Java PackageManager.resolveActivity方法代码示例

import android.content.pm.PackageManager; //导入方法依赖的package包/类
private static void redirectToDownload(final Context context) {
    Toast.makeText(context, "No Bitcoin application found.\nPlease install Bitcoin Wallet.", Toast.LENGTH_LONG)
            .show();

    final Intent marketIntent = new Intent(Intent.ACTION_VIEW,
            Uri.parse("market://details?id=com.okwallet"));
    final Intent binaryIntent = new Intent(Intent.ACTION_VIEW,
            Uri.parse("https://github.com/bitcoin-wallet/bitcoin-wallet/releases"));

    final PackageManager pm = context.getPackageManager();
    if (pm.resolveActivity(marketIntent, 0) != null)
        context.startActivity(marketIntent);
    else if (pm.resolveActivity(binaryIntent, 0) != null)
        context.startActivity(binaryIntent);
    // else out of luck
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
/**
 * Tries to create a new PendingInstallShortcutInfo which represents the same target,
 * but is an app target and not a shortcut.
 * @return the newly created info or the original one.
 */
private static PendingInstallShortcutInfo convertToLauncherActivityIfPossible(
        PendingInstallShortcutInfo original) {
    if (original.isLauncherActivity()) {
        // Already an activity target
        return original;
    }
    if (!Utilities.isLauncherAppTarget(original.launchIntent)
            || !original.user.equals(UserHandleCompat.myUserHandle())) {
        // We can only convert shortcuts which point to a main activity in the current user.
        return original;
    }

    PackageManager pm = original.mContext.getPackageManager();
    ResolveInfo info = pm.resolveActivity(original.launchIntent, 0);

    if (info == null) {
        return original;
    }

    // Ignore any conflicts in the label name, as that can change based on locale.
    LauncherActivityInfoCompat launcherInfo = LauncherActivityInfoCompat
            .fromResolveInfo(info, original.mContext);
    return new PendingInstallShortcutInfo(launcherInfo, original.mContext);
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
private boolean openOtherPage(String intentUrl) {
    try {
        Intent intent;
        Activity mActivity = null;
        if ((mActivity = mWeakReference.get()) == null)
            return true;
        PackageManager packageManager = mActivity.getPackageManager();
        intent = new Intent().parseUri(intentUrl, Intent.URI_INTENT_SCHEME);
        ResolveInfo info = packageManager.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
        LogUtils.i(TAG, "resolveInfo:" + info + "   package:" + intent.getPackage());
        if (info != null) {  //跳到该应用
            mActivity.startActivity(intent);
            return true;
        }
    } catch (Throwable ignore) {
        if (LogUtils.isDebug()) {
            ignore.printStackTrace();
        }
    }

    return false;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
private boolean validateAppSignatureForIntent(Context context, Intent intent) {
    PackageManager pm = context.getPackageManager();
    ResolveInfo resolveInfo = pm.resolveActivity(intent, 0);
    if (resolveInfo == null) {
        return false;
    }
    try {
        for (Signature signature : pm.getPackageInfo(resolveInfo.activityInfo.packageName,
                64).signatures) {
            if (WEIBO_SIGNATURE.equals(signature.toCharsString())) {
                return true;
            }
        }
        return false;
    } catch (NameNotFoundException e) {
        return false;
    }
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
/**
 * 判断是否存在Activity
 *
 * @param packageName 包名
 * @param className activity全路径类名
 * @return {@code true}: 是<br>{@code false}: 否
 */
public static boolean isActivityExists(String packageName, String className) {
    Intent intent = new Intent();
    intent.setClassName(packageName, className);
    PackageManager packageManager = ContextUtils.getContext()
                                                .getPackageManager();
    return !(packageManager.resolveActivity(intent, 0) == null ||
                     intent.resolveActivity(packageManager) == null ||
                     packageManager.queryIntentActivities(intent, 0)
                                   .isEmpty());
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
@Override
public boolean onLongClick(View arg0) {
    // 

    if (mSettings.getBoolean("use_as_lock_main", false)) {
        getWindow().addFlags(
                WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
    }
    Intent i = new Intent(
            MediaStore.ACTION_IMAGE_CAPTURE);
    PackageManager pm = getPackageManager();

    final ResolveInfo mInfo = pm.resolveActivity(i, 0);

