是否可以在我的一个java代码中更改CheckedTextView的图像android：drawableRight？
我尝试使用一些checkedtextview.setCompoundDrawable但它一直在崩溃。
Xml：
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/text1"
android:layout_width="match_parent"
android:layout_height="?android:attr/listPreferredItemHeightSmall"
android:checkMark="?android:attr/listChoiceIndicatorMultiple"
android:drawableRight="@drawable/test_draw"
android:gravity="center_vertical"
android:paddingLeft="10dip"
android:paddingRight="10dip"
android:text="Hello"
android:textAppearance="?android:attr/textAppearanceListItemSmall"
android:theme="@style/WhiteCheck" />
编辑：使用int
的代码错误st3 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.carte.alex.test3, PID: 8817
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.carte.alex.test3/com.carte.alex.test3.Main2Activity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.CheckedTextView.setCompoundDrawablesWithIntrinsicBounds(int, int, int, int)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.CheckedTextView.setCompoundDrawablesWithIntrinsicBounds(int, int, int, int)' on a null object reference
at com.carte.alex.test3.Main2Activity.onCreate(Main2Activity.java:85)
at android.app.Activity.performCreate(Activity.java:6662)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
错误2使用
checkedtextview.setCompoundDrawables（NULL，NULL，NULL，NULL）;
FATAL EXCEPTION: main
Process: com.carte.alex.test3, PID: 10772
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.carte.alex.test3/com.carte.alex.test3.Main2Activity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.CheckedTextView.setCompoundDrawables(android.graphics.drawable.Drawable, android.graphics.drawable.Drawable, android.graphics.drawable.Drawable, android.graphics.drawable.Drawable)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.CheckedTextView.setCompoundDrawables(android.graphics.drawable.Drawable, android.graphics.drawable.Drawable, android.graphics.drawable.Drawable, android.graphics.drawable.Drawable)' on a null object reference
at com.carte.alex.test3.Main2Activity.onCreate(Main2Activity.java:86)
at android.app.Activity.performCreate(Activity.java:6662)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)