Java Code Examples for android.content.pm.activityinfo#LAUNCH_MULTIPLE

public static void onActivtyDestory(Activity activity) {
    synchronized (mRunningActivityList) {
        RunningActivityRecord value = mRunningActivityList.remove(activity);
        if (value != null) {
            ActivityInfo targetActivityInfo = value.targetActivityInfo;
            if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_MULTIPLE) {
                mRunningSingleStandardActivityList.remove(value.index);
            } else if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) {
                mRunningSingleTopActivityList.remove(value.index);
            } else if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) {
                mRunningSingleTaskActivityList.remove(value.index);
            } else if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
                mRunningSingleInstanceActivityList.remove(value.index);
            }
        }
    }
}
 

/**
 * 查询插件Activity对应的占位Activity
 *
 * @param pluginActivity 插件Activity全名，格式为：packageName/activityName
 * @return 返回插件Activity与占位Activity。如果pluginActivity是非标准启动模式，pluginActivity还没启动就返回null；
 * 如果pluginActivity是标准启动模式，始终返回{@link LaunchModeManager#MODE_STANDARD}
 */
@SuppressWarnings("unused")
@Nullable
public String queryProxyActivity(@NonNull String pluginActivity) {
    String proxyActivity = mSingleTaskPool.findProxyActivity(pluginActivity);
    if (null == proxyActivity) {
        proxyActivity = mSingleInstancePool.findProxyActivity(pluginActivity);
    }

    if (null == proxyActivity) {
        proxyActivity = mSingleTopPool.findProxyActivity(pluginActivity);
    }

    //标准启动模式
    if (null == proxyActivity) {
        String[] componentItems = pluginActivity.split("/");
        if (componentItems.length != 2) {
            return null;
        }
        ActivityInfo info = PhantomCore.getInstance()
                .findActivityInfo(new ComponentName(componentItems[0], componentItems[1]));
        if (null == info) {
            return null;
        }
        if (info.launchMode == ActivityInfo.LAUNCH_MULTIPLE) {
            proxyActivity = MODE_STANDARD;
        }
    }


    return proxyActivity;
}
 

/** Unbind the stub activity from real activity */
private void inqueueStubActivity(ActivityInfo ai, String realActivityClazz) {
    if (ai.launchMode == ActivityInfo.LAUNCH_MULTIPLE) return;
    if (mStubQueue == null) return;

    int countForMode = STUB_ACTIVITIES_COUNT;
    int offset = (ai.launchMode - 1) * countForMode;
    for (int i = 0; i < countForMode; i++) {
        String stubClazz = mStubQueue[i + offset];
        if (stubClazz != null && stubClazz.equals(realActivityClazz)) {
            mStubQueue[i + offset] = null;
            break;
        }
    }
}
 

public static String getLaunchMode(int mode) {
    switch (mode) {
        case ActivityInfo.LAUNCH_MULTIPLE:
            return "Multiple";
        case ActivityInfo.LAUNCH_SINGLE_INSTANCE:
            return "Single instance";
        case ActivityInfo.LAUNCH_SINGLE_TASK:
            return "Single task";
        case ActivityInfo.LAUNCH_SINGLE_TOP:
            return "Single top";
        default:
            return "null";
    }
}
 

public static void onActivtyCreate(Activity activity, ActivityInfo targetActivityInfo, ActivityInfo stubActivityInfo) {
    synchronized (mRunningActivityList) {
        RunningActivityRecord value = new RunningActivityRecord(activity, targetActivityInfo, stubActivityInfo, findMaxIndex() + 1);
        mRunningActivityList.put(activity, value);
        if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_MULTIPLE) {
            mRunningSingleStandardActivityList.put(value.index, value);
        } else if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) {
            mRunningSingleTopActivityList.put(value.index, value);
        } else if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) {
            mRunningSingleTaskActivityList.put(value.index, value);
        } else if (targetActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
            mRunningSingleInstanceActivityList.put(value.index, value);
        }
    }
}
 

public static void beforeStartActivity() {
    synchronized (mRunningActivityList) {
        for (RunningActivityRecord record : mRunningActivityList.values()) {
            if (record.stubActivityInfo.launchMode == ActivityInfo.LAUNCH_MULTIPLE) {
                continue;
            } else if (record.stubActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) {
                doFinshIt(mRunningSingleTopActivityList);
            } else if (record.stubActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) {
                doFinshIt(mRunningSingleTopActivityList);
            } else if (record.stubActivityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {
                doFinshIt(mRunningSingleTopActivityList);
            }
        }
    }
}
 

