android java.lang.IllegalStateException当我想创建一个新活动时

时间：2012-07-07 19:55:27

标签： android android-intent android-emulator

我有下面列出的例外，我添加了代码，在创建这个问题之前我google了这个问题，但没有找到解决方案，我找不到问题或任何帮助在哦的帖子上有相同的错误所以我我不见了？

Emulator android version 2.2 api level 8

问题在于：

07-07 19:40:20.782: E/AndroidRuntime(588): FATAL EXCEPTION: main
07-07 19:40:20.782: E/AndroidRuntime(588): java.lang.IllegalStateException: Could not execute method of the activity
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.view.View$1.onClick(View.java:2072)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.view.View.performClick(View.java:2408)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.view.View$PerformClick.run(View.java:8816)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.os.Handler.handleCallback(Handler.java:587)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.os.Handler.dispatchMessage(Handler.java:92)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.os.Looper.loop(Looper.java:123)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.app.ActivityThread.main(ActivityThread.java:4627)
07-07 19:40:20.782: E/AndroidRuntime(588):  at java.lang.reflect.Method.invokeNative(Native Method)
07-07 19:40:20.782: E/AndroidRuntime(588):  at java.lang.reflect.Method.invoke(Method.java:521)
07-07 19:40:20.782: E/AndroidRuntime(588):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-07 19:40:20.782: E/AndroidRuntime(588):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
07-07 19:40:20.782: E/AndroidRuntime(588):  at dalvik.system.NativeStart.main(Native Method)
07-07 19:40:20.782: E/AndroidRuntime(588): Caused by: java.lang.reflect.InvocationTargetException
07-07 19:40:20.782: E/AndroidRuntime(588):  at app.hearts.multiplayer.MainActivity.onPlayClick(MainActivity.java:24)
07-07 19:40:20.782: E/AndroidRuntime(588):  at java.lang.reflect.Method.invokeNative(Native Method)
07-07 19:40:20.782: E/AndroidRuntime(588):  at java.lang.reflect.Method.invoke(Method.java:521)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.view.View$1.onClick(View.java:2067)
07-07 19:40:20.782: E/AndroidRuntime(588):  ... 11 more
07-07 19:40:20.782: E/AndroidRuntime(588): Caused by: java.lang.SecurityException: Permission Denial: starting Intent { cmp=app.hearts.multiplayer/.GameActivity } from ProcessRecord{44fc09f0 588:app.hearts.multiplayer/10032} (pid=588, uid=10032) requires android.permission.ACCESS_NETWORK_STATE
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.os.Parcel.readException(Parcel.java:1247)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.os.Parcel.readException(Parcel.java:1235)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1298)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1373)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.app.Activity.startActivityForResult(Activity.java:2817)
07-07 19:40:20.782: E/AndroidRuntime(588):  at android.app.Activity.startActivity(Activity.java:2923)
07-07 19:40:20.782: E/AndroidRuntime(588):  ... 15 more

MainActivity.java：

package app.hearts.multiplayer;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;    
import android.widget.EditText;

public class MainActivity extends Activity {

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



public void onPlayClick(View view)
{
    Intent gameIntent = new Intent(MainActivity.this, GameActivity.class);
    startActivity(gameIntent);
}
}

activity_main.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/LinearLayout2"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/background"
    android:gravity="right"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1.05"
        android:scaleType="fitXY"
        android:src="@drawable/hearts_hat" />

    <LinearLayout
        android:id="@+id/LinearLayout1"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="0.70"
        android:orientation="vertical"
        android:paddingRight="@dimen/padding_small"
        android:paddingTop="@dimen/padding_large" >


        <ImageButton
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="48dp"
            android:layout_weight="0.00"
            android:adjustViewBounds="true"
            android:background="@drawable/select_play"
            android:onClick="onPlayClick"
            android:clickable="true"
            android:paddingTop="@dimen/padding_medium" />

        <TableRow
            android:id="@+id/tableRow1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingBottom="@dimen/padding_large"
            android:paddingTop="@dimen/padding_large" >
        </TableRow>

        <ImageButton
            android:id="@+id/button2"
            android:layout_width="wrap_content"
            android:layout_height="48dp"
            android:layout_weight="0.00"
            android:background="@drawable/select_highscore"
            android:clickable="true"
            android:paddingTop="@dimen/padding_large" />
    </LinearLayout>

</LinearLayout>

清单文件：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="app.hearts.multiplayer"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

    <application
        android:icon="@drawable/hearts_icon"
        android:label="@string/app_name"
        android:permission="android.permission.ACCESS_NETWORK_STATE"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main"
            android:screenOrientation="landscape" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".GameActivity"
            android:label="@string/title_activity_game" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

GameActivity.java：

package app.hearts.multiplayer;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v4.app.NavUtils;

public class GameActivity extends Activity {

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

}

activity_game.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:padding="@dimen/padding_medium"
        android:text="@string/hello_world"
        tools:context=".GameActivity" />

</RelativeLayout>

1 个答案:

答案 0 :(得分：0)

从以下错误中获取：

07-07 19:40:20.782: E/AndroidRuntime(588): Caused by: java.lang.SecurityException: Permission Denial: starting Intent { cmp=app.hearts.multiplayer/.GameActivity } from ProcessRecord{44fc09f0 588:app.hearts.multiplayer/10032} (pid=588, uid=10032) requires android.permission.ACCESS_NETWORK_STATE

您似乎需要添加 ACCESS_NETWORK_STATE - 使用以下代码添加此权限，该代码应位于“application”标记之外：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example" android:versionCode="1" android:versionName="1.0" >

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <!-- more data goes here... -->
    </application>  

</manifest>

试一试。

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