    Intent intent = new Intent();
    intent.setComponent(new ComponentName(
            mInfo.activityInfo.packageName, mInfo.activityInfo.name));
    intent.setAction(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);

    startActivity(intent);
    return true;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
private void findKnownBrowsers(PackageManager packageManager, Map<String, ActivityInfo> browsers, @NonNull Uri uri) {
    for (final KnownBrowser browser : KnownBrowser.values()) {
        if (browsers.containsKey(browser.packageName)) {
            continue;
        }

        // resolveActivity() can be slow if the package isn't installed (e.g. 200ms on an N6 with a bad WiFi connection).
        // Hence we query if the package is installed first, and only call resolveActivity for installed packages.
        // getPackageInfo() is fast regardless of a package being installed
        try {
            // We don't need the result, we only need to detect when the package doesn't exist
            packageManager.getPackageInfo(browser.packageName, 0);
        } catch (PackageManager.NameNotFoundException e) {
            continue;
        }

        final Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(uri);
        intent.setPackage(browser.packageName);

        final ResolveInfo info = packageManager.resolveActivity(intent, 0);
        if (info == null || info.activityInfo == null) {
            continue;
        }

        if (!info.activityInfo.exported) {
            continue;
        }

        browsers.put(info.activityInfo.packageName, info.activityInfo);
    }
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
private static void initialize(Context context) {
    final TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    
    sIsPhone = (telephonyManager.getPhoneType() != TelephonyManager.PHONE_TYPE_NONE);
    //sIsSipPhone = sIsPhone && SipManager.isVoipSupported(context);
    Intent pIntent = getPriviledgedIntent("123");
    callIntents = getPossibleActivities(context, pIntent);
    PackageManager pm = context.getPackageManager();
    defaultCallIntent = pm.resolveActivity(pIntent, PackageManager.MATCH_DEFAULT_ONLY);
    
    sIsInitialized = true;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
@Override
public void onCreate(final Bundle icicle) {
    super.onCreate(icicle);
    addPreferencesFromResource(R.xml.prefs_screen_correction);

    final Context context = getActivity();
    final PackageManager pm = context.getPackageManager();

    final Preference dictionaryLink = findPreference(Settings.PREF_CONFIGURE_DICTIONARIES_KEY);
    final Intent intent = dictionaryLink.getIntent();
    intent.setClassName(context.getPackageName(), DictionarySettingsActivity.class.getName());
    final int number = pm.queryIntentActivities(intent, 0).size();
    if (0 >= number) {
        removePreference(Settings.PREF_CONFIGURE_DICTIONARIES_KEY);
    }

    final Preference editPersonalDictionary =
            findPreference(Settings.PREF_EDIT_PERSONAL_DICTIONARY);
    final Intent editPersonalDictionaryIntent = editPersonalDictionary.getIntent();
    final ResolveInfo ri = USE_INTERNAL_PERSONAL_DICTIONARY_SETTINGS ? null
            : pm.resolveActivity(
                    editPersonalDictionaryIntent, PackageManager.MATCH_DEFAULT_ONLY);
    if (ri == null) {
        overwriteUserDictionaryPreference(editPersonalDictionary);
    }

    mUseContactsPreference = (SwitchPreference) findPreference(Settings.PREF_KEY_USE_CONTACTS_DICT);
    turnOffUseContactsIfNoPermission();
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
/**
 * Goes through all apps that handle VIEW intents and have a warmup service. Picks
 * the one chosen by the user if there is one, otherwise makes a best effort to return a
 * valid package name.
 *
 * This is <strong>not</strong> threadsafe.
 *
 * @param context {@link Context} to use for accessing {@link PackageManager}.
 * @return The package name recommended to use for connecting to custom tabs related components.
 */
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();
    // Get default VIEW intent handler.
    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
public static String getPackageNameToUse(Context context) {
    if (sPackageNameToUse != null) return sPackageNameToUse;

