启动活动未开始

Question

添加启动屏幕后，我的应用程序崩溃了。 下面是错误日志，xml和java文件。 我在其他应用程序中大多使用了相同的代码，但我不明白为什么它在这里不起作用请帮助

04-09 20:36:05.469: E/AndroidRuntime(27529): FATAL EXCEPTION: main
04-09 20:36:05.469: E/AndroidRuntime(27529): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.zaidi.mindmapmaker/com.behram.mindmapmaker.SplashScreen}: android.view.InflateException: Binary XML file line #8: Error inflating class <unknown>
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.ActivityThread.access$600(ActivityThread.java:123)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.os.Handler.dispatchMessage(Handler.java:99)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.os.Looper.loop(Looper.java:137)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.ActivityThread.main(ActivityThread.java:4424)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at java.lang.reflect.Method.invokeNative(Native Method)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at java.lang.reflect.Method.invoke(Method.java:511)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:825)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:592)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at dalvik.system.NativeStart.main(Native Method)
04-09 20:36:05.469: E/AndroidRuntime(27529): Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class <unknown>
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.createView(LayoutInflater.java:606)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:653)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:678)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:251)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.Activity.setContentView(Activity.java:1835)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at com.behram.mindmapmaker.SplashScreen.onCreate(SplashScreen.java:18)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.Activity.performCreate(Activity.java:4465)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1051)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
04-09 20:36:05.469: E/AndroidRuntime(27529):    ... 11 more
04-09 20:36:05.469: E/AndroidRuntime(27529): Caused by: java.lang.reflect.InvocationTargetException
04-09 20:36:05.469: E/AndroidRuntime(27529):    at java.lang.reflect.Constructor.constructNative(Native Method)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.view.LayoutInflater.createView(LayoutInflater.java:586)
04-09 20:36:05.469: E/AndroidRuntime(27529):    ... 24 more
04-09 20:36:05.469: E/AndroidRuntime(27529): Caused by: java.lang.OutOfMemoryError
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:483)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:351)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:773)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.content.res.Resources.loadDrawable(Resources.java:1935)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.widget.ImageView.<init>(ImageView.java:119)
04-09 20:36:05.469: E/AndroidRuntime(27529):    at android.widget.ImageView.<init>(ImageView.java:109)
04-09 20:36:05.469: E/AndroidRuntime(27529):    ... 27 more

splash_screen.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/splash" />

</LinearLayout>

SplashScreen.java

public class SplashScreen extends Activity {

// Splash screen timer
private static int SPLASH_TIME_OUT = 3000;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash_screen);

    new Handler().postDelayed(new Runnable() {

        /*
         * Showing splash screen with a timer. This will be useful when you
         * want to show case your app logo / company
         */

        @Override
        public void run() {
            // This method will be executed once the timer is over
            // Start your app main activity
            Intent i = new Intent(SplashScreen.this, ActivityB.class);
            startActivity(i);

            // close this activity
            finish();
        }
    }, SPLASH_TIME_OUT);
}

}

Answer 1

造成原因：java.lang.OutOfMemoryError

您需要按比例缩小图像。 它占用太多空间，导致OOM。 我认为从api 3.0开始，位图像素数据存储在堆中。

位图的内存不足错误

报价文件

如果您的应用已达到堆容量并尝试分配更多内存，它将收到OutOfMemoryError。

检查有效加载图像@

http://developer.android.com/training/displaying-bitmaps/load-bitmap.html

还要检查

检查一下

https://developer.android.com/training/displaying-bitmaps/manage-memory.html

Answer 2

该错误是由java.lang.OutOfMemoryError引起的

这取决于位图的大小，当您在计算机上读取尺寸时，Android似乎会分配比图像尺寸多一点的空间。 所以...

• 您可以使用较小的图像。
• Google实际上已经在此处发布了有关避免OutOfMemoryErrors的指南，这对您很有帮助，尽管我也必须使用较小的图像尺寸。
• 一种几乎可以肯定起作用的方法是在清单中的应用程序标记之间设置android：largeHeap =“ true”。 这将增加您的堆大小，但可能会使您的应用程序滞后一些。

也许对您来说，将这些想法结合起来是可行的。

请参阅此链接以有效显示位图

要么

以编程方式将图像添加到图像视图

 if(imageView != null) {
    ((BitmapDrawable)imageView.getDrawable()).getBitmap().recycle();
    imageView = (ImageView) view.findViewById(R.id.imageView);
    imageView.setImageResource(resID);
}
else {
    imageView = (ImageView) view.findViewById(R.id.imageView);
    imageView.setImageResource(resID);
}