/**
 * Perform clear operation as requested by
 * {@link Intent#FLAG_ACTIVITY_CLEAR_TOP}: search from the top of the
 * stack to the given task, then look for
 * an instance of that activity in the stack and, if found, finish all
 * activities on top of it and return the instance.
 *
 * @param newR Description of the new activity being started.
 * @return Returns the old activity that should be continued to be used,
 * or null if none was found.
 */
final ActivityRecord performClearTaskLocked(ActivityRecord newR, int launchFlags) {
    int numActivities = mActivities.size();
    for (int activityNdx = numActivities - 1; activityNdx >= 0; --activityNdx) {
        ActivityRecord r = mActivities.get(activityNdx);
        if (r.finishing) {
            continue;
        }
        if (r.realActivity.equals(newR.realActivity)) {
            // Here it is!  Now finish everything in front...
            final ActivityRecord ret = r;

            for (++activityNdx; activityNdx < numActivities; ++activityNdx) {
                r = mActivities.get(activityNdx);
                if (r.finishing) {
                    continue;
                }
                ActivityOptions opts = r.takeOptionsLocked();
                if (opts != null) {
                    ret.updateOptionsLocked(opts);
                }
                if (mStack != null && mStack.finishActivityLocked(
                        r, Activity.RESULT_CANCELED, null, "clear-task-stack", false)) {
                    --activityNdx;
                    --numActivities;
                }
            }

            // Finally, if this is a normal launch mode (that is, not
            // expecting onNewIntent()), then we will finish the current
            // instance of the activity so a new fresh one can be started.
            if (ret.launchMode == ActivityInfo.LAUNCH_MULTIPLE
                    && (launchFlags & Intent.FLAG_ACTIVITY_SINGLE_TOP) == 0
                    && !ActivityStarter.isDocumentLaunchesIntoExisting(launchFlags)) {
                if (!ret.finishing) {
                    if (mStack != null) {
                        mStack.finishActivityLocked(
                                ret, Activity.RESULT_CANCELED, null, "clear-task-top", false);
                    }
                    return null;
                }
            }

            return ret;
        }
    }

    return null;
}
 

/**
 * 获取一个占位activity
 *
 * @param pluginActivity 插件activity
 * @param launchMode     插件activity启动模式
 * @param isFixed        是否建立固定映射关系
 * @return 占位activity
 * @throws ProxyActivityLessException 占位activity不够异常
 */
private String findActivity(String pluginActivity, int launchMode, boolean isFixed)
        throws ProxyActivityLessException {

    String activity = MODE_STANDARD;
    ActivityPool pool = null;

    switch (launchMode) {
        case ActivityInfo.LAUNCH_MULTIPLE:
            final PhantomCore phantomCore = PhantomCore.getInstance();
            final ComponentName componentName = ComponentName.unflattenFromString(pluginActivity);
            if (componentName != null) {
                final ActivityInfo ai = phantomCore.findActivityInfo(componentName);
                final PluginInfo pluginInfo = phantomCore.findPluginInfoByActivityName(componentName);
                final int themeResourceId = ai == null ? -1 : ai.getThemeResource();
                if (themeResourceId != -1 && pluginInfo != null) {
                    final Resources resources = pluginInfo.getPluginResources();
                    if (resources != null) {
                        final Resources.Theme theme = resources.newTheme();
                        theme.applyStyle(themeResourceId, true);
                        final TypedArray sa = theme.obtainStyledAttributes(
                                new int[]{android.R.attr.windowIsTranslucent});
                        final boolean translucent = sa.getBoolean(0, false);
                        sa.recycle();
                        activity = translucent ? MODE_STANDARD_TRANSLUCENT : MODE_STANDARD;
                    }
                }
            }
            break;
        case ActivityInfo.LAUNCH_SINGLE_TOP:
            pool = mSingleTopPool;
            break;
        case ActivityInfo.LAUNCH_SINGLE_INSTANCE:
            pool = mSingleInstancePool;
            break;
        case ActivityInfo.LAUNCH_SINGLE_TASK:
            pool = mSingleTaskPool;
            break;
        default:
            break;
    }

    if (null != pool) {
        activity = isFixed ? pool.resolveFixedActivity(pluginActivity) : pool.resolveActivity(pluginActivity);
    }

