在我的应用程序的文本视图中为自定义字体编写代码时，视图膨胀异常错误

Question

我正在为我的文本视图使用以下类作为自定义字体。导入android.content.Context；导入android.graphics.Typeface；导入android.util.AttributeSet；导入android.widget.TextView；

public class MyTextView extends TextView{
    public MyTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }
    public MyTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }
    public MyTextView(Context context) {
        super(context);
        init();
    }
    private void init() {
        Typeface tf = Typeface.createFromAsset(getContext().getAssets(),
                                               "DIEHLD_DECO.ttf");
        setTypeface(tf);
    }
}

这是包含我的文本的xml文件查看

<com.example.application1.views.MyTextView 
        android:textSize="27.0sp" 
        android:textColor="@android:color/white" 
        android:gravity="top" 
        android:layout_gravity="center" 
        android:id="@+id/tname" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        />

在运行应用程序时，我的logcat显示以下错误。

10-31 16:09:33.249: E/AndroidRuntime(17017): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.application1/com.example.application1.MySlideShows}: android.view.InflateException: Binary XML file line #11: Error inflating class com.example.application1.views.MyTextView
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2211)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.ActivityThread.access$600(ActivityThread.java:149)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.os.Handler.dispatchMessage(Handler.java:99)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.os.Looper.loop(Looper.java:153)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.ActivityThread.main(ActivityThread.java:5086)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at java.lang.reflect.Method.invokeNative(Native Method)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at java.lang.reflect.Method.invoke(Method.java:511)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at dalvik.system.NativeStart.main(Native Method)
10-31 16:09:33.249: E/AndroidRuntime(17017): Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class com.example.application1.views.MyTextView
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.createView(LayoutInflater.java:613)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:258)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.Activity.setContentView(Activity.java:1867)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at com.example.application1.MySlideShows.onCreate(MySlideShows.java:73)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.Activity.performCreate(Activity.java:5020)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
10-31 16:09:33.249: E/AndroidRuntime(17017):    ... 11 more
10-31 16:09:33.249: E/AndroidRuntime(17017): Caused by: java.lang.reflect.InvocationTargetException
10-31 16:09:33.249: E/AndroidRuntime(17017):    at java.lang.reflect.Constructor.constructNative(Native Method)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.view.LayoutInflater.createView(LayoutInflater.java:587)
10-31 16:09:33.249: E/AndroidRuntime(17017):    ... 22 more
10-31 16:09:33.249: E/AndroidRuntime(17017): Caused by: java.lang.RuntimeException: native typeface cannot be made
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.graphics.Typeface.<init>(Typeface.java:175)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at android.graphics.Typeface.createFromAsset(Typeface.java:149)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at com.example.application1.views.MyTextView.init(MyTextView.java:26)
10-31 16:09:33.249: E/AndroidRuntime(17017):    at com.example.application1.views.MyTextView.<init>(MyTextView.java:17)
10-31 16:09:33.249: E/AndroidRuntime(17017):    ... 25 more

Answer 1

试试这种方法，希望这能帮助你解决问题

您需要当前的上下文引用，而不是getContext（），所以只需将上下文引用从所有构造函数传递给intit方法即可。

public class MyTextView extends TextView{

    public MyTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init(context);
    }
    public MyTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }
    public MyTextView(Context context) {
        super(context);
        init(context);
    }
    private void init(Context context) {
        Typeface tf = Typeface.createFromAsset(context.getAssets(),"DIEHLD_DECO.ttf");
        setTypeface(tf);
    }
}