android – 如何在更改方向时保持ViewFlipper中的当前视图

2024-04-04 10:14:47

有没有什么好方法可以在ViewFlipper中保持当前视图,而sill能够加载layout-port文件夹？也许使用onRetainNonConfigurationInstance()？如果是这样,我将如何实施呢？我尝试了一些推杆解决方案：

android:configChanges="orientation|keyboardHidden"

在清单中.

问题是Android然后忽略我的布局端口文件夹,它重新排列输入字段和按钮.

–Update–

这是我添加了hooked82代码的代码.我添加了抛出错误的部分：

public class AtriumMain extends Activity {
    Login login = new Login();

    String username, password;
    EditText user, pass, serverName, propertyID;

    Context context;
    CharSequence text;
    int duration, settingsClicks, doneClicks;

    final int WRONG_SETTINGS_DIALOG = 0;
    final int SET_SETTINGS_DIALOG = 1;

    LayoutInflater inflater;

    View failed_login, wrong_settings, card1, card2, set_settings;
    Button loginButton, settingsButton, doneButton, checkServer, yes_button, no_button, ok_button;
    ImageView failed_login_image, wrong_settings_image, set_settings_image;
    TextView failed_login_errorText, wrong_settings_errorText, set_settings_errorText;
    Boolean correctSettings;
    ViewFlipper flipper;
    Resources res;
    Application app;
    OutputStreamWriter settings_outstream;
    InputStream settings_instream;
    Toast failed_login_errorMessage;
    Dialog wrong_settings_errorMessage, set_settings_errorMessage;
    Builder test;


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (savedInstanceState != null)
        {
            int flipperPosition = savedInstanceState.getInt("CARD_NUMBER");
            flipper.setDisplayedChild(flipperPosition);
        }

        setContentView(R.layout.login);

        context = getApplicationContext();
        res = getResources();
        app = ((AtriumApplication)this.getApplication());

        inflater = getLayoutInflater();
        failed_login = inflater.inflate(R.layout.failed_login, (ViewGroup) findViewById(R.id.failed_login));
        wrong_settings = inflater.inflate(R.layout.wrong_settings, (ViewGroup) findViewById(R.id.wrong_settings));
        set_settings = inflater.inflate(R.layout.set_settings, (ViewGroup) findViewById(R.id.set_settings));

        loginButton = (Button)findViewById(R.id.login);
        settingsButton = (Button)findViewById(R.id.settings);
        doneButton = (Button)findViewById(R.id.done);
        checkServer = (Button)findViewById(R.id.check_server);

        //((Button)findViewById(R.id.login)).setOnClickListener(mAddListener);

        user = (EditText)findViewById(R.id.username);
        pass = (EditText)findViewById(R.id.password);

        serverName = (EditText)findViewById(R.id.serverName);
        propertyID = (EditText)findViewById(R.id.propertyId);

        flipper=(ViewFlipper)findViewById(R.id.cards);

        failed_login_image = (ImageView) failed_login.findViewById(R.id.failed_login_image);
        failed_login_image.setImageResource(R.drawable.warning2);

        failed_login_errorText = (TextView) failed_login.findViewById(R.id.text);
        failed_login_errorText.setText(res.getString(R.string.failed_login));

        failed_login_errorMessage = new Toast(context);
        failed_login_errorMessage.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
        failed_login_errorMessage.setDuration(Toast.LENGTH_LONG);
        failed_login_errorMessage.setView(failed_login);

        loginButton.setOnClickListener(loginListener);
        settingsButton.setOnClickListener(settingsListener);
        doneButton.setOnClickListener(doneListener);
        checkServer.setOnClickListener(checkServerListener);

        settingsClicks = 0;
        doneClicks = 0;

        if ((((AtriumApplication)app).getCorrectSettings()))
        {
            doneButton.getBackground().setColorFilter(new LightingColorFilter(0xFF0000FF, 0xFF000010));
        }
        else
        {
            doneButton.getBackground().setColorFilter(new LightingColorFilter(0xFFFF1010, 0xFFAA0000));
            showDialog(SET_SETTINGS_DIALOG);
        }
    }

    @Override
    public void onSaveInstanceState(Bundle savedInstanceState)
    {
        int position = flipper.getDisplayedChild();
        savedInstanceState.putInt("CARD_NUMBER", position);
    }

