private static void bundleToShortString(Bundle bundle, StringBuilder b) {
        boolean first = true;
        for (String key : bundle.keySet()) {
            if (!first) {
                b.append(", ");
            }
            b.append(key).append('=');
            Object value = bundle.get(key);
            if (value instanceof int[]) {
                b.append(Arrays.toString((int[]) value));
            } else if (value instanceof byte[]) {
                b.append(Arrays.toString((byte[]) value));
            } else if (value instanceof boolean[]) {
                b.append(Arrays.toString((boolean[]) value));
            } else if (value instanceof short[]) {
                b.append(Arrays.toString((short[]) value));
            } else if (value instanceof long[]) {
                b.append(Arrays.toString((long[]) value));
            } else if (value instanceof float[]) {
                b.append(Arrays.toString((float[]) value));
            } else if (value instanceof double[]) {
                b.append(Arrays.toString((double[]) value));
            } else if (value instanceof String[]) {
                b.append(Arrays.toString((String[]) value));
            } else if (value instanceof CharSequence[]) {
                b.append(Arrays.toString((CharSequence[]) value));
            } else if (value instanceof Parcelable[]) {
                b.append(Arrays.toString((Parcelable[]) value));
            } else if (value instanceof Bundle) {
                b.append(bundleToString((Bundle) value));
            } else {
                b.append(value);
            }
            first = false;
        }
    }
Intent object to string, the string would be in the format of "Intent { ... }".
android/android_framework/base/src/main/java/com/elvishew/xlog/internal/util/ObjectToStringUtil.java