    String msg = String.format("resolve %s Activity for %s proxy is %s, fixed is %s",
            launchModeToString(launchMode), pluginActivity, activity, isFixed);
    VLog.d(msg);
    if (null == activity) {
        //占位activity不够使用, 这种情况不做处理，宿主提供足够的占位activity
        //这里不做主动回收，如果做主动回收可能会使程序正常执行流程发送改变
        ProxyActivityLessException pae = new ProxyActivityLessException(msg);
        LogReporter.reportException(pae, null);
        mCache.clean();
        throw pae;
    }

    return activity;
}
 

/** Get an usable stub activity clazz from real activity */
private String dequeueStubActivity(ActivityInfo ai, String realActivityClazz) {
    if (ai.launchMode == ActivityInfo.LAUNCH_MULTIPLE) {
        // In standard mode, the stub activity is reusable.
        // Cause the `windowIsTranslucent' attribute cannot be dynamically set,
        // We should choose the STUB activity with translucent or not here.
        Resources.Theme theme = Small.getContext().getResources().newTheme();
        theme.applyStyle(ai.getThemeResource(), true);
        TypedArray sa = theme.obtainStyledAttributes(
                new int[] { android.R.attr.windowIsTranslucent });
        boolean translucent = sa.getBoolean(0, false);
        sa.recycle();
        return translucent ? STUB_ACTIVITY_TRANSLUCENT : STUB_ACTIVITY_PREFIX;
    }

    int availableId = -1;
    int stubId = -1;
    int countForMode = STUB_ACTIVITIES_COUNT;
    int countForAll = countForMode * 3; // 3=[singleTop, singleTask, singleInstance]
    if (mStubQueue == null) {
        // Lazy init
        mStubQueue = new String[countForAll];
    }
    int offset = (ai.launchMode - 1) * countForMode;
    for (int i = 0; i < countForMode; i++) {
        String usedActivityClazz = mStubQueue[i + offset];
        if (usedActivityClazz == null) {
            if (availableId == -1) availableId = i;
        } else if (usedActivityClazz.equals(realActivityClazz)) {
            stubId = i;
        }
    }
    if (stubId != -1) {
        availableId = stubId;
    } else if (availableId != -1) {
        mStubQueue[availableId + offset] = realActivityClazz;
    } else {
        // TODO:
        Log.e(TAG, "Launch mode " + ai.launchMode + " is full");
    }
    return STUB_ACTIVITY_PREFIX + ai.launchMode + availableId;
}
 

private static void loadStubActivity() {
    Intent launchModeIntent = new Intent();
    launchModeIntent.setAction(buildDefaultAction());
    launchModeIntent.setPackage(FairyGlobal.getHostApplication().getPackageName());

    List<ResolveInfo> list = FairyGlobal.getHostApplication().getPackageManager().queryIntentActivities(launchModeIntent, PackageManager.MATCH_DEFAULT_ONLY);

    if (list != null && list.size() >0) {
        for (ResolveInfo resolveInfo:
                list) {
            if (resolveInfo.activityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) {

                singleTaskActivityMapping.put(resolveInfo.activityInfo.name, null);

            } else if (resolveInfo.activityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) {

                singleTopActivityMapping.put(resolveInfo.activityInfo.name, null);

            } else if (resolveInfo.activityInfo.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) {

                singleInstanceActivityMapping.put(resolveInfo.activityInfo.name, null);

            } else if (resolveInfo.activityInfo.launchMode == ActivityInfo.LAUNCH_MULTIPLE) {

                if (resolveInfo.activityInfo.theme == android.R.style.Theme_Translucent) {

                    standardActivityTranslucentMapping.put(resolveInfo.activityInfo.name, null);

                } else if (resolveInfo.activityInfo.screenOrientation == SCREEN_ORIENTATION_LANDSCAPE) {

                    standardLandspaceActivity = resolveInfo.activityInfo.name;

                } else {

                    standardActivityMapping.put(resolveInfo.activityInfo.name, null);

                }
            }

        }
    }

}