我正在尝试为我的 android 应用程序制作一个偏好屏幕,但我完全失败了。我正在遵循本指南。当我尝试安装该应用程序时,我收到此错误消息,并且它不会在我的手机上安装该应用程序:
[2012-04-10 12:54:45 - AndroidCurrencyConverter] ------------------------------
[2012-04-10 12:54:45 - AndroidCurrencyConverter] Android Launch!
[2012-04-10 12:54:45 - AndroidCurrencyConverter] adb is running normally.
[2012-04-10 12:54:45 - AndroidCurrencyConverter] Performing ValutaConverter.namespace.AndroidValutaConverterActivity activity launch
[2012-04-10 12:54:45 - AndroidCurrencyConverter] Automatic Target Mode: using device '3134BC2BBCA800EC'
[2012-04-10 12:54:45 - AndroidCurrencyConverter] Uploading AndroidCurrencyConverter.apk onto device '3134BC2BBCA800EC'
[2012-04-10 12:54:46 - AndroidCurrencyConverter] Installing AndroidCurrencyConverter.apk...
[2012-04-10 12:54:49 - AndroidCurrencyConverter] Success!
[2012-04-10 12:54:49 - AndroidCurrencyConverter] Starting activity ValutaConverter.namespace.AndroidValutaConverterActivity on device 3134BC2BBCA800EC
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=ValutaConverter.namespace/.AndroidValutaConverterActivity }
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=ValutaConverter.namespace/.AndroidValutaConverterActivity } from null (pid=11486, uid=2000) requires android.permission.INTERNET
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at android.os.Parcel.readException(Parcel.java:1327)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at android.os.Parcel.readException(Parcel.java:1281)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1631)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at com.android.commands.am.Am.runStart(Am.java:433)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at com.android.commands.am.Am.run(Am.java:107)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at com.android.commands.am.Am.main(Am.java:80)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at com.android.internal.os.RuntimeInit.finishInit(Native Method)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:238)
[2012-04-10 12:54:52 - AndroidCurrencyConverter] ActivityManager: at dalvik.system.NativeStart.main(Native Method)
我从这段代码中了解到,当它尝试启动 Intent 时,它失败了,因为它需要 android.permission.INTERNET。但这已经在我的清单文件中定义了。
我让应用程序在某个时候工作,但我在我的活动中添加了一些东西,添加了另一个活动和一些 XML 文件。在此之后,它不会在手机上安装该应用程序。我补充的是:
在活动课上:
addPreferencesFromResource(R.xml.preferences);
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(Menu.NONE, 0, 0, "Show current settings");
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case 0:
startActivity(new Intent(this, ShowSettingsActivity.class));
return true;
}
return false;
}
如果您需要有关代码或类似内容的任何其他信息,我很乐意发布其中的一些信息。
帮助!