Android的logcat中给出了关于SearchView类错误 [英] Android, Logcat gives error about SearchView class

问题描述

我已经安装了支持库，以获得操作栏也是android的$工作p $ P API 11

i have installed the support library to get the action bar worked also in android pre API 11

当我启动应用程序时，logcat的给这个错误：

When i start the application, the logcat give this error:

08-20 19:54:41.600: I/dalvikvm(9828): Failed resolving Landroid/support/v7/widget/SearchView$5; interface 809 'Landroid/view/View$OnLayoutChangeListener;'

08-20 19:54:41.600: W/dalvikvm(9828): Link of class 'Landroid/support/v7/widget/SearchView$5;' failed

08-20 19:54:41.600: E/dalvikvm(9828): Could not find class 'android.support.v7.widget.SearchView$5', referenced from method android.support.v7.widget.SearchView.addOnLayoutChangeListenerToDropDownAnchorSDK11

08-20 19:54:41.600: W/dalvikvm(9828): VFY: unable to resolve new-instance 734 (Landroid/support/v7/widget/SearchView$5;) in Landroid/support/v7/widget/SearchView;

08-20 19:54:41.600: D/dalvikvm(9828): VFY: replacing opcode 0x22 at 0x0002

08-20 19:54:41.600: D/dalvikvm(9828): VFY: dead code 0x0004-000a in Landroid/support/v7/widget/SearchView;.addOnLayoutChangeListenerToDropDownAnchorSDK11 ()V

有人可以帮助我，我在网上搜索周围，但我什么也没找到。 谢谢

Can someone help me, i search around the web but i found nothing. Thank you

MainActivity.Java

MainActivity.Java

    package com.example.fanculo;

    import android.os.Bundle;
    import android.app.SearchManager;
    import android.content.Context;
    import android.support.v4.view.MenuItemCompat;
    import android.support.v7.widget.SearchView;
    import android.support.v7.app.ActionBar;
    import android.support.v7.app.ActionBarActivity;
    import android.view.Menu;
    import android.view.MenuItem;


    public class MainActivity extends ActionBarActivity{

ActionBar actionBar;

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

    actionBar = getSupportActionBar();
    actionBar.setTitle("Test");

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    MenuItem searchItem = menu.findItem(R.id.action_search);
    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);

     SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    // Configure the search info and add any event listeners
     searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
     searchView.setIconifiedByDefault(true); 
    return super.onCreateOptionsMenu(menu);

}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.action_search:
            onSearchRequested();
            return true;
        default:
            return false;
    }
}

}

推荐答案

我觉得这是在支持库SearchView.java类的错误，你可以看到它是在一个共同的实现文件使用View.OnLayoutChangeListener：

I think this is a bug in SearchView.java class in support library, you can see that it is using View.OnLayoutChangeListener in a common implementation file:

<一个href="https://android.googlesource.com/platform/frameworks/support.git/+/android-4.3_r1/v7/appcompat/src/android/support/v7/widget/SearchView.java">https://android.googlesource.com/platform/frameworks/support.git/+/android-4.3_r1/v7/appcompat/src/android/support/v7/widget/SearchView.java

这使得类加载器来试装View.OnLayoutChangeListener这是因为提供API级别11 - 即使这* SDK11方法甚至没有叫。我想这个方法addOnLayoutChangeListenerToDropDownAnchorSDK11应该被移动到外部的Java类，并仅用于设备的API为> = 11。

this makes class loader to try loading View.OnLayoutChangeListener which is available since api level 11 - even if this *SDK11 method is not even called. I suppose this method addOnLayoutChangeListenerToDropDownAnchorSDK11 should be moved to external java class and used only if device API is >= 11.

您可以重现这个bug复制此code到自己的活动：

You can reproduce this bug copying this code to your own activity:

private void addOnLayoutChangeListenerToDropDownAnchorSDK11() {
    new View.OnLayoutChangeListener() {
        @Override
        public void onLayoutChange(View v, int left, int top, int right, int bottom,
                                   int oldLeft, int oldTop, int oldRight, int oldBottom) {
        }
    };
}

public void onCreate(...) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            addOnLayoutChangeListenerToDropDownAnchorSDK11();
        }
}

下面

是logcat的打印：

below is what logcat prints:

08-31 22:50:33.030: INFO/dalvikvm(20753): Failed resolving Lcom/example/ActionBarTester/MyActivity$1; interface 813 'Landroid/view/View$OnLayoutChangeListener;'
08-31 22:50:33.030: WARN/dalvikvm(20753): Link of class 'Lcom/example/ActionBarTester/MyActivity$1;' failed
08-31 22:50:33.030: ERROR/dalvikvm(20753): Could not find class 'com.example.ActionBarTester.MyActivity$1', referenced from method com.example.ActionBarTester.MyActivity.addOnLayoutChangeListenerToDropDownAnchorSDK11
08-31 22:50:33.030: WARN/dalvikvm(20753): VFY: unable to resolve new-instance 903 (Lcom/example/ActionBarTester/MyActivity$1;) in Lcom/example/ActionBarTester/MyActivity;
08-31 22:50:33.030: DEBUG/dalvikvm(20753): VFY: replacing opcode 0x22 at 0x0000
08-31 22:50:33.030: DEBUG/dalvikvm(20753): VFY: dead code 0x0002-0005 in Lcom/example/ActionBarTester/MyActivity;.addOnLayoutChangeListenerToDropDownAnchorSDK11 ()V

我不知道，如果这虫子居然引起任何问题，在我的情况下搜索查看适用于API级别10，也高于测试使我的活动工作。也许我失去了一些东西。

I am not sure if this bug Is actually causing any problems, in my case SearchView works on API Level 10, also above tests allow my activity to work. Maybe I am missing something here.

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