java - Android 2.2 Webview 导致 OpenGL ES API 没有当前上下文(每个线程记录一次)

Question

首先，感谢您阅读这篇文章并提前帮助我解决这个问题。我目前正在为 android 创建一个 webshel​​l 以在其中运行 Webapps，它在 Android 2.2 SDK 上运行。

当我调试我的应用程序时出现问题(这是通过 USB 在 Android 4.0 手机上完成的):

09-28 11:32:32.415: D/dalvikvm(25629): Debugger has detached; object registry had 576 entries
09-28 11:32:36.355: W/ActivityThread(25764): Application com.android_api8_webshell is waiting for the debugger on port 8100...
09-28 11:32:36.375: I/System.out(25764): Sending WAIT chunk
09-28 11:32:36.380: I/dalvikvm(25764): Debugger is active
09-28 11:32:36.575: I/System.out(25764): Debugger has connected
09-28 11:32:36.575: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:36.775: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:36.975: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:37.175: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:37.375: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:37.575: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:37.780: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:37.980: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:38.180: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:38.385: I/System.out(25764): waiting for debugger to settle...
09-28 11:32:38.585: I/System.out(25764): debugger has settled (1497)
09-28 11:32:38.710: I/webclipboard(25764): clipservice: android.sec.clipboard.ClipboardExManager@41a184d8
09-28 11:32:38.765: V/StringUrl(25764): String: http://www.cidesign.nl
09-28 11:32:38.785: D/WML_SISO(25764): InitPasteboardJni
09-28 11:32:38.795: V/(25764): NotificationPresenterImpl::setSettingsValue 0 
09-28 11:32:38.795: V/(25764): NotificationPresenterImpl::setSettingsValue 0 
09-28 11:32:38.800: D/webkit(25764): Firewall not null
09-28 11:32:38.800: D/webkit(25764): euler: isUrlBlocked = false
09-28 11:32:38.930: D/CLIPBOARD(25764): Hide Clipboard dialog at Starting input: finished by someone else... !
09-28 11:32:42.440: I/GATE(25764): <GATE-M>DEV_ACTION_COMPLETED</GATE-M>
09-28 11:32:42.455: E/libEGL(25764): call to OpenGL ES API with no current context (logged once per thread)
09-28 11:32:42.455: D/ShaderProgram(25764): couldn't load the vertex shader!
09-28 11:32:42.455: E/libEGL(25764): call to OpenGL ES API with no current context (logged once per thread)
09-28 11:32:42.455: D/ShaderProgram(25764): couldn't load the vertex shader!
09-28 11:32:42.455: E/libEGL(25764): call to OpenGL ES API with no current context (logged once per thread)
09-28 11:32:42.455: D/ShaderProgram(25764): couldn't load the vertex shader!
09-28 11:32:42.455: E/libEGL(25764): call to OpenGL ES API with no current context (logged once per thread)
09-28 11:32:42.455: D/ShaderProgram(25764): couldn't load the vertex shader!
09-28 11:32:42.455: E/libEGL(25764): call to OpenGL ES API with no current context (logged once per thread)
09-28 11:32:42.455: D/ShaderProgram(25764): couldn't load the vertex shader!

这是我在主类中的代码:

package com.android_api8_webshell;

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.webkit.WebView;
import android.webkit.WebSettings;

public class Main extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        WebView myWebView = (WebView) findViewById(R.id.webView1);

        WebSettings webSettings = myWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);

        Log.v("StringUrl", "String: " + getResources().getText(R.string.url));

        myWebView.loadUrl(getResources().getText(R.string.url).toString());
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }  
}

最后但同样重要的是，我运行的 xml:

<resources>
    <string name="title_activity_main">Main</string>
    <string name="url">http://www.cidesign.nl</string>
    <string name="app_name">Android_API8_WebShell</string>
    <string name="menu_settings">Settings</string>
</resources>

我知道这个配置对其他人有帮助:

<application android:hardwareAccelerated="true" ...>

然而，这是针对 2.3.3 以上的 SDK，我运行的 SDK 不支持此功能。

我真的希望你能帮我解决这件事。

提前致谢

大卫

Answer 1

要获取 android:hardwareAccelerated 属性并仍然支持 API 8 (2.2)，请将 targetSdkVersion 设置为 11 但保留 minSdkVersion 原样:

<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="11" />
<application android:hardwareAccelerated="true" ...

在 API 11 之前的设备上运行时，hardwareAccelerated 将被忽略。