1

我知道我可以手动设置它，但我应该可以使用数组，但我一直在崩溃，我认为这是一个简单的问题，我只是找不到问题，一旦按下按钮就会发生崩溃：

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

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.eric.theworks.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.ST" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="Numbers"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.NUMBERS" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="Settings"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.SETTINGS" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="InternalStore"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.INTERNALSTORE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="Reading"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.READING" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    <activity
        android:name="Menu"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

</manifest>

`公共类菜单扩展活动实现OnClickListener {

String activities[] = { "ST", "SETTINGS", "INTERNALSTORE", "READING" };

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.menu);
}

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
    int id = v.getId();
    for (int i = 0; i < activities.length; i++) {
        if (id == getResources().getIdentifier("b" + i, "id",
                "com.eric.theworks")) {
            Intent intent = new Intent("com.eric.theworks." + activities[i]);
            startActivity(intent);
        }
    }

}

}`

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

<Button
    android:id="@+id/b0"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Passing Data" 
    android:onClick="onClick"/>

<Button
    android:id="@+id/b1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Settings"
    android:onClick="onClick" />

<Button
    android:id="@+id/b2"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Internal Storage"
    android:onClick="onClick" />

<Button
    android:id="@+id/b3"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Reading Data"
    android:onClick="onClick" />

</LinearLayout>

好的日志猫：

03-17 05:36:20.542: D/libEGL(20653): loaded /vendor/lib/egl/libEGL_POWERVR_SGX540_120.so
03-17 05:36:20.550: D/libEGL(20653): loaded /vendor/lib/egl/libGLESv1_CM_POWERVR_SGX540_120.so
03-17 05:36:20.558: D/libEGL(20653): loaded /vendor/lib/egl/libGLESv2_POWERVR_SGX540_120.so
03-17 05:36:20.652: D/OpenGLRenderer(20653): Enabling debug mode 0
03-17 05:36:23.987: D/AndroidRuntime(20653): Shutting down VM
03-17 05:36:23.987: W/dalvikvm(20653): threadid=1: thread exiting with uncaught exception (group=0x40fb4300)
03-17 05:36:23.995: E/AndroidRuntime(20653): FATAL EXCEPTION: main
03-17 05:36:23.995: E/AndroidRuntime(20653): java.lang.IllegalStateException: Could not execute method of the activity
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.view.View$1.onClick(View.java:3591)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.view.View.performClick(View.java:4084)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.view.View$PerformClick.run(View.java:16966)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.os.Handler.handleCallback(Handler.java:615)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.os.Handler.dispatchMessage(Handler.java:92)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.os.Looper.loop(Looper.java:137)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.ActivityThread.main(ActivityThread.java:4745)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at java.lang.reflect.Method.invokeNative(Native Method)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at java.lang.reflect.Method.invoke(Method.java:511)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at dalvik.system.NativeStart.main(Native Method)
03-17 05:36:23.995: E/AndroidRuntime(20653): Caused by: java.lang.reflect.InvocationTargetException
03-17 05:36:23.995: E/AndroidRuntime(20653):    at java.lang.reflect.Method.invokeNative(Native Method)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at java.lang.reflect.Method.invoke(Method.java:511)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.view.View$1.onClick(View.java:3586)
03-17 05:36:23.995: E/AndroidRuntime(20653):    ... 11 more
03-17 05:36:23.995: E/AndroidRuntime(20653): Caused by: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.eric.theworks.ST }
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1545)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1416)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.Activity.startActivityForResult(Activity.java:3351)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.Activity.startActivityForResult(Activity.java:3312)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.Activity.startActivity(Activity.java:3522)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at android.app.Activity.startActivity(Activity.java:3490)
03-17 05:36:23.995: E/AndroidRuntime(20653):    at com.eric.theworks.Menu.onClick(Menu.java:28)
03-17 05:36:23.995: E/AndroidRuntime(20653):    ... 14 more
03-17 05:36:25.519: I/Process(20653): Sending signal. PID: 20653 SIG: 9
4

2 回答 2

1

我只能在没有看到 logcat 的情况下猜测，但您得到的异常可能是ActivityNotFoundException. 在您的清单中，您Activities对名称以 开头的操作做出响应"android.intent.action"，而在代码中您将启动名称以 开头的操作"com.eric.theworks."。我建议您将清单中描述的操作更改为"com.eric.theworks."变体，因为对自定义操作使用默认的 Android 命名并不是一件好事。希望这能解决您的问题。

于 2013-03-17T09:22:12.253 回答
0

很可能是您活动中的代码，而不是清单或布局。检查您的 logcat 日志，并显示使您的应用程序崩溃的异常，并为您提供错误信息。

于 2013-03-17T09:17:03.617 回答