当我的应用程序在启动时崩溃时尝试实现自适应图标时出现此错误。
我无法想象为什么我会收到此错误,因为在下面的错误日志中提到的文件(MainActivity
和BaseActivity
)中,我不使用AdaptiveIconDrawable
和BitmapDrawable
。
2018-04-28 16:50:17.014 31282-31282/de.markustippner.wondermusic2 E/AndroidRuntime: FATAL EXCEPTION: main
Process: de.markustippner.wondermusic2, PID: 31282
java.lang.RuntimeException: Unable to start activity ComponentInfo{de.markustippner.wondermusic2/de.markustippner.wondermusic2.activities.MainActivity}: java.lang.ClassCastException: android.graphics.drawable.AdaptiveIconDrawable cannot be cast to android.graphics.drawable.BitmapDrawable
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2892)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3027)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:101)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:73)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1786)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
Caused by: java.lang.ClassCastException: android.graphics.drawable.AdaptiveIconDrawable cannot be cast to android.graphics.drawable.BitmapDrawable
at com.afollestad.appthemeengine.ATE.applyTaskDescription(ATE.java:259)
at com.afollestad.appthemeengine.ATE.preApply(ATE.java:128)
at com.afollestad.appthemeengine.ATEActivity.onCreate(ATEActivity.java:22)
at de.markustippner.wondermusic2.activities.BaseActivity.onCreate(BaseActivity.java:44)
at de.markustippner.wondermusic2.activities.MainActivity.onCreate(MainActivity.java:137)
at android.app.Activity.performCreate(Activity.java:7117)
at android.app.Activity.performCreate(Activity.java:7108)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1262)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2867)
这个错误消息的“有趣”部分是,当我删除“mipmap-anydpi-v26”文件夹时,我的应用程序不再崩溃,但随后自适应图标也无法运行...
在这两种情况下,抛出错误的行:
super.onCreate(savedInstanceState);
看来你正在使用App Theme Engine,它试图将你的app图标用作位图。但是,自Android 8.0起,您可以设置自适应图标,这不是位图,因此App Theme Engine会崩溃。
这个问题一直是reported here,但它还没有修复(可能不会,因为它已经两年没有看到任何更新)。
您可以通过分叉项目并将problematic part更改为不需要位图图标来自行修复此问题。或者,使用另一个主题引擎。
在ATE.java文件中,实现此目的
@NonNull
static private Bitmap getBitmapFromDrawable(@NonNull Drawable drawable) {
final Bitmap bmp = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bmp);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bmp;
}
并改变
if (icon == null)
icon = ((BitmapDrawable) activity.getApplicationInfo().loadIcon(activity.getPackageManager())).getBitmap();
至
if (icon == null)
icon = getBitmapFromDrawable(activity.getApplicationInfo().loadIcon(activity.getPackageManager()));
我也面临同样的错误。这是由于ic_launcher
自动创建AdaptiveIcon
。我只是删除自适应icon(ic_launcher.xml)
并运行,所以它的工作。