单击ListActivity中的项目并打开MyBrowser Activity时，应用程序会被不幸地停止。我在LogCat中检查过它显示致命错误。无法找到解决方案。 其他活动在模拟器中运行良好，但在点击浏览器后，它显示致命异常。
LogCat
` --------- beginning of crash
01-04 21:26:13.013 2487-2487/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.dell.firstapp, PID: 2487
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.dell.firstapp/com.example.dell.firstapp.MyBrowser}: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x12
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x12
at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:572)
at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:6660)
at android.widget.LinearLayout$LayoutParams.<init>(LinearLayout.java:1864)
at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:1776)
at android.widget.LinearLayout.generateLayoutParams(LinearLayout.java:62)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:808)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:378)
at android.app.Activity.setContentView(Activity.java:2145)
at com.example.dell.firstapp.MyBrowser.onCreate(MyBrowser.java:22)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
布局文件
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout
android:weightSum="100"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/etURL"
android:layout_weight="20" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Go"
android:id="@+id/bGo"
android:layout_weight="80"
android:layout_marginRight="@+id/editText"/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:weightSum="8"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/bBack"
android:text="Go back page"
android:layout_weight="2"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/bFwd"
android:text="Go forward"
android:layout_weight="2"
/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/bRefresh"
android:text="Refresh page"
android:layout_weight="2"/>
<Button android:text="clear History"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/bHistory"
android:layout_weight="2"/>
</LinearLayout>
<WebView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/wvBrowser"></WebView>
</LinearLayout>
Android清单文件
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.dell.firstapp" >
<uses-sdk android:minSdkVersion="8"/>
<uses-permission android:name="android.permission.SET_WALLPAPER"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Splash"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".Starting"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.dell.firstapp.STARTING" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Menu"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.dell.firstapp.MENU" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Email"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.dell.firstapp.EMAIL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Camera" android:label="@string/app_name">
</activity>
<activity
android:name=".MyBrowser" android:label="@string/app_name">
</activity>
</application>
</manifest>
活动类
public class MyBrowser extends Activity implements View.OnClickListener{
EditText url;
WebView ourBrow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.simplebrowser);
WebView ourBrow=(WebView) findViewById(R.id.wvBrowser);
ourBrow.getSettings().setJavaScriptEnabled(true);
ourBrow.getSettings().setLoadWithOverviewMode(true);
ourBrow.getSettings().setUseWideViewPort(true);
ourBrow.setWebViewClient(new ourViewClient());
try {
ourBrow.loadUrl("http://www.google.com");
}catch (Exception e){
e.printStackTrace();
}
Button go=(Button) findViewById(R.id.bGo);
Button back=(Button) findViewById(R.id.bBack);
Button forward=(Button) findViewById(R.id.bFwd);
Button refresh=(Button) findViewById(R.id.bRefresh);
Button clearHistory=(Button) findViewById(R.id.bHistory);
url=(EditText) findViewById(R.id.etURL);
go.setOnClickListener(this);
back.setOnClickListener(this);
forward.setOnClickListener(this);
refresh.setOnClickListener(this);
clearHistory.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.bGo:
String theWebsite=url.getText().toString();
ourBrow.loadUrl(theWebsite);
//Hiding the keyboard after using an EditText
InputMethodManager imm=(InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(url.getWindowToken(),0);
break;
case R.id.bBack:
if(ourBrow.canGoBack())
ourBrow.goBack();
break;
case R.id.bFwd:
if(ourBrow.canGoForward())
ourBrow.goForward();
break;
case R.id.bRefresh:
ourBrow.reload();
break;
case R.id.bHistory:
ourBrow.clearHistory();
break;
}
}
}
编辑：新例外
01-04 23:37:11.766 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:11.864 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:12.000 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:16.058 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:16.122 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:16.202 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:16.373 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:16.471 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:16.585 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:19.396 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:19.496 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:19.574 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:19.736 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:19.802 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:19.916 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:20.366 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:20.468 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:20.549 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:20.735 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:20.798 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:20.879 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:21.065 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:21.183 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:21.261 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:21.456 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:21.572 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:21.685 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:21.872 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:21.985 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:22.065 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:22.232 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:22.337 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:22.422 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:23.628 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:23.737 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:23.817 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:24.002 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
01-04 23:37:24.053 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000b44
01-04 23:37:24.136 2227-2243/? E/eglCodecCommon﹕ glUtilsParamSize: unknow param 0x00000bd0
01-04 23:37:24.337 2227-2243/? E/eglCodecCommon﹕ **** ERROR unknown type 0x73000f (glSizeof,72)
答案 0 :(得分：0)
您的错误是
UnsupportedOperationException: Can't convert to dimension
这是由以下行（针对您的Go按钮）引起的，因为Android无法将@+id/editText转换为维度：
android:layout_marginRight="@+id/editText"
android:layout_marginRight期望维度由数字或维度资源提供，请参阅下面的示例
// number
android:layout_marginRight="16dp"
// dimension resource
android:layout_marginRight="@dimen/margin_size"