我已經實現了自定義TextView,然后我需要更改其文本大小以供將來使用.在那一步,我決定使用style.xml和attr.xml進行textSize自定義

但是,當我的自定義布局膨脹時,我收到運行時錯誤.與我為了自定義而更改的部件相關的錯誤.

這是我實現的代碼片段.

attr.xml

styles.xml

?attr/right_detail_text_size

layout_field_detailed.xml

android:id="@+id/layout_fielddetailed_textview_rightdetail"

style="@style/TextViewRightDetail" />

layout_implementation.xml

xmlns:iattr="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

android:id="@+id/fieldlayoutdetailed_example"

android:layout_width="match_parent"

android:layout_height="wrap_content"

iattr:right_detail_text_size="16sp"/>

FieldLayoutDetailed.java

public FieldLayoutDetailed(Context context,AttributeSet attrs) {

super(context,attrs);

TypedArray array = context.obtainStyledAttributes(attrs,R.styleable.FieldLayout,0);

LayoutInflater.from(context).inflate(R.layout.layout_field_deailed,this,true);

我在運行時遇到的錯誤

...

Caused by: java.lang.RuntimeException: Failed to resolve attribute at index 12

at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:569)

at android.widget.TextView.(TextView.java:1003)

at android.widget.TextView.(TextView.java:632)

at android.widget.TextView.(TextView.java:628)

at com.my.view.TextViewFont.(TextViewFont.java:29)

at java.lang.reflect.Constructor.newInstance(Native Method)

at java.lang.reflect.Constructor.newInstance(Constructor.java:288)

at android.view.LayoutInflater.createView(LayoutInflater.java:607)

at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)

at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)

at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)

at android.view.LayoutInflater.inflate(LayoutInflater.java:504)

at android.view.LayoutInflater.inflate(LayoutInflater.java:414)

at com.my.view.FieldLayoutDetailed.(FieldLayoutDetailed.java:50)

at java.lang.reflect.Constructor.newInstance(Native Method)

at java.lang.reflect.Constructor.newInstance(Constructor.java:288)

at android.view.LayoutInflater.createView(LayoutInflater.java:607)

at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)

at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)

at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)

at android.view.LayoutInflater.inflate(LayoutInflater.java:504)

at android.view.LayoutInflater.inflate(LayoutInflater.java:414)

at android.view.LayoutInflater.inflate(LayoutInflater.java:365)

at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:378)

at android.app.Activity.setContentView(Activity.java:2145)

at com.my.ActivityWithMenu.setContentView(ActivityWithMenu.java:77)

at com.my.FastCreditApplyMain.onCreate(FastCreditApplyMain.java:37)

at android.app.Activity.performCreate(Activity.java:5990)

at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)

at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)

at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)

at android.app.ActivityThread.access$800(ActivityThread.java:151)

at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)

at android.os.Handler.dispatchMessage(Handler.java:102)

at android.os.Looper.loop(Looper.java:135)

at android.app.ActivityThread.main(ActivityThread.java:5254)

at java.lang.reflect.Method.invoke(Native Method)

at java.lang.reflect.Method.invoke(Method.java:372)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

現在我通過動態更改文本大小來解決問題,但我很好奇問題的原因.

謝謝.

總結

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