頻繁に呼び出すことができるアクティビティがあります。アクティビティは、画像を表示して 3 秒後に終了するスプラッシュ スクリーンの形式です。ただし、2 回目に頻繁に呼び出されると、アクティビティがクラッシュします。
以下はコード スニペットです。
public class SplashActivity extends Activity {
private long splashDelay = 3000; //3 seconds
ImageView imageView = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle b = getIntent().getExtras();
int value = b.getInt("key");
imageView = new ImageView(this);
imageView.setImageResource(Utility.getImageIDofGalleryAlphabets(value));
setContentView(imageView);
TimerTask task = new TimerTask()
{
@Override
public void run() {
BitmapDrawable bitmapDrawable = ((BitmapDrawable) imageView.getDrawable());
if (null != bitmapDrawable && !bitmapDrawable.getBitmap().isRecycled()) {
bitmapDrawable.getBitmap().recycle();
}
bitmapDrawable = null;
imageView = null;
finish();
}
};
Timer timer = new Timer();
timer.schedule(task, splashDelay);
}
}
以下は実行時例外です。
java.lang.RuntimeException: Canvas: trying to use a recycled bitmap android.graphics.Bitmap@448dec68
at android.graphics.Canvas.throwIfRecycled(Canvas.java:955)
at android.graphics.Canvas.drawBitmap(Canvas.java:1044)
at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:323)
at android.widget.ImageView.onDraw(ImageView.java:923)
at android.view.View.draw(View.java:6739)
at android.view.ViewGroup.drawChild(ViewGroup.java:1648)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.View.draw(View.java:6742)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at android.view.ViewGroup.drawChild(ViewGroup.java:1648)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.View.draw(View.java:6742)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1872)
at android.view.ViewRoot.draw(ViewRoot.java:1422)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1167)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1744)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:4914)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at dalvik.system.NativeStart.main(Native Method)
よろしくお願いします