditMode()) {
Typeface myFonts = Typeface.createFromAsset(getContext().getAssets(),
"fonts/Roboto_Bold.ttf");
setTypeface(myFonts);
}
}
}
XML file
<com.test.CustomSwitchCompact
android:id="#+id/switch_compat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:checked="false"
android:padding="20dp"
android:text="SwitchCompat"
android:textOff="OFF"
android:textOn="ON"
app:showText="true" />
Another way to achieve SwitchCompact with custom font
<android.support.v7.widget.SwitchCompat
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/adamSwitch"
android:textColor="#color/top_color"
android:textAppearance="#color/top_color"
android:gravity="center"
app:showText="true"
android:fontFamily="#font/my_font_family"
app:theme="#style/Custom.Widget.SwitchCompat"
app:switchPadding="5dp"
/>
in style.xml
<style name="Custom.Widget.SwitchCompat" parent="Widget.AppCompat.CompoundButton.Switch" >
<item name="android:textColorPrimary">#color/blue</item>
<item name="android:textSize">14sp</item>
<item name="android:fontFamily">#font/my_font_family</item>
<item name="android:textColor">#color/color_primary_text</item>
</style>

The only thing that works for me is setSwitchTypeface, not setTypeface:
my_switch.setSwitchTypeface(ResourcesCompat.getFont(context, R.font.my_font))

I've used android:textAppearance instead of android:switchTextAppearance and custom font works now. Also my switch style have Widget.AppCompat.CompoundButton.Switch as parent

Styling android.support.v7.preference.SeekBarPreference

First of all I am pretty new in programming Xamarin and Android. I have created a SeekbarPreference but some how they layout does not display all correctly. The value is dropping of from the box (see picture).
My styles.xml:
<?xml version="1.0" encoding="utf-8" ?>
<resources>
<style name="MyTheme" parent="MyTheme.Base">
</style>
<style name="MyTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#EC6A1E</item>
<item name="colorAccent">#EC6A1E</item>
<item name="toolbarStyle">#style/custom_toolbar</item>
<item name="preferenceTheme">#style/PreferenceThemeOverlay.v14.Material.Fix</item>
</style>
<style name="custom_toolbar" parent="#style/Widget.AppCompat.Toolbar">
<item name="titleTextColor">#FFFFFF</item>
</style>
<style name="PreferenceThemeOverlay.v14.Material.Fix" parent="PreferenceThemeOverlay.v14.Material">
<item name="seekBarPreferenceStyle">#style/Preference.SeekBarPreference.Fix</item>
</style>
<style name="Preference.SeekBarPreference.Fix">
</style>
</resources>
Here is my settings.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.preference.PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android">
<android.support.v7.preference.SeekBarPreference
android:id="#+id/preference_range_seek_bar"
android:layout_height="wrap_content"
android:key="range"
android:title="Range"
android:summary="Here you can set the range of your location"
android:max="10000"
android:defaultValue="500" />
<android.support.v7.preference.SeekBarPreference
android:key="favRange"
android:title="Favorite Range"
android:summary="Here you can set the range of your Favorite location"
android:max="10000"
android:defaultValue="500" />
<android.support.v7.preference.Preference android:title="Title" android:summary="This is the summary">
</android.support.v7.preference.Preference>
</android.support.v7.preference.PreferenceScreen>
What I do not understand is how can I find which xml attributes I can use on the SeekBarPreference to fix this. When I look in Googles Documents I cannot find a description of xml attributes on this SeekBarPreference.
I know my theme is fuzzy as I played a lot with it. But when I have it working I will adjust this.
Hopefully someone could help me, or have an example..

Ran into the same issue. Here you go with the solution, testion on emulator running API 25:
Step 1, Create a new class that extends SeekBarPreference
public class CustomSeekBarPreference extends SeekBarPreference {
private TextView mSeekBarValueTextView;
public CustomSeekBarPreference(Context context,
AttributeSet attributeSet,
int i, int i1) {
super(context, attributeSet, i, i1);
}
public CustomSeekBarPreference(Context context, AttributeSet attributeSet, int i) {
super(context, attributeSet, i);
}
public CustomSeekBarPreference(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
}
public CustomSeekBarPreference(Context context) {
super(context);
}
#Override
public void onBindViewHolder(PreferenceViewHolder preferenceViewHolder) {
super.onBindViewHolder(preferenceViewHolder);
mSeekBarValueTextView = (TextView) preferenceViewHolder.findViewById(android.support.v7.preference.R.id.seekbar_value);
if (mSeekBarValueTextView != null) {
LayoutParams layoutParams = mSeekBarValueTextView.getLayoutParams();
layoutParams.height = LayoutParams.WRAP_CONTENT;
mSeekBarValueTextView.setLayoutParams(layoutParams);
}
}
}
In your preferences.xml replace the SeekBarPreference class name with the custom class name.
<com.google.xxx.view.CustomSeekBarPreference
android:key="cacheLimit"
android:title="#string/setting_cache_limit_title"
android:dependency="enableCaching"
android:defaultValue="20"
android:max="40"/>