这是发生错误的地方的Logcat输出：

08-20 11:23:52.730: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.740: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.760: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.770: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.790: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.810: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.820: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.830: INFO/SurfaceFlinger(223): id=6705 Removed Starting com.szymon.atrium idx=4 Map Size=5
08-20 11:23:52.830: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.830: INFO/SurfaceFlinger(223): id=6705 Removed Starting com.szymon.atrium idx=-2 Map Size=5
08-20 11:23:52.840: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.860: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.870: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:52.890: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:23:54.010: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:23:54.010: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:23:54.010: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-4ms arg1=936 }
08-20 11:23:54.030: DEBUG/HierarchicalStateMachine(293): handleMessage: X
08-20 11:23:57.030: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:23:57.030: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:23:57.030: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-4ms arg1=936 }
08-20 11:23:57.050: DEBUG/HierarchicalStateMachine(293): handleMessage: X
08-20 11:23:57.480: DEBUG/dalvikvm(30999): GC_EXPLICIT freed 1181K, 30% free 14894K/21255K, paused 3ms+3ms
08-20 11:24:00.000: DEBUG/KeyguardUpdateMonitor(293): received broadcast android.intent.action.TIME_TICK
08-20 11:24:00.000: DEBUG/KeyguardUpdateMonitor(293): handleTimeUpdate
08-20 11:24:00.050: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:24:00.050: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:24:00.050: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-3ms arg1=936 }
08-20 11:24:00.070: DEBUG/HierarchicalStateMachine(293): handleMessage: X
08-20 11:24:01.070: INFO/OrientationDebug(293): [pwm] in MyOrientationListener.onOrientationChanged() rotation=1  mFancyRotationAnimation=0   now call mWindowManager.setRotation()
08-20 11:24:01.070: INFO/OrientationDebug(293): [wms] in setRotation() rotation=1 alwaysSendConfiguration=false animFlags=0
08-20 11:24:01.070: INFO/OrientationDebug(293): [wms] in setRotation() now call setRotationUnchecked()
08-20 11:24:01.070: INFO/OrientationDebug(293): [pwm] rotationForOrientationLw(), orientation=-1 lastRotation=2 userRotation=3
08-20 11:24:01.070: INFO/OrientationDebug(293): [pwm] useSensorForOrientationLp(), return true #2
08-20 11:24:01.070: INFO/OrientationDebug(293): [pwm] in rotationForOrientationLw(), return #13
08-20 11:24:01.070: VERBOSE/WindowOrientationListener(293): > Orientation changed!  rotation=1
08-20 11:24:01.070: VERBOSE/WindowOrientationListener(293): Result: rotation=1, confidence=[0.0, 1.0, 0.0, 0.0], timeDeltaMS=54.104
08-20 11:24:01.240: INFO/SurfaceFlinger(223): id=6709(1638) createSurface 0x14c93c for pid 0 (1280x800),2 flag=0, FreezeSurface
08-20 11:24:01.280: INFO/OrientationDebug(293): [wms] in setRotationUncheckedLocked(), Setting rotation to 1   The rotation is came from PWM.rotationForOrientationLw()
08-20 11:24:01.280: DEBUG/SurfaceFlinger(223): mCurrentState.orientation:1 mDrawingState.orientation:2
08-20 11:24:01.280: DEBUG/TvoutSystem(293): bool android::TvoutSystem::TvoutSetRotation(int)
08-20 11:24:01.280: DEBUG/TvoutSystem(293): bool android::TvoutSystem::TvoutGetCableStatus()
08-20 11:24:01.280: DEBUG/TvoutService(230): virtual bool android::TvoutService::TvoutGetCableStatus()
