For some reason whenever I (try to) start my app the phone decides to launch system settings instead of my "main activity". And yes, I am referring to the "Android system settings", and not something from my app.

这只出现在我的电话上,我相信,这很可能与我的用人刚刚打开了系统环境这一事实有关,当时我决定用新版本从Eclipse重新发射。

It is possible to start the app from within Eclipse, but when I navigate back from the app it returns to the system settings rather than the home screen, as if the settings activity was started first and then my activity. If I then start the app from the phone all I get is system settings yet again.

当时,我听到了世界展望组织对特定卢爱阵列的反应,当我开始使用一种对称的URL,我取得的结果与我从Eclipse开始,而是回到我的环境一样。

I have tried googling for this problem, and all I could find was something about Android saving state when an app gets killed, but without any information on how to reset this state. I have tried uninstalling the app, killing system settings, rebooting the phone, reinstalling, clearing application data.. no luck..

对我的主要活动从清单中界定,这符合我的价值。

<activity android:name=".HomeActivity" android:label="@string/app_name" android:screenOrientation="portrait" android:clearTaskOnLaunch="true" android:launchMode="singleTop">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
    <intent-filter>
        <action android:name="android.intent.action.VIEW"></action>
        <category android:name="android.intent.category.DEFAULT"></category>
        <category android:name="android.intent.category.BROWSABLE"></category>
        <data android:pathPrefix="/isak-web-mobile/smart/" android:scheme="http" android:host="*"></data>
    </intent-filter>
 </activity>

这里,从我试图开始我,就没有任何情况。

I/ActivityManager( 1301): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=se.opencare.isak/.HomeActivity }

当我从Eclipse发射时,我也照此行(如预期的),

I/ActivityManager( 1301): Start proc se.opencare.isak for activity se.opencare.isak/.HomeActivity: pid=23068 uid=10163 gids={3003, 1007, 1015}

如果电话是HTCZ, 运行2.2.1。

Currently, this is my HomeActivity,

public class HomeActivity extends Activity {
    public static final String TAG = "HomeActivity";

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        Log.d(TAG, "onActivityResult(" + requestCode + ", " + resultCode + ", " + data + ")");
        super.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.d(TAG, "onCreate(" + savedInstanceState + ")");
        super.onCreate(savedInstanceState);
    }

    @Override
    protected void onDestroy() {
        Log.d(TAG, "onDestroy()");
        super.onDestroy();
    }

    @Override
    protected void onPause() {
        Log.d(TAG, "onPause()");
        super.onPause();
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        Log.d(TAG, "onPostCreate(" + savedInstanceState + ")");
        super.onPostCreate(savedInstanceState);
    }

    @Override
    protected void onPostResume() {
        Log.d(TAG, "onPostResume()");
        super.onPostResume();
    }

    @Override
    protected void onRestart() {
        Log.d(TAG, "onRestart()");
        super.onRestart();
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        Log.d(TAG, "onRestoreInstanceState(" + savedInstanceState + ")");
        super.onRestoreInstanceState(savedInstanceState);
    }

    @Override
    protected void onResume() {
        Log.d(TAG, "onResume()");
        super.onResume();
    }

    @Override
    protected void onStart() {
        Log.d(TAG, "onStart()");
        super.onStart();
    }

    @Override
    protected void onStop() {
        Log.d(TAG, "onStop()");
        super.onStop();
    }

    @Override
    protected void onUserLeaveHint() {
        Log.d(TAG, "onUserLeaveHint()");
        super.onUserLeaveHint();
    }
}

(以上)任何内容均不写给该记录。

在阅读了Blundell的回复之后,我尝试改变发射Mode/clearTaskOnLaunch的环境,结果如下:

• Situation A - I remove launchMode and clearTaskOnLaunch: same problem as before
• Situation B - I remove clearTaskOnLaunch and keeps launchMode="singleInstance": another problem
  • Open app - My HomeActivity is showing
  • Click on a button to open another activity within my app - it opens as it should
  • Click on the system back-button - it returns me to system settings
  • Click on the system back-button again - I am returned to my HomeActivity
  • Another click on the back-button brings me back to the Android home screen
• Situation C - I remove only launchMode and keeps clearTaskOnLaunch: same problem as before
• Sitatuion D - I remove clearTaskOnLaunch and set launchMode="singleInstance": same as situation B