how to create custom font in android?

Question

How can i use the custom font which we add in asset folder in xml? I want to create custom font for app.. but I run the programme ,it has exception. this is my java code:

  public class MainActivity extends TextView {

  private static final String TAG = "TextView";

    public MainActivity(Context context) {
        super(context);
    }

    public MainActivity(Context context, AttributeSet attrs) {
        super(context, attrs);
        setCustomFont(context, attrs);
    }

    public MainActivity(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        setCustomFont(context, attrs);
    }

    private void setCustomFont(Context ctx, AttributeSet attrs) {
        TypedArray a = ctx.obtainStyledAttributes(attrs, R.styleable.textfont);
        String customFont = a.getString(R.styleable.TextViewPlus_customFont);
        setCustomFont(ctx, customFont);
        a.recycle();
    }

    public boolean setCustomFont(Context ctx, String asset) {
        Typeface tf = null;
        try {
        tf = Typeface.createFromAsset(ctx.getAssets(), asset);  
        } catch (Exception e) {
            Log.e(TAG, "Could not get typeface: "+e.getMessage());
            return false;
        }

        setTypeface(tf);  
        return true;
    }


}

and create a folder in res/values/attrs

 <?xml version="1.0" encoding="utf-8"?>
   <resources>
   <declare-styleable name="textfont">
    <attr name="customFont" format="string"/>
</declare-styleable>
 </resources>

and xml:

<LinearLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:foo="http://schemas.android.com/apk/res/com.example.changfont"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">

<com.example.changfont.MainActivity
    android:id="@+id/textViewPlus1"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:text="helooo"
    foo:customFont="aaa.ttf">
</com.example.changfont.MainActivity>

logcat is:

 09-09 20:44:28.063: E/AndroidRuntime(11515): FATAL EXCEPTION: main
 09-09 20:44:28.063: E/AndroidRuntime(11515): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.changfont/com.example.changfont.MainActivity}: java.lang.InstantiationException: can't instantiate class com.example.changfont.MainActivity; no empty constructor
 09-09 20:44:28.063: E/AndroidRuntime(11515):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1891)

I do not know what the problem is ? please help me.

possible duplicate of [How to change fontFamily of TextView in Android](http://stackoverflow.com/questions/12128331/how-to-change-fontfamily-of-textview-in-android) — Thom Wiggers, Sep 07 '14 at 16:17
try [http://stackoverflow.com/a/3651168/3326331](http://stackoverflow.com/a/3651168/3326331) — Sagar Pilkhwal, Sep 07 '14 at 16:18
Check : http://stackoverflow.com/questions/25599333/getting-error-in-setting-custom-text-style-in-my-application/25600041#25600041 — Haresh Chhelana, Sep 08 '14 at 04:54

score 0 · Answer 1 · answered Sep 08 '14 at 09:35

Your MainActivity is not an Activity but a TextView. It cannot be instantiated as an activity and should not be declared in the manifest.

Looks like you need to:

Rename this MainActivity to something like `MyCustomTextView``
Implement MainActivity as an activity that calls setContentView() with a layout that contains an instance of your MyCustomTextView, such as the XML you posted (with MainActivity renamed).

how to create custom font in android?

1 Answers1