08-20 11:24:01.280: DEBUG/TvoutService(Java)(293): TvoutGetCableStatus() : false
08-20 11:24:01.280: INFO/WindowManager(293): Setting rotation to 1, animFlags=0
08-20 11:24:01.280: INFO/ActivityManager(293): Config changed: { scale=1.0 imsi=0/0 loc=en_US touch=3 keys=1/1/2 nav=1/2 orien=P layout=0x10000014 uiMode=0x11 seq=291 FlipFont=0}
08-20 11:24:01.290: VERBOSE/WindowManager(293): Preventing status bar from hiding by policy
08-20 11:24:01.320: VERBOSE/WindowOrientationListener(293): > Orientation changed!  rotation=1
08-20 11:24:01.320: VERBOSE/WindowOrientationListener(293): Result: rotation=1, confidence=[0.0, 1.0, 0.0, 0.0], timeDeltaMS=54.104
08-20 11:24:01.320: INFO/WindowManager(293): Putting input method here!
08-20 11:24:01.320: DEBUG/WindowManager(293):     w.mAttrs.token=ActivityRecord{41811888 com.szymon.atrium/.AtriumMain}
08-20 11:24:01.320: DEBUG/WindowManager(293):     w.mToken=AppWindowToken{427877c0  token=ActivityRecord{41811888 com.szymon.atrium/.AtriumMain}}
08-20 11:24:01.320: DEBUG/WindowManager(293):     token=AppWindowToken{427877c0 token=ActivityRecord{41811888 com.szymon.atrium/.AtriumMain}}
08-20 11:24:01.320: INFO/SurfaceFlinger(223): id=6707 Removed com.szymon.atrium/com.szymon.atrium.AtriumMain idx=2 Map Size=5
08-20 11:24:01.320: INFO/WindowManager(293): Placing input method @5
08-20 11:24:01.330: INFO/SurfaceFlinger(223): id=6707 Removed com.szymon.atrium/com.szymon.atrium.AtriumMain idx=-2 Map Size=5
08-20 11:24:01.330: ERROR/TelephonyManager(22015): Hidden constructor called more than once per process!
08-20 11:24:01.330: INFO/WindowManager(293): Placing input method @1
08-20 11:24:01.340: DEBUG/MiniModeAppsPanel(430): ACTION_CONFIGURATION_CHANGED
08-20 11:24:02.140: VERBOSE/WindowOrientationListener(293): rotation : 1   Angle: 90   tilt: 2
08-20 11:24:03.070: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:24:03.070: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:24:03.070: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-4ms arg1=936 }
08-20 11:24:03.070: DEBUG/HierarchicalStateMachine(293): handleMessage: X
08-20 11:24:03.070: WARN/WindowManager(293): Window freeze timeout expired.
08-20 11:24:03.070: WARN/WindowManager(293): Force clearing orientation change: Window{407d1208 InputMethod paused=false}
08-20 11:24:03.390: WARN/InputConnectionWrapper.ICC(439): Timed out waiting on IInputContextCallback
08-20 11:24:03.420: WARN/Resources(439): Converting to boolean: TypedValue{t=0x3/d=0x15 "true" a=-1}
08-20 11:24:03.430: WARN/Resources(439): Converting to boolean: TypedValue{t=0x3/d=0x15 "true" a=-1}
08-20 11:24:03.590: VERBOSE/WindowOrientationListener(293): rotation : 1   Angle: 90   tilt: 0
08-20 11:24:05.070: VERBOSE/WindowOrientationListener(293): rotation : 1   Angle: 90   tilt: -2
08-20 11:24:05.430: WARN/InputConnectionWrapper.ICC(439): Timed out waiting on IInputContextCallback
08-20 11:24:05.450: ERROR/TabletStatusBar(430): closing mini mode apps panel
08-20 11:24:05.490: DEBUG/dalvikvm(439): GC_FOR_ALLOC freed 1756K, 38% free 10279K/16391K, paused 27ms
08-20 11:24:06.080: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:24:06.080: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:24:06.080: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-4ms arg1=936 }
08-20 11:24:06.090: DEBUG/HierarchicalStateMachine(293): handleMessage: X
08-20 11:24:06.290: WARN/WindowManager(293): App freeze timeout expired.
08-20 11:24:06.290: WARN/WindowManager(293): Force clearing freeze: AppWindowToken{427877c0 token=ActivityRecord{41811888 com.szymon.atrium/.AtriumMain}}
