MagicFontSpan gives an ability to paint CharSequence with custom typeface using MagicViews library. In very similar fashion, typeface is set with a String literal which directly corresponds to the file in assets directory.

More often than not, when using MagicViews library, layout preview would break with an exception that font directory is empty. This is because the view tries to load the font even when in edit mode.

This may happen if a MagicView is used in another custom view and setFont() method is called in the code of the custom view.

Issue is avoided if all init() and setFont() methods in MagicViews are wrapped with isInEditMode() method.

This PR introduces this change. It also adds an additional example which now demonstrates that layout preview has no issue displaying custom views.

When style is set to textAppearance attribute the MagicEditText does not use the style to color text. Similar behavior is noted for EditText here: https://github.com/Prototik/HoloEverywhere/issues/730

Hi Ivan, it would be cool to add a feature to change space between characters, something similiar to this"

private static final float NO_SPACING = 0.0f;

private float letterSpacing = NO_SPACING;


public SpacingTextView(Context context) {
    super(context);
    init();
}

public SpacingTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
    getAttributes(attrs);
    init();
}

private void getAttributes(AttributeSet attrs) {
    if (attrs != null) {
        TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.SpacingTextView, 0, 0);
        letterSpacing = a.getFloat(R.styleable.SpacingTextView_tv_spacing, 0);
        a.recycle();
    }
}

private void init() {
    final float THRESHOLD = 0.001f;
    if (Math.abs(letterSpacing - NO_SPACING) > THRESHOLD) {
        String originalText = getText().toString();
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < originalText.length(); i++) {
            String c = "" + originalText.charAt(i);
            builder.append(c.toLowerCase());
            if (i + 1 < originalText.length()) {
                builder.append("\u00A0");
            }
        }

        SpannableString finalText = new SpannableString(builder.toString();
        if (builder.toString().length() > 1) {
            for (int i = 1; i < builder.toString().length(); i += 2) {
                finalText.setSpan(new ScaleXSpan(letterSpacing), i, i + 1, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
            }
        }

        setText(finalText, TextView.BufferType.SPANNABLE);
    }
}

}

As per this blog post: http://android-developers.blogspot.com/2015/04/android-support-library-221.html

There are new views which backport some cool stuff to pre-lollipop devices:

• AppCompatAutoCompleteTextView
• AppCompatButton
• AppCompatCheckBox
• AppCompatCheckedTextView
• AppCompatEditText
• AppCompatMultiAutoCompleteTextView
• AppCompatRadioButton
• AppCompatRatingBar
• AppCompatSpinner
• AppCompatTextView

We should extend these for a future MagicViews release.

The MagicFont utility class now contains a static reference to the context. This should be avoided as it can prevent the garbage collection of heavyweight objects, like activities or services.

When using as gradle dependency in AS 0.9.2 error is shown when compiling: Typeface already defined - I don't have any custom attribute named typeface in the project - possible that it clashes with v7 or v4 compat lib?

The library starts by finding every font in the assets folder. When there's a lot of file in the folder, this leads to unacceptable lag. It simply can't be used in some cases. There should be a way to disable finding every font in the assets folder and using a path to the font instead.

fontStyle should be accessible by either a getter or by being protected. I am extending MagicEditText to override the setError method so I can use the custom type face on that one also. However the font to use is in fontStyle.

I tried using FontUtils.getPrefFontStyle(context, attrs, PreferenceType.EDIT_TEXT_PREFERENCE); in the constructor, but for a reason I don't know after calling the super constructor, this method always returns null. I guess attrs gets modified along the way...

MagicTextView cannot be shown in the IDE because of the following exception:

java.lang.UnsupportedClassVersionError: com/ivankocijan/magicviews/views/MagicTextView : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:471)
    at com.intellij.util.lang.UrlClassLoader._defineClass(UrlClassLoader.java:189)
    at com.intellij.util.lang.UrlClassLoader.defineClass(UrlClassLoader.java:185)
    at com.intellij.util.lang.UrlClassLoader.findClass(UrlClassLoader.java:146)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at com.android.tools.idea.rendering.RenderClassLoader.loadClassFromJar(RenderClassLoader.java:76)
    at org.jetbrains.android.uipreview.ProjectClassLoader.loadClassFromModuleOrDependency(ProjectClassLoader.java:106)
    at org.jetbrains.android.uipreview.ProjectClassLoader.load(ProjectClassLoader.java:87)
    at com.android.tools.idea.rendering.RenderClassLoader.findClass(RenderClassLoader.java:54)
    at org.jetbrains.android.uipreview.ProjectClassLoader.findClass(ProjectClassLoader.java:54)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:174)
    at org.jetbrains.android.uipreview.ViewLoader.loadView(ViewLoader.java:97)
    at com.android.tools.idea.rendering.LayoutlibCallback.loadView(LayoutlibCallback.java:172)
    at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:207)
    at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:135)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:373)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:399)
    at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:336)
    at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:332)
    at com.android.tools.idea.rendering.RenderService$3.compute(RenderService.java:558)
    at com.android.tools.idea.rendering.RenderService$3.compute(RenderService.java:547)
    at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:932)
    at com.android.tools.idea.rendering.RenderService.createRenderSession(RenderService.java:547)
    at com.android.tools.idea.rendering.RenderService.render(RenderService.java:674)
    at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager.doRender(AndroidLayoutPreviewToolWindowManager.java:586)
    at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager.access$1900(AndroidLayoutPreviewToolWindowManager.java:80)
    at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager$6$1.run(AndroidLayoutPreviewToolWindowManager.java:528)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:178)
    at com.intellij.openapi.progress.ProgressManager.executeProcessUnderProgress(ProgressManager.java:209)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:212)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:171)
    at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager$6.run(AndroidLayoutPreviewToolWindowManager.java:523)
    at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:320)
    at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:310)
    at com.intellij.util.ui.update.MergingUpdateQueue$2.run(MergingUpdateQueue.java:254)
    at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:269)
    at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:227)
    at com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:217)
    at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238)
    at com.intellij.util.Alarm$Request$1.run(Alarm.java:327)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:695)

"allowBackup:true" code block is automatically generated by Android Studio - libraries should have this value set to false in order to avoid failures with manifest merger.

Crashlytics report from production on MagicViews version 3.0.0. (device Huawei G610 U00): Report

Init of the view method (error occurred on line 3): Init

XML layout: Layout

While introducing the last PR ( #29 ), I've noticed that some classes keep a reference to the Context. This may be an undesirable since it only might be useful for initialisation.

I propose that the part that initialises typefaces is moved to MagicViews class and that MagicFonts remains the point where typefaces live and keep their references without any Context reference.

I'm willing to do this work, but would need to discuss every change as this may be a major release (if we choose to remove deprecated methods). Would you like future PRs to go to development branch or a new branch just for this?