    PackageManager pm = context.getPackageManager();

    Intent activityIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com"));
    ResolveInfo defaultViewHandlerInfo = pm.resolveActivity(activityIntent, 0);
    String defaultViewHandlerPackageName = null;
    if (defaultViewHandlerInfo != null) {
        defaultViewHandlerPackageName = defaultViewHandlerInfo.activityInfo.packageName;
    }

    // Get all apps that can handle VIEW intents.
    List<ResolveInfo> resolvedActivityList = pm.queryIntentActivities(activityIntent, 0);
    List<String> packagesSupportingCustomTabs = new ArrayList<>();
    for (ResolveInfo info : resolvedActivityList) {
        Intent serviceIntent = new Intent();
        serviceIntent.setAction(CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION);
        serviceIntent.setPackage(info.activityInfo.packageName);
        if (pm.resolveService(serviceIntent, 0) != null) {
            packagesSupportingCustomTabs.add(info.activityInfo.packageName);
        }
    }

    // Now packagesSupportingCustomTabs contains all apps that can handle both VIEW intents
    // and service calls.
    if (packagesSupportingCustomTabs.isEmpty()) {
        sPackageNameToUse = null;
    } else if (packagesSupportingCustomTabs.size() == 1) {
        sPackageNameToUse = packagesSupportingCustomTabs.get(0);
    } else if (!TextUtils.isEmpty(defaultViewHandlerPackageName)
            && !hasSpecializedHandlerIntents(context, activityIntent)
            && packagesSupportingCustomTabs.contains(defaultViewHandlerPackageName)) {
        sPackageNameToUse = defaultViewHandlerPackageName;
    } else if (packagesSupportingCustomTabs.contains(STABLE_PACKAGE)) {
        sPackageNameToUse = STABLE_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(BETA_PACKAGE)) {
        sPackageNameToUse = BETA_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(DEV_PACKAGE)) {
        sPackageNameToUse = DEV_PACKAGE;
    } else if (packagesSupportingCustomTabs.contains(LOCAL_PACKAGE)) {
        sPackageNameToUse = LOCAL_PACKAGE;
    }
    return sPackageNameToUse;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
/**
 * Get Activity icon
 */
public static Drawable getIcon(PackageManager pkgManager, String pkgName, String activity) {
    if (pkgManager  == null || TextUtils.isEmpty(pkgName) || TextUtils.isEmpty(activity)) {
        return null;
    }

    Intent intent = new Intent();
    intent.setClassName(pkgName, activity);
    ResolveInfo resolveInfo = pkgManager.resolveActivity(intent, 0);
    if (resolveInfo != null) {
        return resolveInfo.loadIcon(pkgManager);
    }
    return null;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
private boolean hasEqualizer() {
    final Intent effects = new Intent(AudioEffect.ACTION_DISPLAY_AUDIO_EFFECT_CONTROL_PANEL);
    PackageManager pm = getActivity().getPackageManager();
    ResolveInfo ri = pm.resolveActivity(effects, 0);
    return ri != null;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
public static boolean hasEffectsPanel(final Activity activity) {
    final PackageManager packageManager = activity.getPackageManager();
    return packageManager.resolveActivity(createEffectsIntent(),
            PackageManager.MATCH_DEFAULT_ONLY) != null;
}
 

import android.content.pm.PackageManager; //导入方法依赖的package包/类
/**
 * 判断App是否安装
 *
 * @param context 上下文
 * @param action   action
 * @param category category
 * @return {@code true}: 已安装<br>{@code false}: 未安装
 */
public static boolean isInstallApp(Context context, final String action, final String category) {
    Intent intent = new Intent(action);
    intent.addCategory(category);
    PackageManager pm = context.getPackageManager();
    ResolveInfo info = pm.resolveActivity(intent, 0);
    return info != null;
}