08-20 11:24:06.300: INFO/SurfaceFlinger(223): id=6710(1639) createSurface for pid 0 (800x2560),-1 flag=131072, BlackSurface
08-20 11:24:06.300: INFO/SurfaceFlinger(223): id=6711(1640) createSurface for pid 0 (1600x1280),-1 flag=131072, BlackSurface
08-20 11:24:06.300: INFO/SurfaceFlinger(223): id=6712(1641) createSurface for pid 0 (800x2560),-1 flag=131072, BlackSurface
08-20 11:24:06.310: INFO/SurfaceFlinger(223): id=6713(1642) createSurface for pid 0 (1600x1280),-1 flag=131072, BlackSurface
08-20 11:24:06.370: DEBUG/dalvikvm(15392): GC_CONCURRENT freed 458K, 37% free 7282K/11399K, paused 7ms+8ms
08-20 11:24:06.370: DEBUG/dalvikvm(20484): GC_EXPLICIT freed 9K, 5% free 6215K/6531K, paused 3ms+2ms
08-20 11:24:06.560: VERBOSE/WindowOrientationListener(293): rotation : 1   Angle: 90   tilt: -3
08-20 11:24:06.740: INFO/SurfaceFlinger(223): id=6709 Removed FreezeSurface idx=9 Map Size=4
08-20 11:24:06.740: INFO/SurfaceFlinger(223): id=6710 Removed BlackSurface idx=5 Map Size=4
08-20 11:24:06.740: INFO/SurfaceFlinger(223): id=6711 Removed BlackSurface idx=5 Map Size=4
08-20 11:24:06.750: INFO/SurfaceFlinger(223): id=6712 Removed BlackSurface idx=5 Map Size=4
08-20 11:24:06.750: INFO/SurfaceFlinger(223): id=6712 Removed BlackSurface idx=-2 Map Size=4
08-20 11:24:06.750: INFO/SurfaceFlinger(223): id=6711 Removed BlackSurface idx=-2 Map Size=4
08-20 11:24:06.750: INFO/SurfaceFlinger(223): id=6710 Removed BlackSurface idx=-2 Map Size=4
08-20 11:24:06.750: INFO/SurfaceFlinger(223): id=6709 Removed FreezeSurface idx=-2 Map Size=4
08-20 11:24:06.750: INFO/SurfaceFlinger(223): id=6713 Removed BlackSurface idx=5 Map Size=4
08-20 11:24:06.750: INFO/OrientationDebug(293): [pwm] rotationForOrientationLw(), orientation=-1 lastRotation=1 userRotation=3
08-20 11:24:06.750: INFO/OrientationDebug(293): [pwm] useSensorForOrientationLp(), return true #2
08-20 11:24:06.750: INFO/OrientationDebug(293): [pwm] in rotationForOrientationLw(), return #13
08-20 11:24:06.760: INFO/SurfaceFlinger(223): id=6713 Removed BlackSurface idx=-2 Map Size=4
08-20 11:24:08.030: VERBOSE/WindowOrientationListener(293): rotation : 1   Angle: 90   tilt: -3
08-20 11:24:08.460: DEBUG/dalvikvm(293): GC_EXPLICIT freed 1140K, 16% free 116574K/137223K, paused 13ms+19ms
08-20 11:24:09.090: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:24:09.090: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:24:09.090: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-4ms arg1=936 }
08-20 11:24:09.110: DEBUG/HierarchicalStateMachine(293): handleMessage: X
08-20 11:24:09.500: VERBOSE/WindowOrientationListener(293): rotation : 1   Angle: 91   tilt: 2
08-20 11:24:11.380: DEBUG/dalvikvm(20510): GC_EXPLICIT freed 20K, 5% free 6220K/6531K, paused 2ms+9ms
08-20 11:24:12.120: DEBUG/HierarchicalStateMachine(293): handleMessage: E msg.what=83
08-20 11:24:12.120: DEBUG/HierarchicalStateMachine(293): processMsg: ConnectedState
08-20 11:24:12.120: DEBUG/WifiStateMachine(293): ConnectedState{ what=83 when=-4ms arg1=936 }
08-20 11:24:12.130: DEBUG/HierarchicalStateMachine(293): handleMessage: X

我希望这有帮助.

解决方法:

尝试通过覆盖onSaveInstanceState来保存屏幕方向更改时在ViewFlipper中保存的选项卡

@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
    int position = flipper.getDisplayedChild();
    savedInstanceState.putInt("TAB_NUMBER", position);
}

然后在你的onCreate中,尝试以下方法

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (savedInstanceState != null) {
        int flipperPosition = savedInstanceState.getInt("TAB_NUMBER");
        flipper.setDisplayedChild(flipperPosition);
    }
}

确保只在初始化了鳍状肢之后才在鳍状肢上调用setDisplayedChild()方法,例如,通过执行某些操作

flipper =(ViewFlipper)findViewById(R.id.flipper);

在你的onCreate()方法中.不这样做可能会导致崩溃.

码农公寓

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