android.view.InflateException: Binary XML file line #2: Error inflating class <unknown> [英] android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>

问题描述

我正在开发一个简单的应用程序.刚刚完成主屏幕.如果方向变化超过两次，则抛出错误，应用程序强制关闭.

I am developing a simple app. Just finished the home screen. If the orientation changes more than two times, it is throwing the error and application is force closing.

public class PasswordActivity extends Activity implements OnClickListener {
Button login;  
Button forgot;
Button register;  

private static final String PREFERENCES = "prefs";
private static final String PREFERENCES_NAME = "pref_name"; 
SharedPreferences settings;
private Cursor c;

@Override 
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main); 
    login=(Button)findViewById(R.id.login_login);
    login.setOnClickListener(this);
    register=(Button)findViewById(R.id.login_register);
    register.setOnClickListener(this);

}
public void onClick(View v) {
}

}

我的 XML 代码:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"    
android:background="@drawable/listpic"
>

<LinearLayout 
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="5dp"
android:paddingLeft="3dp"
android:paddingRight="3dp"
>  
<TextView 
 android:layout_width="fill_parent"
 android:layout_weight="0.75"
 android:layout_height="wrap_content"
 android:text="@string/login_user_name"
 android:textStyle="bold"
 />
<EditText 
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:layout_weight="0.25"
 android:id="@+id/login_user_name"
 android:inputType="text"
 />
</LinearLayout>
<LinearLayout 
  android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="3dp"
android:paddingRight="3dp"
  >  
<TextView 
 android:layout_width="fill_parent"
 android:layout_weight="0.75"
 android:layout_height="wrap_content"
 android:text="@string/login_password"
 android:textStyle="bold"
 />
<EditText 
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:layout_weight="0.25"
 android:inputType="textPassword"
 android:id="@+id/login_password"
 />
</LinearLayout>

<LinearLayout 
  android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="3dp"
android:paddingRight="3dp"
  >  
<Button 
 style="@style/left_button"
 android:text="@string/login_submit"
 android:id="@+id/login_login"
 />

<Button 
  style="@style/right_button"
  android:id="@+id/login_register"
  android:text="@string/register"

    />

</LinearLayout>
</LinearLayout>

记录猫详情:

10-21 12:05:59.982: D/dalvikvm(622): GC_EXTERNAL_ALLOC freed 774 objects / 56240 bytes in 61ms
10-21 12:06:15.031: D/dalvikvm(622): GC_EXTERNAL_ALLOC freed 737 objects / 30992 bytes in 59ms
10-21 12:06:18.022: E/dalvikvm-heap(622): 7596000-byte external allocation too large for this process.
10-21 12:06:18.022: E/GraphicsJNI(622): VM won't let us allocate 7596000 bytes
10-21 12:06:18.043: D/AndroidRuntime(622): Shutting down VM
10-21 12:06:18.043: W/dalvikvm(622): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
10-21 12:06:18.092: E/AndroidRuntime(622): FATAL EXCEPTION: main
10-21 12:06:18.092: E/AndroidRuntime(622): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ravi.password/com.ravi.password.PasswordActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.app.ActivityThread.main(ActivityThread.java:4627)
10-21 12:06:18.092: E/AndroidRuntime(622):  at java.lang.reflect.Method.invokeNative(Native Method)
10-21 12:06:18.092: E/AndroidRuntime(622):  at java.lang.reflect.Method.invoke(Method.java:521)
10-21 12:06:18.092: E/AndroidRuntime(622):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
10-21 12:06:18.092: E/AndroidRuntime(622):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
10-21 12:06:18.092: E/AndroidRuntime(622):  at dalvik.system.NativeStart.main(Native Method)
10-21 12:06:18.092: E/AndroidRuntime(622): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.view.LayoutInflater.createView(LayoutInflater.java:513)
10-21 12:06:18.092: E/AndroidRuntime(622):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
10-21 12:06:18.092: E/AndroidRuntime(622):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.app.Activity.setContentView(Activity.java:1647)
10-21 12:06:18.092: E/AndroidRuntime(622):  at com.ravi.password.PasswordActivity.onCreate(PasswordActivity.java:34)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
10-21 12:06:18.092: E/AndroidRuntime(622):  ... 12 more
10-21 12:06:18.092: E/AndroidRuntime(622): Caused by: java.lang.reflect.InvocationTargetException
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.widget.LinearLayout.<init>(LinearLayout.java:115)
10-21 12:06:18.092: E/AndroidRuntime(622):  at java.lang.reflect.Constructor.constructNative(Native Method)
10-21 12:06:18.092: E/AndroidRuntime(622):  at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.view.LayoutInflater.createView(LayoutInflater.java:500)
 10-21 12:06:18.092: E/AndroidRuntime(622):     ... 22 more
 10-21 12:06:18.092: E/AndroidRuntime(622): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.graphics.Bitmap.nativeCreate(Native Method)
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.graphics.Bitmap.createBitmap(Bitmap.java:468)
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.graphics.Bitmap.createBitmap(Bitmap.java:435)
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:340)
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.graphics.BitmapFactory.finishDecode(BitmapFactory.java:488)
 10-21 12:06:18.092: E/AndroidRuntime(622):     at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:462)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:323)
10-21 12:06:18.092: E/AndroidRuntime(622):  at android.view.ViewGroup.<init>(ViewGroup.java:285)
10-21 12:06:18.092: E/AndroidRuntime(622):  ... 26 more 

图片非常小，大约 5kb.

Images are of very small size around 5kb.

推荐答案

在运行时，Android 根据需要(基于屏幕大小和分辨率)调整图像大小.它使用位图在内部进行大小调整.显然，这非常占用内存(有点像疯了一样分配内存).解决此类问题的一种快速方法是将所有可绘制文件复制到 drawable-ldpi、mdpi、hdpi 文件夹.这样，android 只会从这些文件夹中提取文件，而不是调整它们的大小.

At runtime, Android resize's images based on need (based on the screen size and resolution). It uses Bitmap's for doing the resizing internally. Which, obviously, is very memory intensive (kinda allocates memory like crazy). One quick way to fix such issues can be, that you copy all drawable files to drawable-ldpi, mdpi, hdpi folders. This way android will just pick up the files from these folders and not resize them.

这是一个随机的异常，修复起来真的很痛苦.

Its a random kind exception, a real pain to fix.

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