我正在尝试创建一个在启动时运行的应用程序。这是一个简单的程序,用于显示我在打开我的 android 设备时想要显示的文本。到目前为止,这就是我所拥有的:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mycompany.helloworld"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="11" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".MainActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.mycompany.mybirthday.StartMyActivityAtBootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
</application>
</manifest>
MainActivity.java
package com.mycompany.mybirthday;
import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import java.util.*;
public class MainActivity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Do stuff
}
}
StartMyActivityAtBootReceiver.java
package com.mycompany.mybirthday;
import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;
import java.util.*;
import android.content.*;
public class StartMyActivityAtBootReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Intent activityIntent = new Intent(context, MainActivity.class);
context.startActivity(activityIntent);
}
}
当我启动我的机器人时,我收到一条消息“不幸的是,我的生日停止了”。我究竟做错了什么?