Custom style for all Edit Texts in the application

I have an Android application which uses Material design theme with backward compatibility through AppCompat.
There are multiple Textview's and EditText's in my application. I would like the same properties to be applied to all these TextView's and EditText's across the application. In order to achieve this, i have defined a custom style as shown below:
<!-- Base application theme. -->
<style name="ParentTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
<style name="ArabicTheme" parent="ParentTheme">
<item name="android:editTextStyle">#style/arabicEditText</item>
<item name="android:textViewStyle">#style/arabicTextView</item>
</style>
<style name="arabicEditText" parent="#android:style/Widget.EditText">
<item name="android:gravity">right</item>
<item name="android:ellipsize">end</item>
</style>
<style name="arabicTextView" parent="#android:style/Widget.TextView">
<item name="android:gravity">right</item>
</style>
In my AndroidManifest.xml file under the <Application> tag, i have set android:theme="#style/ArabicTheme".
Below is the output of the activity:
As seen in the above output, the Style is being applied to TextView only. However, The same is not being applied to EditText.
Incase, if i explicitly specify these properties to the EditText in the corresponding Actitivy's xml as shown below:
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:hint="Name"
android:ellipsize="end"
android:gravity="right"
android:ems="10"
android:layout_below="#+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="16dp"
android:id="#+id/editText" />
i.e I have explicitly added android:ellipsize="end" and android:gravity="right" to the <EditText>, and only then the output is as expected:
Like i said, i have multiple TextView's and EditText's and i cannot explicitly add these properties to all of them. So, is there a way i can achieve this using Styles or any other approach? Am i doing something wrong here?

Your approach is correct. Just remove android: from the editText's attribute name:
<item name="editTextStyle">#style/arabicEditText</item>
I cannot explain this though. I guess appCompat things don't reuse android attributes, but add another ones with similiar names. Same goes with colorPrimary, srcCompat and others.

I have been doing this
public class LightEditText extends android.widget.EditText{
public LightEditText(Context context) {
super(context);
setFont();
}
public LightEditText(Context context, AttributeSet attrs) {
super(context, attrs);
setFont();
}
public LightEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
setFont();
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
public LightEditText(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
setFont();
}
/**
* This method is used to set the given font to the TextView.
*/
private void setFont() {
Typeface typeface = TypefaceCache.get(getContext().getAssets(), "fonts/Roboto-Light.ttf");
setTypeface(typeface);
}
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
}
}
Then inside your xml file
<com.packagename.LightEditText
android:id="#+id/edtTaskName"
android:layout_height="wrap_content"
android:layout_width="match_parent"/>
Do the above method for setting common properties(fontType,style..etc) to editext

How to set default parameters to custom UI Class?

I have created a Custom Class called RoundedButton that extends Button. I want to assign some default parameters. How to go about it?
There was no change after I implemented the xml codes below. Basically the style was not getting added by default. I don't know what I am missing.
in styles.xml
<resources>
<style name="AppTheme" parent="#android:style/Theme.Light">
<item name="RoundedButtonStyle">#style/CustomView</item>
</style>
<style name="CustomView">
<item name="android:clickable">true</item>
<item name="android:focusable">true</item>
<item name="android:focusableInTouchMode">true</item>
<item name="android:colorBackground">#color/transparent</item>
<item name="android:textColor">#color/blue</item>
<item name="android:windowBackground">#color/transparent</item>
<item name="android:background">#drawable/button_border</item>
<item name="android:gravity">center</item>
</style>
</resources>
in attrs.xml
<resources>
<attr name="RoundedButtonStyle" type="reference" />
</resources>
manifest:
android:theme="#style/AppTheme"
RoundButton.java
public RoundedButton(Context context) {
super(context);
ctx = context;
}
public RoundedButton(Context context, AttributeSet attrs) {
super(context, attrs, R.attr.RoundedButtonStyle);
ctx = context;
TypedArray attrsArray = context.obtainStyledAttributes(attrs, R.styleable.RoundedButtonAttrs, 0, 0);
initAttributesArray(attrsArray);
attrsArray.recycle();
initializeRoundedButton();
}
I have used this and this for trying to solve it.
EDIT: Earlier I had an issue that the background was light grey and did not change, I discovered the issue was because of a line of code that I had later in the UI Class.

Apply style for button group in Android

In my Android application I need to apply style for a group of buttons, instead of styling each button individual. Something like this:
<?xml version="1.0" encoding="utf-8"?>
<!-- put here style="#ststyle/Button_Style" -->
<Button android:id="#+id/button1" android:text="#string/b01" />
<Button android:id="#+id/button2" android:text="#string/b02" />
<Button android:id="#+id/button4" android:text="#string/b03" />
<!-- end style -->

You can write the style for button like this ;
style_btn.xml
<style name="style_btn" parent="Wrap">
<item name="android:background">#drawable/btn_bg</item>
<item name="android:gravity">center</item>
<item name="android:textColor">#android:color/white</item>
<item name="android:textStyle">bold</item>
<item name="android:layout_marginTop">4dp</item>
<item name="android:minWidth">90dp</item>
</style>
apply that style to your button :
<Button
android:id="#+id/attach_file"
style="#style/style_btn"
android:layout_centerVertical="true"
android:background="#drawable/orange_bg"
android:drawablePadding="10dp"
android:drawableRight="#drawable/attach"
android:text="#string/str_email_attach" />

If you need the style to all of the buttons in your application, mention in your App theme style, Then no need to apply for every button.
<style name="YourTheme" parent="android:Theme.Light">
<item name="android:buttonStyle">#style/Button</item>
</style>
If you need the style to particluar button , then apply to every button
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="#style/Button"
android:text="Button" />

I know I'm late joining the party but I stumbled across this when trying to figure out the same problem myself.
What I did was:
Depending on how may button groups you have (say 3 for example) you need to subclass button and create three custom button classes (see below)
//Custom button 1
public class CustomButton1 extends Button {
public CustomButton1(Context context, AttributeSet attrs) {
super(context, attrs, R.attr.attrStyle1);
}
public CustomButton1(Context context, AttributeSet attrs, int defStyle) {
super(context, null, R.attr.attrStyle1);
}
}
//Custom button 2
public class CustomButton2 extends Button {
public CustomButton2(Context context, AttributeSet attrs) {
super(context, attrs, R.attr.attrStyle2);
}
public CustomButton2(Context context, AttributeSet attrs, int defStyle) {
super(context, null, R.attr.attrStyle2);
}
}
//Custom button 3
public class CustomButton3 extends Button {
public CustomButton3(Context context, AttributeSet attrs) {
super(context, attrs, R.attr.attrStyle3);
}
public CustomButton3(Context context, AttributeSet attrs, int defStyle) {
super(context, null, R.attr.attrStyle3);
}
}
You can see from the custom classes I have passed a custom attr. These I define in my styles.xml and use them as reference. See my styles.xml below:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
</style>
<style name="theme1">
<item name="#attr/attrStyle1">#style/CustomButton1</item>
<item name="#attr/attrStyle2">#style/CustomButton2</item>
<item name="#attr/attrStyle3">#style/CustomButton3</item>
<item name="android:background">#color/warning_yellow_colour</item>
</style>
<style name="CustomButton1" parent = "#android:style/Widget.Button">
<item name="android:textColor">#color/white_colour</item>
<item name="android:padding">20dp</item>
<item name="android:background">#color/banner_background_sensor_colour</item>
</style>
<style name="CustomButton2" parent = "#android:style/Widget.Button">
<item name="android:textColor">#color/white_colour</item>
<item name="android:padding">20dp</item>
<item name="android:background">#color/button_red_colour</item>
</style>
<style name="CustomButton3" parent = "#android:style/Widget.Button">
<item name="android:textColor">#color/white_colour</item>
<item name="android:padding">20dp</item>
<item name="android:background">#color/text_blue_colour</item>
</style>
<attr name="attrStyle1" format="reference"/>
<attr name="attrStyle2" format="reference"/>
<attr name="attrStyle3" format="reference"/>
By linking the style to the attr, you then apply that style to your custom class, which you can then duplicate as many times as needed
CustomButton1 theme1 = (CustomButton1)findViewById(R.id.theme1);
CustomButton2 theme2 = (CustomButton2)findViewById(R.id.theme2);
CustomButton3 theme3 = (CustomButton3)findViewById(R.id.theme3);
Hopefully this is of benefit to someone!